Digital servo indicator
US4567429A · kind A · utility
2Cited by
4References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 2, 1982 |
| Grant date | Jan 28, 1986 |
| Priority date | — |
| Expiry date | Feb 2, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R17/06
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An improved digital servo indicator of the continuous null-balance potentiometric type is disclosed which includes a microcomputer to provide a digital readout of the measured results in the desired engineering unit, or to use the readout in further calculations as desired. The indicator includes a digital-to-analog conversion means using a cascading series of circuits each having a precision resistance element and a pair of MOSFETs for selectively connecting a constant reference voltage to the output through the resistance element to produce the desired analog output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.