Moisture meter
US6747463B2 · kind B2 · utility
11Cited by
9References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2002 |
| Grant date | Jun 8, 2004 |
| Priority date | — |
| Expiry date | Aug 6, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/46
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A moisture meter (1) has a capacitive sensing circuit (11-16) feeding into a digital control circuit having a microcontroller (17). Input buttons (20, 22, 23) allow a user to select a material being surveyed. They also allow the user to instruct the meter (1) to hold a particular reading. This allows it to be more conveniently read. The output of the digital control circuit is fed via an ADC (18) to a moving coil meter (4). This provides an easy-to-read display in which trends as the meter (1) is moved across a surface are easy to track.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.