Servo amplifier for an electrically damped accelerometer
First Claim
1. In combination with a position detector for producing electrical signals corresponding to positions of a torque coil subject to movements resulting from acceleration forces,a servo amplifier system for producing error signals for application to said torque coil to counteract the movements resulting from said acceleration forces, comprising:
- a. a first amplifier having input and output circuits;
b. said torque coil being included in said output circuit of said first amplifier;
c. means for applying said electrical signals from said position detector to said input circuit of said first amplifier;
d. a second amplifier having an input circuit and a low impedance output circuit;
e. a load element in said input circuit of said second amplifier connected to said torque coil to develop a voltage thereacross corresponding to the induced current through said torque coil resulting from movement thereon;
f. a feedback network connected from the output circuit of said second amplifier to the input circuit of said first amplifier;
g. utilization means connected to the output circuit of said second amplifier.
1 Assignment
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Accused Products
Abstract
A servo amplifier system for an accelerometer includes a torque coil. A torque coil is included in the output circuit of a first amplifier. A position sensor circuit develops a signal corresponding to the position of the coil which is applied to the input circuit of the first amplifier. An element, which may be a resistor, senses the current through to the coil and produces a voltage which is applied to a second amplifier having a low impedance output circuit. The output signal from the second amplifier is fed back to the input circuit of the first amplifier. Means are associated with the second amplifier to comply with the scaling and bandwidth requirements of the system.
51 Citations
9 Claims
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1. In combination with a position detector for producing electrical signals corresponding to positions of a torque coil subject to movements resulting from acceleration forces,
a servo amplifier system for producing error signals for application to said torque coil to counteract the movements resulting from said acceleration forces, comprising: -
a. a first amplifier having input and output circuits; b. said torque coil being included in said output circuit of said first amplifier; c. means for applying said electrical signals from said position detector to said input circuit of said first amplifier; d. a second amplifier having an input circuit and a low impedance output circuit; e. a load element in said input circuit of said second amplifier connected to said torque coil to develop a voltage thereacross corresponding to the induced current through said torque coil resulting from movement thereon; f. a feedback network connected from the output circuit of said second amplifier to the input circuit of said first amplifier; g. utilization means connected to the output circuit of said second amplifier. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification