发明名称 |
Diagnostic device for detecting short circuits or line interruptions in an inductive sensor |
摘要 |
A symmetrical voltage divider whose tap is supplied with a reference voltage via a resistor is connected between the terminals of an inductive sensor. A diagnostic voltage is applied to the tap. Using evaluation devices, the diagnostic voltage is compared with two threshold values in a stationary state, and then sampled in the operational state, and a difference is calculated from the largest and smallest sampled, values and is compared with a third threshold value. Short circuits or line interruptions are detected from the comparison result and are displayed.
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申请公布号 |
US6456085(B1) |
申请公布日期 |
2002.09.24 |
申请号 |
US20000577062 |
申请日期 |
2000.05.22 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
DIETL FRANZ;FISCH ALFONS;VOGEL FRANK;PUNZMANN HORST |
分类号 |
G01R31/28;(IPC1-7):G01R31/14 |
主分类号 |
G01R31/28 |
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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