Questions tagged [probe]
A physical device used to connect an electronic instrument (such as an oscilloscope) to a circuit in order to measure quantities such as voltage, current, temperature, etc. Use in conjunction with related tags such as "oscilloscope", "voltmeter", etc., as applicable.
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Driving 50 Ω coax cable for doing measurements with oscilloscope
This is a follow up question to Using 50 Ω coax cable instead of passive probe.
In the linked question I asked whether it would be possible to use a 50 Ω coax cable instead of the passive probe for ...
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Using 50 Ω coax cable instead of passive probe
Preface, why am I asking this question?
Instead of using a passive probe with a ground clip, I want a more "permanent" and reliable connection for my measurements. Note: I'm not talking ...
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Oscilloscope: when to use coaxial instead of probes?
I understand the difference between passive and active probes, and between x1, x10, x100, ...
I also understand that at high frequencies the capacitance of the oscilloscope has to be considered, so a ...
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Why am I seeing a signal on a shorted differential probe?
I am chasing the cause of some weird microcontroller resetting behaviour in a prototype robot. As part of the debugging, I decided to look at the stability of the power supply for the MCU.
I soldered ...
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Looking for a short sharp pin [closed]
I'm looking for a short pin with a sharp point, to be used for probing a circuit. Similar to a scope probe tip, but for a dedicated custom PCB.
Ideal length of <5mm, diameter of <1mm, solderable....
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Circuit works only when oscilloscope probe is connected and does not work otherwise
I have built the circuit shown below.
The problem is that the circuit only works when I connect oscilloscope probes between node-A and the ground.
If I remove or decouple the probe-ground from the ...
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Why is my oscilloscope math mode showing an RMS voltage in gigavolts (unexpectedly high value)
I'm experiencing an issue with my Rigol DS1202 oscilloscope. When using the math function to measure the RMS voltage of the difference between two channels (A - B), the RMS value is displayed in ...
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Why is the frequency response from my 1X and 10X probe seem to be converging with increasing frequency?
I'm a Mechanical Engineer trying to get into electronics so please excuse my lack of understanding.
I'm feeding a 5.0 Vpp sine wave into my SDS 1202X-E scope from my signal generator (see image below)....
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How do you attach an oscilloscope ground spring?
Sometimes you need to ensure that your oscilloscope probe ground lead is not creating measurement error such as ringing and overshoot. In various forms, I have seen (and successfully used) a ground ...
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Can differential probes be used with floating oscilloscopes, such as handheld/tablet scopes?
I am in the market for a differential probe (and possibly a handheld oscilloscope down the track for field work). One seller I came across has a warning for many of the probes that they sell saying &...
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Fluke 15b+ fuse test
I have accidentally shorted my circuit (5 volts Vcc) for approximately 1-2 seconds max.
While the circuit was short circuited, I used the Fluke as an ammeter in milliampere mode (400 mA max fused).
...
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What are the differences between a x1 and a x10 oscilloscope probe
I've heard pros of x10 oscilloscope probes a lot.
Now I need to know the cons, but I couldn't find a clear explanation.
Some people say x1 probe is for small signal.
How do you decide either x10 or x1?...
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Passive probe vs diffential probe
In the image:
Channel 1: Drain to source voltage
Channel 2: gate to source voltage
Channel 3: Switch current
Channel 4: Load current
The image shows Vds of low side MOSFET at turn on measured with a ...
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Two-point probe volume resistance how to measure without guard?
So I have measured the surface resistance of a highly insulative material using a Megger MIT 420/2 and a two-point probe. But how would I go about measuring volume resistance? The Megger has no guard ...
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What type of probes are used to connect to plated-through-holes without soldering a pin into the socket? [duplicate]
Are there probes that are designed to insert snugly into 40-mil holes (about the size of those needed by a DuPont connector)?
I am thinking of something that looks like a banana plug with springs on ...
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