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Strain Gauge Circuits Last Updated on:
Friday, March 12, 2010 12:07 PM
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electronic schematics, designs for engineers, hobbyists, students & inventors:
A Worked Stepping Motor Example - Perhaps some of the most commonly available
stepping motors, for the experimenter, are the head positioning motors from old
diskette drives. These can be found at electronics swap meets, in computer surplus
outlets, and even in trash dumpsters. In addition to a stepper, a typical full-height
5.25 inch disk drive includes a 12 volt DC motor with tachometer....(circuit design
added 09/08)
Accurately measure resistance with less than perfect components - 11/11/04 EDN-Design
Ideas: For transducers, such as strain gauges or thermistors, you must
accurately and inexpensively measure resistance using circuitry built with imperfect
components and in which gain and offset errors can significantly limit the accuracy of
ohmic measurements. The right circuit topology makes it possible to eliminate most
error terms while measuring ohms, leaving the accuracy to be determined by
jus.....(design idea added 11/04)
