Title :
Bridge-to-computer data acquisition system with feedback nulling
Author :
Johnson, Curtis D. ; Chen, Chi
Author_Institution :
Coll. of Technol., Houston Univ., TX, USA
fDate :
6/1/1990 12:00:00 AM
Abstract :
A system is presented with which a computer can be used to provide electronic feedback nulling of a Wheatstone bridge measurement system used for data acquisition. This system provides compensation for drifts away from null resulting from the measurement setup or amplifier drifts with time or temperature. An example of the system in the case of a strain gauge bridge used with a cantilever beam is described
Keywords :
bridge instruments; computerised instrumentation; data acquisition; feedback; Wheatstone bridge measurement system; cantilever beam; compensation; data acquisition; drifts; feedback nulling; strain gauge bridge; Analog-digital conversion; Bridge circuits; Data acquisition; Electrical resistance measurement; Feedback; Gain measurement; Resistors; Temperature; Time measurement; Voltage;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
