发明名称 |
Sensitive electrical to mechanical transducer. |
摘要 |
<p>A transducer having a cross field polarized permanent magnet mounted for slight pivotal movement within an annular coil winding. The magnet comprises neodymium-iron-boron to provide a compact, lightweight, low inertia and high intensity magnetic field. A magnetic field generated by current in the coil winding influences the permanent magnet to pivot slightly about a horizontal axis and rotate a yoke structure to produce a mechanical output of the transducer. In the preferred embodiment of the invention, the yoke is attached to a spring arm for controlling escape gas pressure from a nozzle to thereby control the pressure of a gas stream.</p> |
申请公布号 |
EP0375093(A2) |
申请公布日期 |
1990.06.27 |
申请号 |
EP19890250120 |
申请日期 |
1989.12.20 |
申请人 |
DRESSER INDUSTRIES, INC. |
发明人 |
PRESCOTT, ROBERT CLAUDE;ROBINSON, ROBERT J. |
分类号 |
H01F7/02;F15B5/00;G05D16/20;H01F7/08;H01F7/14;H02K33/00;H02K33/16 |
主分类号 |
H01F7/02 |
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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