Multiplexed sensor array
US6494616B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 4, 2000 |
| Grant date | Dec 17, 2002 |
| Priority date | — |
| Expiry date | Aug 4, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D3/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensor array includes a plurality of sensors connected to two or more groups of wires such that individual sensors can be addressed. No two sensors are connected to the same two wires. The groups of wires are connected to multiplexers or the like to address particular wires connecting a unique sensor. Dramatically improved accuracy is obtained by connecting rectifiers in series with the sensors to significantly reduce reverse current through a sensor that can lead to significant errors. In some preferred embodiments, the array includes a plurality of temperature sensors, especially for use in measuring temperature at different depths in a body of water
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.