发明名称 |
Proximity switch for detecting a magnetic inductive field |
摘要 |
An inductive proximity switch comprises a high-frequency oscillator, an oscillator coil and an oscillator core. An analyzing circuit detects the inclination amplitude depending on the degree of core saturation. The analyzing circuit triggers a switching process when a certain threshold value of amplitude is reached. The core consists, for example, of ferrite. A yoke-like body is assigned to the core. The use of such a soft-magnetic material for the yoke-like body, allows the construction of smaller sensors with a higher sensitivity and a more cost-advantageous production. Their permeability curve in relation with one quadrant of the coordinate system is clearaly S-shaped.
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申请公布号 |
US4994738(A) |
申请公布日期 |
1991.02.19 |
申请号 |
US19890297489 |
申请日期 |
1989.01.17 |
申请人 |
SOYCK, GERNO;DAHLHEIMER, PETER |
发明人 |
SOYCK, GERNO;DAHLHEIMER, PETER |
分类号 |
F16B15/00;G01V3/10;H03K17/95 |
主分类号 |
F16B15/00 |
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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