Piezoelectric acceleration pick-up
US4326143A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 13, 1978 |
| Grant date | Apr 20, 1982 |
| Priority date | — |
| Expiry date | Oct 13, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P15/08
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to an acceleration pick-up which can be produced at favorable cost in large numbers, for which new constructional means are used. The apparatus consists of a mushroom-shaped support screw (6,56), which is inserted directly in the synthetic material housing (8) of the measuring device and which mounts and retains both the mass sensor arrangement (1, 2, 3, 4), the printed circuit board (15) as well as the housing cover (9). In the immediate vicinity of the mushroom-shaped head (7) at least one flat holding magnet (30) is likewise inserted directly in the synthetic material housing (8). In order to screen the sensor arrangement against disturbance effects, the inside of the synthetic material housing is coated with a conducting metal layer (26,28,66) for inner screening, which is connected to the screening of the connecting cable piezoelectric, piezoresistive, inductive or other systems can be used as sensor elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.