Linearized bridge circuitry

Details Linearized bridge circuitry Linearized bridge circuitry

G - Physics

01

K

328/167, 73/72

G01K 7/24 (2006.01) G01K 7/21 (2006.01) G01K 7/25 (2006.01) G06G 7/16 (2006.01)

Patent

CA 1073058

LINEARIZED BRIDGE CIRCUITRY ABSTRACT OF THE DISCLOSURE Where the unknown leg of a bridge is a sensor which presents a resistance that relates to a parameter by a second order polynomial, a negative feedback circuit from the conventional null measurement terminals to a voltage divided point in the balance leg thereof is included to provide a substantially linear relationship between the parameter of the sensor and a ratio including two voltage levels from the feedback circuit. A circuit means for continuously monitoring this ratio of voltages with a counter in recurring cycles for digital display is incorporated with the linearized bridge circuit of this invention in a particular embodiment thereof.

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