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Safety-relevant sensor system for the self test and monitoring of this sensor system by monitoring a signal symmetry
Safety-relevant sensor system for the self test and monitoring of this sensor system by monitoring a signal symmetry
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机译:与安全相关的传感器系统,用于通过监视信号对称性进行自我测试和监视
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摘要
It is an automatic test liquids sensor system (ss) is proposed, the four states, an operating state and can have three test states. Stimulated in the third state, a digital signal generation (dso) directly to the digital input circuit (dsi) with test signals as a result of which the signal chain can be checked. In the second basic cells stimulates the digital signal generation (dso) the analog signal chain (dr, as) and the digital input circuit (dsi) with test signals as a result of this signal chain can be checked. In the third basic cells stimulates the digital signal generation (dso) the analog signal chain (dr, as), the sensor part of the apparatus (tr) (typically a ultrasonic transducer 20) and the digital input circuit (dsi) with test signals as a result of this signal chain tested and to the parameter for maintenance can be monitored. In the operating state stimulates the digital signal generation (dso) the analog signal chain (dr, as), the sensor part of the apparatus (tr) (typically a ultrasonic transducer 20) and the digital input circuit (dsi) with measurement signals in which case the signal chain on parameters for maintenance can be monitored. Among other things, monitors the signal symmetry.n="174"
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