Dynamic vertical angle sensor
US3945128A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 30, 1974 |
| Grant date | Mar 23, 1976 |
| Priority date | — |
| Expiry date | Aug 30, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C9/08
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A dynamic vertical angle sensor operable on a vehicle that isolates the output device from the vehicle movement in that the rotor of the output data device is not directly coupled to the sensor mounting frame. The output rotor is driven by a low pass servo that is slaved to a level sensor, which in itself is driven by the same servo until it is nulled. The level sensor which may be a pendulum, is mounted free from the output device so as to rotate independently therefrom, thus allowing the error signal to be picked off of the pendulum mounting and applied to the low pass servo system. Because a low pass filter is in series with the servo drive, high frequency disturbances are greatly attenuated in the output device, to effectively provide a DC average angle signal that is required, for example, in a tank system, rather than instantaneous values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.