Measuring and testing – Speed – velocity – or acceleration – Temperature compensator
Patent
1977-09-01
1978-07-11
Gill, James J.
Measuring and testing
Speed, velocity, or acceleration
Temperature compensator
318634, G01P 1508, G01D 1112
Patent
active
040994155
ABSTRACT:
The servo system has a fluid damped moving mass, a pickoff providing a signal indicative of the position of the moving mass, and a torquer disposed to move the mass. A single operational amplifier has a pair of inputs and an output. One input is connected to the pickoff signal and the other is connected to a reference signal. A feedback path extends between the operational amplifier input and output, and includes a temperature sensitive combination in series with a feedback resistor. A basic gain control resistance is connected between the node located intermediate of the temperature sensitive combination and feedback resistor and the reference signal. Basic gain and gain change over a temperature range are independent of interaction therebetween as each is set, and a selected servo system operational characteristic is maintained substantially constant over the temperature range.
REFERENCES:
patent: 3782205 (1974-01-01), Hand
patent: 3813946 (1974-06-01), Robbins et al.
Gill James J.
Systron-Donner Corporation
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