A Constant Current Source for Manganin Gauge Transducers

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Abstract
The piezoresistive property of manganin has previously been exploited in producing a pressure gauge for shock wave studies. This article describes a constant current supply for the manganin gauge that utilizes an inductor as the essential constant current component. It is shown that the assumption of constant current can be made with negligible error. A termination technique is described which eliminates the gauge shunting current and hence simplifies data reduction.

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