Could This Be a Strain Gauge from My Disassembled Scale?

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SUMMARY

The discussion centers on the identification of a strain gauge from a disassembled electronic scale. The user measured the resistance of the gauge using a multimeter, noting values between 992 ohms and over 1000 ohms when pressure is applied. The wiring configuration includes a red wire for supply, a black wire to complete a half bridge, and a white wire for signal output. A reference to a wiring diagram from Strainsert provides additional clarity on the connections.

PREREQUISITES
  • Understanding of strain gauge principles
  • Familiarity with multimeter usage
  • Knowledge of electrical wiring and color codes
  • Basic concepts of bridge circuits
NEXT STEPS
  • Study the operation of strain gauges in detail
  • Learn about half-bridge and quarter-bridge configurations
  • Research multimeter techniques for measuring resistance
  • Examine the Strainsert wiring diagram for practical applications
USEFUL FOR

This discussion is beneficial for electronics enthusiasts, engineers working with sensors, and anyone interested in understanding strain gauge applications in measurement systems.

David lopez
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I disassembled an electronic scale. I removed a piece from the corner. I think it is an strain gauge. When I Press on it a reading appears on The liquid crystal display. It might Say 9.6 or 10.8 or 11.5. I used a multimeter to measure it resistance. It 992 ohms. Unless I press on it. Then its 994 ohms or 995 ohms Or 998 ohms. Sometimes a little More than 1000 ohms. It has 3 wires What is the white wire for. It has a Red wire. It has a black wire. It has A white wire.

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Is there a question in there somewhere? Also, why do your posts always seem to be just a few words per line? I don't see that with any other poster so I'm wondering what device/app you are using that seems to have that limitation (or do you just prefer to post that way?)
 
This is a poor question. Please provide some sort of graphic support for your description. A picture of the object will help. If the level of information does not improve we will have to close the thread. As is, it is very close to useless.
 
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