| 摘要 |
<p>Telescoping coil systems 14 and 16, respectively, engage a Z-shaped balance beam 12 at opposite arms 18 and 20 thereof said beam being mounted centrally by a flexural pivot suspension 10. A surface 26 is provided on the arm 18 and forms a nozzle and baffle plate system with nozzle 22. The torque caused by the pneumatic pressure acting on the surface of nozzle 22 is compensated for by a torque exerted by two telescoping coil systems 14 and 16 when an electrical current is passed through. Thereby the pressure at an output 28 is proportional to the electrical current. A flexural pivot suspension provided for the balance beam includes a pair of crossed baffle springs on each side of the balance beam. Each leaf spring has one end attached to the balance beam and the other end attached to a bearing portion.</p> |
