Direct reading temperature measuring bridge circuit

Details Direct reading temperature measuring bridge circuit Direct reading temperature measuring bridge circuit

G - Physics

01

K

324/68, 73/72

G01K 7/24 (2006.01)

Patent

CA 1039971

ABSTRACT OF THE DISCLOSURE An a.c.-fed temperature measuring bridge in the form of a balanced Wheatstone bridge containing a temperature sensor R(x) which, depending upon. the measured tempera- ture x°C,generates an output voltage which is balanced by a variable voltage y provided by ohmic ratio arms in such a way that if the sensor R(x) has a non-linear characteristic, there will still be a linear relation- ship such that x = const.?y, the inventive feature being that the fixed ratio arms of the balanced Wheatstone bridge are formed by an inductive potential divider and that for correcting the non-linearity of the sensor the voltage across the variable ohmic ratio arms is a pre- determined ratio Image of the voltage feeding the bridge.

221779

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