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.
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
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