Signal reading system such as for remote reading of meters
US4683472A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 5, 1982 |
| Grant date | Jul 28, 1987 |
| Priority date | — |
| Expiry date | Aug 5, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R11/16
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In the disclosed system, recurring signals, such as from a watt-hour meter or other type of meter, are registered, by sensing the signals, converting the signals to mechanical motions, and applying them to a mechanical register so that the register accumulates the motions sensed by the amplifier and indicates a value representative of the accumulated total of the signals. According to one embodiment of the invention, a sensor senses the signals formed by gaps in the rotating disc of a watt-hour meter and an amplifier drives a stepping motor on the basis of the signals. The stepping motor advances an odometer whose non-volatile output can be read visually or scanned electronically over a telephone line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.