发明名称 |
EXCITATION CIRCUIT FOR DC SENSORS |
摘要 |
A circuit for exciting at least one DC sensor is provided in which the circuit has a digital regulation controller connected to a main system and to a regulation loop. The main system has a DAC connected to the sensor via a non-inverted amplified path and via an inverted amplified path in order to send sensor excitation signals including a DC component in differential mode. The regulation system includes an ADC connected to the amplified paths. The circuit includes a monitoring system that is connected to the controller in parallel with the converter in order to send signals as a function of an AC component of the signals taken from the amplified paths. The digital controller is arranged to inject a sinewave in common mode into the excitation signals and to analyze signals output by the monitoring system and signals output by the ADC. |
申请公布号 |
EP2452162(A2) |
申请公布日期 |
2012.05.16 |
申请号 |
EP20100728673 |
申请日期 |
2010.07.05 |
申请人 |
SAGEM DEFENSE SECURITE |
发明人 |
GENESTE, NICOLAS;ESTEVE, GWENAEL |
分类号 |
G01D18/00;B64D43/00;G06F1/28;H04B3/02;H04B3/46 |
主分类号 |
G01D18/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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