Balance with an electrostatic charge build-up sensor
US7323645B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2007 |
| Grant date | Jan 29, 2008 |
| Priority date | — |
| Expiry date | Jan 26, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01G23/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A balance (1, 101) has a weighing pan (4, 104) for receiving a load (5, 6, 25) to be weighed, and an electronic weighing module (27) which includes a measuring unit (28). The balance is equipped with an electrostatic sensor (10) which is arranged so that accumulated electrostatic charges which reside on the load can be detected as the load is placed or about to be placed on the weighing pan. The balance is operated by using the electrostatic sensor to detect electrostatic charges, transferring information on a value characterizing the magnitude of the detected electrostatic charges to the measuring unit, comparing the value against a threshold value, and triggering an action of the electronic weighing module based on the comparison.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.