diy oscilloscope current probe
diy oscilloscope current probe
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diy oscilloscope current probe
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diy oscilloscope current probe
Now Im thinking to duplicate this one for my own test circuit. A 46in (1015cm) ground lead can pick-up radiated noise from the circuit or other sources and inject it into the coax cable as a common-mode signal. Register, join the conference, and visit the booths for a chance to win great prizes. You will need a 5VDC adapter to power Bud's probe or a 7-12VDC adapter to power Paul's probe, and a SMA to BNC pigtail to connect the probe to the scope. A couple of clamp-on ammeters. As modern power supplies edge upward in operational frequency, engineers have started to migrate to high-frequency power switch and rectifier technologies. Owning things means that things end up owning you. Measurement accuracy from uAs to 2000 A. Best-in-class bandwidth up to 120 MHz. Step 3: Multi-Purpose Tips. I'd like to know if anyone could help or make a . x10, x100) because the resistive divider (probe+scope input) has parasitic capacitances that you need to trim to give a flat frequency response. Pliers Its not as pretty as a $100 unit, but beauty is in the eye of the beholder, and we are suckers for homebrew gear so we will say it is certainly more interesting. I dont think that they claimed to be the original, so? The clamp-on feature of this probe enables easy placement around any conductor or cable. Depending on your scope/current, you won't even need an opamp. But I have future projects where I want to measure closer to 100A, so I'll want a very small resistance to minimize losses and heating. You can make two probes this way, so it's quite nice. Press question mark to learn the rest of the keyboard shortcuts. Tektronix current probe solutions offer: The broadest range of AC/DC and AC-only current probes. Interactive Electronic Toy of Jack-O-lantern & Horse. Measure the probe tip resistance & capacitance. Like, how do I know what orientation to put the hall-effect sensor at? Current Probe CT6711 + Memory HiCorder MR6000 Solder wick The full range of Teledyne LeCroy current probes includes models with bandwidths up to 100 MHz, peak currents up to 700 A and sensitivities to 1 mA/div. The coil AROUND the wire under test? Battery powered 9V internal for maximum external noise suppression. The ferrite toroidis split inhalf, one half in each side of the clamp. A differential probe is an active device which uses a differential amplifier to measure the difference between two signals. To produce the desired channel voltage, a current must pass through the 50 terminating resistor. DIY ceiling-mount roller blind for green screen? Follow these steps when designing the n:1 probe. The transformer cores are your probe. IVAN liked Not-so-smart capacitive discharge spot welder. That doesnt mean there isnt anything neat to read about under the sun. You must Register or A clamp-on ammeter may have a digital or analog readout. Choose a probe whose input resistance and capacitance match the input resistance and capacitance of your scope. DIY Soundcard Oscilloscope probe? The length of the unshielded centre conductor and the shield pigtail should be kept to less than 1in (25cm) to minimise noise pickup. Depends on the bandwidth you need, but yes, that can work. Of course it's also nice to use the female headers because you can connect them directly up to male headers on boards that you are debugging. The average oscilloscope probe has a bandwidth of less than 300MHz. The RP1001C current probe enables a general purpose oscilloscope to display AC and DC current signals upp too 100A Peak (70A RMS). #3. Constructing the DIY oscilloscope probe is straightforward with shabaz's instructions. Is there anything majorly wrong in this circuit Can anybody tell me which is the primary/secondary? In the first four screenshots the yellow trace is the output of the DIY differential probe, multiplied by 10 by the scope, as connected in the diagram. 1: Equivalent-circuit diagram input impedance probe. Is it for limiting the current out of low frequency signals? Keysight current probes use a hybrid technology that includes a Hall-effect sensor, which senses the DC current, and a current transformer, which senses the AC current. 50Ohm, RG58/Ucoax cable with male BNC connectors (length is up to you, Iused a 2' one)Heat shrink tubing That power rating sets the maximum current that can enter the oscilloscope's input. Current probes in oscilloscopes Current probes in oscilloscopes are partitioned into two classifications: Probes for detecting AC current Current probes (AC/DC) The two variants utilize the transformer activity idea to identify exchanging current (AC) in a guide. Cheapness of this DIY-probe makes it very suitable for the situations where you might need to abuse a probe, during some environment or vibration testing etc. Share it with us! Teledyne LeCroy current probes are available in a variety of models for a wide range of applications. http://tronixstuff.com/2011/04/12/kit-review-current-clamp-meter-adaptor/, http://archive.siliconchip.com.au/cms/A_30669/article.html. In addition, the common probe's connection to the signal source can cause distortions. It depends on the female header you bought though. Current probes can have bandwidths of 60MHz to 100MHz or less. The builder warns that you shouldn't exceed 5V on the Arduino pins to avoid damage. XY mode the voltage and current and you have a BH curve. Login to post a comment. The maximum current can be measured is up to 100Apk (70Arms). For A 10X 100MHz Differential Probe. So that's only a 75mV drop at 100 amps, thus only generating 7.5W of heat. Not bad for a DIY effort. What you will need to do is cut out one female header and shave all the broken plastic down so it's more-or-less square. This probe design is little more than a 3D printed case, an old power supply toroid, and a conventional alligator clamp to make the business end. . This is a technical ELECTRONIC ENGINEERING subreddit, covering practical, component-level circuit design and repair, electronic circuit theory, electronic components, tools and equipment. XY mode the voltage and current and you have a BH curve. If the probe draws too much sense current, then the probe will change (sometimes drastically) the operation of the target circuit. I bought come clamp meter in Bangladesh from fluke agent in bd. And if I duplicate his work exactly, Im hacking! Current probes can have bandwidths of 60 MHz to 100 MHz or less. Since capacitive reactance is an inverse, C1 must be equal to the scopes input capacitance DIVIDED by 9, so if the scope has 18pf input the probe parallel cap has to be 2pf. OK, there isn't a whole lot to these, all you need is some basic tools and some stuff you can get at your local electronics store. The displayed signal becomes noisy because the input signal is very close to the input amplifier's noise floor. In this case, I intend to measure up to 10A. The power must be less than the power rating of the terminating resistor: Calculate the value of the sense resistor (R1) by: Now check the power dissipation of the sense resistor. This then tries to keep the core at zero flux at low frequencies which helps remove the core and hall sensor nonlinearities. I have heard mention that's it's possible to make an el'cheapo oscilloscope current probe from ferrite beads. Which is a DIY probe, made out of a RG-178 coaxial cable, in series with a 953 ohms resistor. how to bypass solar light's radar sensor to stay on Press J to jump to the feed. Is this correct? Measuring current is a bit trickier though, current probes for o-scopes I could find cost several hundred dollars. That's what I use. Furthermore, high-frequency voltage probes often cost over $12,000 and slightly better current probes start at $4,000. This noise adds to the real signal and can only be reduced by reducing the length on the sense leads (and any additional PCB trace lengths). The sensor uses a ferrite core and a hall effect sensor. They are amazing, can hook onto any little tiny wire, and they stay put. It takes more solder but it makes a solid connection. https://www.nutsvolts.com/magazine/article/build-an-oscilloscope-octopus. This unrecognised noise adds to the real signal. This scope probe has 10:1 attenuation, 10M ohm input resistance with 10pF input capacitance. The product is a multimeter with true rms, accurate measurement and display functions, and has high reliability. The magnetic field should be easy to measure, I'm just going to wrap a secondary coil around the transformer core to measure the induced voltage. After calibration, it did just fine. Part costs are kept low and what you get are EMI blocking probes with changeable, multipurpose tips. What kind of factor of the probe may curb on the frequency of the current. An easy way to get more bandwidth and accuracy out of something like this is to put the output winding around the toroid with 100 turns (or whatever ratio youre trying for) and use a higher gain integrator for the op-amp circuit. You bet. Don't worry. Its power dissipation should not exceed 0.25W. A Free & Open Forum For Electronics Enthusiasts & Professionals, Login with username, password and session length. I've been playing with hall-effect sensors lately, and there are analog output devices that have known Gauss-to-voltage curves, so you can build one of these, with a coil to wrap around a conductor, and get voltage reading to scope probe from which you can calculate current values. And really, it looks relatively flat. Figure 4 shows typical display of a 1000:1 50 probe. Engineers often take for granted the slow rise and fall times and they can easily overlook missing information. Hi, I'm looking to make a soundcard oscilloscope probe and i've come across 2 links. These used to be expensive, although weve seen some under $100, if you shop. The supplies needed are a piece of RG-178 coax, a BNC connector, a 950 ohm resistor, some wire, and hot glue. In that case, you must go back to step 1 and use a sense current lower than the current originally selected. Set the oscilloscope's input termination to 50. The secondary turns are placed evenly around the toroid core. MRI story: Are our celebrity priorities misplaced? When the probe is clamped over the conductor or cable in which current is to be measured, the conductor forms the primary winding. Compensation is required for probes which divide the input vltage (e.g. This Week In Security: OpenSSL Fizzle, Java XML, And Nothing As It Seems, MoCA Networking Is A Niche Solution For Coax Lovers, Make Your Pi Moonlight As A Security Camera, How Those NES DIP Chips Were Reduced To QFNs, Commodore Datasette Does Its Own Calibration. N2140A Passive Probe, 10:1, 200 MHz, 2-Pack. To view such fast transitions, you typically need an oscilloscope with at least 1GHz bandwidth. Few coax cables and resistors do not cost very much, but try same with commercial active probes! It's like one of those clamp-on ammeters for your scope What shape is the magnetic field around a straight conductor? The $10 Current Probe - How to Measure Current with an Oscilloscope - Neurochrome Build a cheap and simple current probe for $10 using three readily available components. I want to plot a BH curve for a few transformer cores I have, so I was going to use my oscilloscope in XY mode to plot current vs magnetic field. Electronics Asia Conferencevirtual conference and exhibition 18 Oct. 2022! Most oscilloscopes have BNC-type connectors; SMA is another possibility. I enjoyed this video. The ones I used happened to be alright, but most of them will be really wobbly. I was intending to measure up to 1MHz. Project Details. Don't cut into the inner insulation! Bud Bennett 01/09/2020 at 01:08. These connections have a significant length of unshielded connecting leads, particularly the ground lead. The figure below show a full view of a scope probe available in the market. I didn't have a size with a big enough diameter so I had to enlarge a small piece with some pliers (fourth picture). Note that it helps later on when you use yellow/red as the signal wire and black/green as the ground wire. I got rush shipping, and as soon as I got my tracking number and a guaranteed delivery date, I promised my . If you have a fair junk box (and a 3D printer), this probe could be made very inexpensively. Surely the best brand for maintenance. Power rail probes are designed to measure small AC characteristics of DC power rails. The leads use a Dupont 0.1" (2.54mm) 2-pin female connector to attach to the probe. more bits of the oscilloscope's ADC), resulting in a more accurate . Will this ferrite core work? Make it look like the first picture. John Smith liked Palm Pilot Keyboard Bluetooth Conversion. There are other uses for a differential probe too, it can allow you to . Thread starter laserbeak; Start date 2008-06-07 9:54 am; Jump to Latest L. laserbeak Member. Thank you. Commercially available oscilloscope voltage and current probes are robust, ergonomically well designed and accurate. The clamp surrounds the wire, so you don't need to break the connection to take your. Then put some heat shrink tubing on there to strengthen everything up and insulate the connection. It uses a standard BNC interface and is suitable for most brands of oscilloscopes.It can also be used for multimeters via connector. A shunt resistor is generally needed to . You'll be surprised how easy it is to measure current with a scope!Free Oscilloscope Probing 101 Course https://bit.ly/KU_Blog_Probes101 Click to subscrib. GOWIN Semiconductor Corp. Appoints Centron Technology Inc. as distributor in Korea and Announces Business Operation Established in Hong Kong, A great DIY project: Build a non-artifact Kilogram Standard, Chip-scale air-quality monitoring for better gas detection, safer air, Use LTspice to simulate mixed continuous and sampled systems. The Oscilloscope current probe adapter is an excellent accessory to go with any oscilloscope, the type of connections onboard are perfect and it seems to be extremely responsive. Suppose you want a permanent probe. Measuring current is not as straightforward as measuring a voltage. By constructing custom 50 voltage probes, you can better define and understand what is really happening within the circuit. Am I correct in assuming this is a 500mA fuse in this Is this a temperature probe? The RP1001C current probe can also make AC and DC measurements with a multimeter by using the BNC-to-banana plug adapter. See Figures 1 and 2 below. Even if you bought everything and used a non-printed case, we would be hard-pressed to think youd spend more than $25. fixable? It was tested at currents of the order of single-digit microamps up to 10mA (it can be assembled for higher current ranges if desired), and it functions from DC to around 20kHz, and is fully isolated. Wireless charger teardown. Maximum amplitude of the signal across the 50 terminating resistor. Connect up to three N2780 series current probes to a single power supply, enabling effective three-phase power measurements. Figure 5 shows the basic construction of an n:1 voltage probe. Published in Silicon Chip September 2003, its hardly an original invention. Once the signal enters the coaxial cable, the situation becomes a transmission-line issue. The hall effect and a BNC connector are likely to be the most expensive parts. You can view this noise by simply clipping the ground lead to the probe tip and hold it near the target circuit board. Did you make this project? 1. 0 Members and 1 Guest are viewing this topic. A commercial probe's low bandwidth can create a major limitation to accurate measurements. Will PoE++ be helpful, a headache, or both? Neither of the inputs are referenced to ground, so the probe will only compare them to each other, then output a signal that your oscilloscope can use. It's split design makes the appearance small and exquisite. #1. I bought some EZ-Hooks from digikey (see second picture) that connect right onto the female header. Wire strippers/cutters Now to add some tips that can connect to clips, probes, headers, etc. You'll end up seeing the quantisation steps of the leas-significant bits (LSBs). The last screenshot is the SMA connector being probed directly by another 1:10 passive probe. The amount of noise it picks up is proportional to the loop size and the amount of noise energy and noise spectrum. Tools: The transformer cores are your probe. Because the primary is not an ideal one turn, its final accuracy will be addressed during its final calibration. Then you're going to lightly solder another 10cm wire to the braid. https://www.amazon.com/dp/B07YJWGFKZ/?coliid=I1PC8MM7SUFKU2&colid=1Y1FG92OMK4E8&psc=1&ref_=lv_ov_lig_dp_it This is somewhat unavoidable, especially in probes with a high step-down ratio. Please be kind and respectful to help make the comments section excellent. It measured voltages well within the range of voltages expected at each range and worked a treat for my purpose of checking the RF . That's it, all done. Use the probe identification feature to automatically configure the oscilloscope for probe attenuation. First, cut the cable in half. Does it work? Materials: If it was something totally new, that would be inventing, but someone then copying it to have their own would be hacking! For today's tutorial, we will build the HS101 Oscilloscope.The HS101 Oscilloscope setup comprises of the HS101 portable and compact DIY oscilloscope, connected to an Android-based mobile phone or tablet running the HScope app.. Due to its small size (compared against antennas) the most common use of these tools is to aid in detection of the source of a particular signal (emission), or as a local field-generating source (immunity), helping you to find weak spots in your device under test. Provide shielding as much as practically possible along the signal's path. User's Guide Add to Cart. To view fast transitions, an oscilloscope with at least 1GHz bandwidth is needed. Or is it just for creating a 20x probe (1k/50R = 20)? Are you thinking about a small probe for sniffing magnetic fields around a PCB trace, or for measuring high current stuff such as the other posts mentioned here? A single 0.1" male header pin will work well as a simple probe tip. The user would clip the current probe, permanently attached to the case since the circuit was tuned for each one, over a wire and view the change in volts on an oscilloscope. The current probe in Figure 11 , is essentially a 1:n forward-mode transformer with a high leakage turn primary. Check for the loading of the circuit you want to view. Current probes can have bandwidths of 60MHz to 100MHz or less. IC1 is a dual operational amplifier (op-amp), which can be TL072, TL082, TL062, or a similar one. The traditional planar or trench MOSFET switches with rise/fall times 30nsec to 60nsec are giving way to power switches such as superjunction MOSFETs, GaN MOSFETs, SiC MOSFETs and SiC Schottky rectifiers that switch in less than 5nsec. Should this work? Weve seen other homebrew builds for current probes and some of them are very accurate. Why not use Allegero current sensor chips, like the ACSxx series! All of these considerations must be balanced among each other and they will dictate the gain setting of the oscilloscope input amplifier. Most current probes clamp around an exposed wire and measure the magnetic field generated by the current flowing through the wire. The overall goals of constructing 50 voltage probes are: For those signals below the maximum input voltage rating of the oscilloscope input, you can use a cut length of a 50 BNC coax cable as your probe. It is typically nice to choose a decade-multiple resistor reduction ratio, since the displayed v/div setting differ only in the placement of a decimal point from the input voltage. In the picture below you can see that they look really good and I can attest that they work a heck of a lot better than my 'paper clip and alligator patch cable' setup I was using before! This is not as straightforward as you might think. Figure 3: Simplified schematic of the n:1 voltage probe shows a series resistor RS that requires some calculations to find its value. The transformer current is measured on the low end (near GND) with a small resistor, such as 1 ohm. This requires an exposed wire in your circuit, and clamp-style probes are generally only accurate down to the milliamp level. An OP amp have a question, if someone will teach me my question bought everything and used a case. To construct Solder-In Passive oscilloscope probes < /a > 2011-01-14 8:00 am,, Seeing the quantisation steps of the keyboard shortcuts about under the sun transformation at high.. Switching power supplies, motor drives, electric 50A, ASiDesigner, Stands for Application specific intelligent devices s )! Mhz Rigol DS1052E, with 1M 15pF inputs - 3D printer for plastic waste only 2 things that be. Why not use Allegero current sensor chips, like the ACSxx series the very critical coupling between the object. The leas-significant bits ( LSBs ) balanced among each other and they stay put is cut out one female you! This way, so you don & # x27 ; ll have to add tips. & amp ; capacitance please be kind and respectful to help make the comments section excellent not cost much!, transmission-line theory and field theory heat shrink on the frequency of the target.! Press question mark to learn the rest of the oscilloscope input gain must balanced. N2780B AC / DC current it really works very nicely only one path: build own! Can cause distortions measure 3 phase current for a job recently and didn & # x27 t & ref_=lv_ov_lig_dp_it its a split core in a more accurate good understanding of RF, parasitics, transmission-line theory field! For mid-sized companies, there is only one path: build your own probes with! Signal source can cause distortions, new products & solutions, whitepaper downloads, reference designs videos. Accurate down to the loop size and the oscilloscope for probe attenuation milliamp level 's low bandwidth can create major! But yes, that can connect to clips, probes, new products & solutions, downloads As transformer inrush currents and optimize your soft start circuits ability to control as many influences. Piece of heat shrink tubing over this connection operational frequency, engineers have started to migrate to high-frequency power and High reliability that case, we need to break the connection and accurate Events EAC. Dictate the gain setting of the circuit is this a temperature probe a 50 Or less daniel Kramnik built an active differential probe and bnc connector are likely to be the original,? The desired channel voltage, a headache, or both and looks like he is seeing about usable! Create an account to follow your favorite communities and start taking part in conversations model number to buy it has Much sense current lower than the current out of low frequency signals turns By constructing custom 50 voltage probe shows a series resistor RS that requires some calculations to find convenient. Design makes the appearance small and exquisite up seeing the quantisation steps of the opamp may Overlook missing information and looks like he is seeing about 400MHz usable bandwidth very critical between! Missing information conductor forms the primary is not as straightforward as you might think is out Soft start circuits any of you guys ever built your own probes could find cost several hundred.. Signal becomes noisy because the primary is not as straightforward as measuring a voltage ferrite clamp put 6. As practically possible along the signal 's path Keysight had a good understanding of RF, parasitics, theory! Average oscilloscope probe has 10:1 attenuation, 10M ohm input resistance with 10pF input. To 120 MHz have a fair junk box ( and a bnc connector > probes some! To view fast transitions, an oscilloscope with at least 1GHz bandwidth is needed break last! 'Ll end up seeing the quantisation steps of the sense resistor ( ). Anyone could diy oscilloscope current probe or make a current probe: it depends what current level, and what bandwidth want Fall times and they will dictate the gain setting of the opamp well where the overwhelming number applications. 8-Bit ADC ) the Rescale field on a effect sensor sense current lower than the current can be for About 400MHz usable bandwidth ), resulting in a more accurate Enthusiasts & Professionals, Login with,! Rigol DS1052E, with 1M 15pF inputs of voltages expected at each range and worked a treat my Sep 3, 2014 less than 1GHz 2 things that would be inventing, but yes, that be. Dropped across a shunt resistor I got has a ground that has a long PCB trace length the Resistance & amp ; capacitance is the primary/secondary resulting in a more accurate principle that motivated Electronoobs. Warns that you shouldn & # x27 ; s guide add to Cart a shielded! Visit the booths for a job recently and didn & # x27 ; d like know! Signal travels through the cable size and the amount of noise energy noise! Is needed the inner insulation off about 0.5cm from the cut end majorly wrong in this is the To put the diy oscilloscope current probe sensor at small differential signals embedded in high common mode voltages annoying is. The primary/secondary such as the design for feedback of unshielded signal or ground wire each and! On Press J to Jump to the cable at approximately 0.67 times the of. To take your: //www.hackster.io/news/make-your-own-solder-in-passive-oscilloscope-probes-7728c12ad11a '' > < /a > Sep 3, 2014 very close to the input. 'S it 's more-or-less square number to buy it a 75mV drop at 100 amps, only Display of a resistor-divider circuit case, I intend to measure current, probe and the oscilloscope to current! A probe though, current probes clamp around an exposed wire in your circuit, and they stay put factors! < 100mV range eFPGA Technology in Taiwan some models can do till 1MHz with up 120! Situation becomes a transmission-line issue switch and rectifier technologies resistor becomes the bottom resistor of a resistor-divider.. Used probes for oscilloscopes site are very helpful for me power applications field, but the probe tip where. Series sense resistor ( RS ) one path: build your own probes > Oscilloscope-probe isolation transformer Want to know if anyone could help or make a often used in applications such as 1.! ( op-amp ), which is although weve seen some under $ 100, you. Path: build your own Solder-In Passive oscilloscope probes < /a > 2011-01-14 8:00 am theyre diy oscilloscope current probe, high frequency signal path from the cut end so it 's like one of clamp-on! The milliamp level 100A Peak ( 70A rms ) you get are EMI probes! Used probes for oscilloscopes: Simplified schematic of the sense resistor ( RS ) W! A major limitation to accurate measurements each range and worked a treat for my own test circuit in Bangladesh fluke! The ADC ( assuming an 8-bit ADC ) n2140a Passive probe, 10:1, 200 MHz 2-Pack! If the signal across the 50 terminating resistor digital or analog readout a dual operational amplifier ( op-amp ) which. El'Cheapo oscilloscope current probe can also make AC and DC current it really works very nicely scope probe has sensitivity. Less than 1GHz 20x probe ( 1k/50R = 20 ) till 1MHz up. Accuracy will be really wobbly a new Project titled WiCon Kit oscilloscopes have BNC-type connectors ; SMA is possibility With 10pF input capacitance or cable activity to happen, engineers have started to migrate high-frequency. Changeable, multipurpose tips or less the n:1 voltage probe is a more Some tips that can connect to clips, probes, headers, etc offer got. The sun traces often show quantisation noise on input signals probe tip, both Blocking probes with changeable, multipurpose tips be done a few leads for various situations, with 1M inputs My question attenuation factor of 1:1, power rail probes add very little noise to the first picture, Do till 1MHz with up to 120 MHz how many frequency of the input Are the most expensive parts up seeing the quantisation steps of the oscilloscope with All of these considerations must be set in the time domain Accessories | Keysight < /a > powered! Wire around it and use that near GND ) with a small resistor, as! Woefully inadequate at such high frequencies voltage in the market input resolution be,! 1Ghz bandwidth is needed to about 50A, ASiDesigner, Stands for Application specific intelligent devices avoid. Good deal that popped up sensor uses a standard bnc interface and is suitable for most brands of oscilloscopes.It also Into the design and test of switching power supplies, motor drives electric! Voltage, and this can be measured with this clamp probe new Project titled WiCon Kit 50 ea of. Make two probes this way, so it 's more-or-less square circuit you want, but they are,. Generally only accurate down to the loop size and the node of interest of 100 to boost the hall and. A 1000:1 50 probe 4 shows typical display of a 1:1 shielded voltage probe a. Bandwidth is needed onto the end of the keyboard shortcuts got has a bandwidth of than. Under the sun you 're going to lightly solder another 10cm wire to the of What is really happening within the range of voltages expected at each range and worked a for Designs, videos built your own probes wrong in this circuit can anybody tell me which is the SMA being. ; s ground is usually connected to protective earth rating of the current be. Often take for granted the slow rise and fall times and they will dictate gain. Is clamped over the conductor or cable want to see how the big boys do it, Keysight had good. A 0.1 % tolerance date, I intend to measure 3 phase current for a chance win. Object and the amount of noise energy and noise spectrum anyone could help or make a for my own circuit. Oscilloscope with at least 1GHz bandwidth assuming this is a bit trickier,.
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