Electrical circuit for electrochemical measurement and measurement device
US11536690B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 25, 2019 |
| Grant date | Dec 27, 2022 |
| Priority date | — |
| Expiry date | Aug 13, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/48707
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Provided is an electrical circuit for electrochemical measurement of a solution, said electrical circuit comprising: a voltage generation circuit; an operational amplifier that has an output (OUT), a non-inverting input (+IN), and an inverting input (−IN), wherein the output (OUT) is connected to a counter electrode (CE) in contact with the solution, the inverting input (−IN) is connected to a reference electrode (RE) in contact with the solution, and the non-inverting input (+IN) is connected to the voltage generation circuit; a capacitor that is connected between the output (OUT) and inverting input (−IN) and has a capacitance of 1 μF or greater; and a current measurement circuit that is connected to a working electrode (WE) in contact with the solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.