- 1. [AMPS] measuring meter shunt resistance (score: 1)
- Author: zeitler@ibm.net (zeitler@ibm.net)
- Date: Thu, 17 Jun 1999 20:47:35 -0700
- Gents, Is there a simple way to accurately measure the low resistance of a current meter shunt? I am trying to get my plate current and grid current meters calibrated and I need to verify the values
- /archives//html/Amps/1999-06/msg00509.html (7,840 bytes)
- 2. [AMPS] measuring meter shunt resistance (score: 1)
- Author: jono@enteract.com (Jon Ogden)
- Date: Thu, 17 Jun 1999 23:02:26 -0500
- The ARRL handbook talks about a method using two meters and a known resistance. I can look up the specific page if you like. 73, Jon KE9NA -- Jon Ogden KE9NA http://www.qsl.net/ke9na <-- CHECK IT OU
- /archives//html/Amps/1999-06/msg00510.html (8,190 bytes)
- 3. [AMPS] measuring meter shunt resistance (score: 1)
- Author: dhearn@ix.netcom.com (dan hearn)
- Date: Thu, 17 Jun 1999 22:05:07 -0700
- There is a simple way to avoid this problem which I have used many times through the years. If you need a value near 0.3 ohms for proper calibration, use a standard larger value resistor such as 1 or
- /archives//html/Amps/1999-06/msg00511.html (9,355 bytes)
- 4. [AMPS] measuring meter shunt resistance (score: 1)
- Author: rakefet@rakefet.com (Vic Rosenthal)
- Date: Thu, 17 Jun 1999 22:24:37 -0700
- There are ways of doing it, but maybe you should consider a different method: Put a 1 or 10 ohm resistor in series with the circuit. Then use a multiplier resistance to convert your milliammeter to a
- /archives//html/Amps/1999-06/msg00513.html (8,600 bytes)
- 5. [AMPS] measuring meter shunt resistance (score: 1)
- Author: measures@vc.net (Rich Measures)
- Date: Thu, 17 Jun 1999 23:37:07 -0700
- ? One way to measure low resistance values is to put 1.000 ampere through the unknown resistance. Measure the potential across the unknown resistance with your Fluke. 1mV=1milli-ohm. - later, Lane R
- /archives//html/Amps/1999-06/msg00514.html (8,647 bytes)
- 6. [AMPS] measuring meter shunt resistance (score: 1)
- Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK)
- Date: Fri, 18 Jun 1999 06:56:21 +0100
- Try thinking about it a different way - what you really need is to know is that when (say) 1.0A is passing through the plate meter shunt, the plate meter reads 1.0A. Thinking about it that way gives
- /archives//html/Amps/1999-06/msg00517.html (8,923 bytes)
- 7. [AMPS] measuring meter shunt resistance (score: 1)
- Author: wb8jkr@juno.com (Mark S Graalman)
- Date: Fri, 18 Jun 1999 05:46:50 EDT
- Take a low voltage supply on the order of 12 volts or so and tie it to the shunt through a couple hundred ohms, measure the current draw through and voltage drop across the shunt and apply ohm's law.
- /archives//html/Amps/1999-06/msg00520.html (9,392 bytes)
- 8. [AMPS] measuring meter shunt resistance (score: 1)
- Author: k8cc@ix.netcom.com (David A. Pruett)
- Date: Fri, 18 Jun 1999 20:45:39 -0400
- Lane, A better method rather than measuring the shunt is to set up a bench supply with a series limiting resistance to put a specified amount of current thru the meter/shunt assembly and calibrate it
- /archives//html/Amps/1999-06/msg00525.html (9,131 bytes)
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