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CLOSED-LOOP INTERFEROMETRIC SENSOR USING LOOP GAIN FOR DETERMINING INTERFERENCE CONTRAST
CLOSED-LOOP INTERFEROMETRIC SENSOR USING LOOP GAIN FOR DETERMINING INTERFERENCE CONTRAST
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机译:使用环路增益确定干扰对比度的闭环干涉仪传感器
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摘要
In order to measure the contrast of interference in an interference-based, closed-loop, phase-modulating optical sensor device, the gain of the feedback loop in a feedback controller (12) is evaluated. This gain is found to be a measure for the contrast. The contrast evaluated in this way can e.g. be used for period-disambiguation when determining the measurand of the sensor device. The sensor device can e.g. be a high-voltage sensor or a current sensor.
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