Pendulum mass acceleration sensor
US6184764A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 1999 |
| Grant date | Feb 6, 2001 |
| Priority date | — |
| Expiry date | Sep 22, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H35/147
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A bidirectional shock sensor has a housing mounted directly to a printed circuit board. The housing contains a switch or sensor embedded in the housing and is connected by leads to the circuit board. A pendulum sensing mass is suspended from two flexible pendulum arms. The arms come together where they are attached to the housing and constrain the mass to swing along an arc that lies in a plane. A magnet either forms the sensing mass or is mounted to the sensing mass. A reed switch or Giant Magneto-Restrictive (GMR) type sensor is encapsulated within the base of the housing. When a shock causes motion of the sensing mass and the magnet the motion is detected by the sensor or switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.