Clearance measurement system
US5723980A · kind A · utility
19Cited by
26References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1995 |
| Grant date | Mar 3, 1998 |
| Priority date | — |
| Expiry date | Jun 7, 2015 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01D21/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The measuring device of the invention uses a capacitor polarized by a continuous voltage and conditioned by a continuous charge amplifier, this charge amplifier having a high-band filter structure, preferably of the second order. The technology of the capacitor and the linking cable is coaxial. The tuning of the chain measurement is effected theoretically without needing standardization.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.