发明名称 |
INTEGRATED AUTOMATIC CONTROL FOR ULTRASONIC PROXIMITY SWITCHES |
摘要 |
The transmitting pulse required to operate an ultrasonic proximity switch is usually generated externally in separate evaluation electronics. This requires additional circuitry, either analog or digital circuits, or a microprocessor and associated software. In the case of ultrasonic proximity switches, which have an integrated circuit with transmitting oscillator, the generation of the transmitting pulse is performed by additional means provided on the integrated circuit for generating a transmitting clock pulse. By means of a control signal, it is possible to select between the operation with this transmitting clock pulse and a transmitting clock pulse supplied externally by the evaluation electronics.
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申请公布号 |
US5144593(A) |
申请公布日期 |
1992.09.01 |
申请号 |
US19910788037 |
申请日期 |
1991.11.05 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
FORSTER, ALFRED;SCHWARZ, ROBERT |
分类号 |
G01S7/524;G01S7/526;G01S15/04;H03K17/945 |
主分类号 |
G01S7/524 |
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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