Apparatus for measuring variable quantities
US3955070A · kind A · utility
15Cited by
7References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 1, 1974 |
| Grant date | May 4, 1976 |
| Priority date | — |
| Expiry date | May 1, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L19/083
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In an apparatus for measuring variable quantities such as fluid pressure, stress and strain there are provided an electric pulse generator for generating an electric pulse during a measuring interval in which the quantity to be measured exceeds a preset value, a counter for counting the number of pulses and a time measuring apparatus for cumulatively adding the measuring intervals. By providing a plurality of sets of the elements described above responsive to different set values, the variation of the quantity over a long period of time can be precisely supervised.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.