Servo-type capsule-equipped instrument
AssigneeTokyo Aircraft Instrument Co., Ltd.
InventorKazushi Nakahama
Life of this patent
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Abstract
A servo instrument, particularly a servo altimeter, with a minimum of display error. The instrument comprises a capsule assembly, a sector adapted for rotation corresponding to the displacement of the capsule assembly, a photosensor for producing an output showing its angular position relative to the sector, a support for rotating the photosensor while supporting it adjustably in a direction of tracing the sector, a cam adapted to make the amount of the adjustment of the photosensor variable by the position of the support, a motor, means for generating a signal showing the rotating positional angle of the motor, and an amplifier for amplifying the output of the photosensor and driving the motor so as to maintain the output of the photosensor constant.
Claims11
A servo-type capsule-equipped instrument having an error correcting mechanism, said instrument comprising
- at least one capsule,
- a sector adapted for rotation corresponding to the displacement of the capsule,
- a photosensor for producing an output corresponding to its angular position relative to the sector,
- a support for rotating the photosensor, said photosensor being supported adjustably by said support for tracing the sector,
- a cam adapted to make the amount of the adjustment of the photosensor variable in accordance with the position of the support,
- a motor having a shaft coupled to said support for the displacement thereof,
- means for generating a signal corresponding to the rotating positional angle of the shaft of said motor, and
- an amplifier having its input coupled to said photosensor and its output coupled to said motor, said amplifier amplifying the output of the photosensor and driving the motor so as to maintain the output of the photosensor constant.
A servo-type capsule-equipped instrument having an error correcting mechanism, said instrument comprising
- at least one capsule,
- a sector adapted for rotation corresponding to the displacement of the capsule,
- a photosensor for sensing its angular position relative to the sector,
- a support for supporting the photosensor adjustably in a tracing direction, said support rotating said sensor,
- a cam fixed so as to make the amount of the adjustment of the photosensor variable in accordance with the position of the support,
- a motor having a shaft coupled to said support for the displacement thereof,
- a display means for indicating the rotating positional angle of the shaft of said motor, and
- an amplifier having its input coupled to said photosensor and its output coupled to said motor, said amplifier amplifying an output of the photosensor and driving the motor so as to maintain the output of the photosensor constant.
Dependencies are inferred from the claim text.