Questions tagged [resistance-measurement]
The resistance-measurement tag has no usage guidance.
14
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How to measure multiple resistances with Arduino Uno, without one measurement influencing the other?
I'm working on a project where I aim to measure resistances using an Arduino Uno. I started with two separate voltage dividers, each using a 1 MOhm reference resistor, connected to a common Arduino ...
- 43
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Reduction for a multi-port resistive network
I have an NxN admittance Matrix, G for a purely resistive network. There are total N^2 ports in the network such that each port is connected to every other port through some admittance.
As expected, G ...
- 61
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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 ...
- 1
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4
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867
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Characteristic impedance of a BNC jack to jack adapter
I have this BNC jack to jack adapter. I want to measure its impedance but I am reading around 1mΩ. The datasheet says that it is a 50Ω adapter.
Why am I measuring such a low resistance?
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1
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Art of Electronics - Confused about Zener Diode voltage formula
Working through Art of Electronics and the section on Zener diodes confuses me. There's another question about this section on the site (Art of Electronics - Zener Diode Example), but I'm still ...
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How can I describe the loading effect of an ohmmeter?
How can I describe the loading effect in an ohmmeter? I've been given an assignment with this question, and I tried to look it up on the internet but could find no other material apart from loading ...
2
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1
answer
149
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Multimeter resistance measure repair
I have ancient multimeter, recently the resistance range shows very incorrect values (or nothing). I have schematics and started to analyze, but can not identify how the resistance measure works.
...
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64
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Higher Resistance Measurement on Wet Tongue than Dry Tongue?
I'm trying to start learning about electrical engineering as a hobby. I'm reading from a book right now, and it suggests using my multimeter to measure the resistance of my tongue while it's wet and ...
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3
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3
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Measuring low resistance (0.1 Ω range)
The application is to light up numbers of LEDs depending on the measured resistance, eg. 1 LED for 0.1 Ω / 2 LEDs for 0.2 Ω.
I'm quite new to circuitry so I'm thinking of using four terminal sensing ...
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0
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1k
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Solve the current theough 15Ω load resistance using Norton's theorem
Here, I am asked to find out the current through the 15 ohm load resistor (the resistor on the extreme right) using Norton's theorem. I have proceeded with the sum and found out the Norton's ...
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How can I test a variable resistor, while it is still in the circuit board? [closed]
How can I test a variable resistor, in the circuit? It is a 6p1 102, The ohms I am getting are approximately 1700 ohms. Is this normal for still being on the PC board? Adjustment knob appears to be ...
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Measure resistance
What's the simplest way to measure the resistance between two inputs and turn on the appropriate LED:
0Ω
≤
R ≤
1kΩ
... output = RED
10kΩ
≤
R ≤
100kΩ
.... output = YELLOW
1MΩ
≤
R ≤
∞
... output = GREEN
...
- 215
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4
answers
472
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Measuring outside of multimeter range
While preparing a measuring setup for a project, I've realized that the multimeter our lab can provide only supports resistance measurements up to 10^8 Ohm. Since the materials we want to measure go ...
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Resistor switching methods
I have an application where I need to measure the voltage drop over a resistor that varies between 10 ohm - 50 kohm. As I have this set up as a voltage divider, with the result being read by an AtoD, ...
- 12k