Device for the monitoring of peak values of a nonperiodic phenomenon with a low recurrence rate
US4376266A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 10, 1980 |
| Grant date | Mar 8, 1983 |
| Priority date | — |
| Expiry date | Oct 10, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/379
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed is a device for the measurement of peak values of a nonperiodic phenomenon having a low recurrence rate. A voltage comparator has one input connected to the potential U.sub.e to be measured with its output connected through a rectifying circuit to a parallel RC circuit. The output of the rectifying circuit is also connected to a high input impedance circuit whose output which is indicative of the peak value measured is connected back to the other of the comparators inputs. The time constant of the parallel RC circuit is an inverse function of the error included in the output of the high input impedance circuit during an interval separating two peak values. The invention is particularly useful to indicate very accurately the state of discharge of lead-acid power batteries.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.