| 摘要 |
1,104,525. Variable resistors. GENERAL PRECISION SYSTEMS. 22 July, 1966 [5 Oct., 1965], No. 33119/66. Heading H1S. [Also in Division G1] A variable resistor comprises a sheet of photoconductive material 175 having disposed thereon and parallel to each other a resistance coil 164, preferably in the form of a high resistance strip and a conductor bar 168. The resistor is described as being used for determining the angular precession of a gyroscope rotor about a desired axis. Light from a lamp 154 is focused in the form of a narrow slit beam on the polished underside of the rotor and is then reflected on to the sheet 175. The beam of light electrically connects the coil 164 and bar 168 and since the portion of the reflected light beam depends on the tilt of the rotor about the desired axis, the resistor will give an output dependent on the tilt. |
