Remote conductivity sensor using square wave excitation
US4825168A · kind A · utility
81Cited by
5References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 30, 1986 |
| Grant date | Apr 25, 1989 |
| Priority date | — |
| Expiry date | May 30, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M1/1607
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A liquid conductivity sensor which features simply and inexpensively driving the excitation transformer of a two-transformer/fluid-loop remote conductivity sensor with a square wave excitation signal provided by a digital timer and a flip-flop. Also disclosed is using an electrodeless conductivity sensor to sense conductivity of dialysate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.