| 摘要 |
Piezoresistive pressure transducer circuitry accommodating transducer variables comprising microminiature pressure transducer having first and second variable resistive elements each having first and second ends, circuitry coupled to the first and second resistive elements of the transducer including third and fourth fixed resistive elements each having a first and second ends, means interconnecting the first ends of the first and second resistive elements, means interconnecting the second ends of the first and third resistive elements, means interconnecting the second ends of the second and fourth resistive elements, means interconnecting the first ends of the third and fourth resistive elements, means for supplying excitation to the first ends of the third and fourth resistive elements, first amplifier means having an input coupled to the means interconnecting the second ends of the first and third resistive elements, second amplifier means having an input coupled to the means interconnecting the second ends of the second and fourth resistive elements. First analog-to-digital converter having an input coupled to the output of the first amplifier means, a second analog-to-digital converter having an input coupled to the output of the second amplifier means, a computer and means coupling the computer to the outputs of the first and second analog-to-digital converters.
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