High-precision impedance measurement device
US11899073B2 · kind B2 · utility
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3Claims
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Key dates
| Filing date | Sep 22, 2020 |
| Grant date | Feb 13, 2024 |
| Priority date | — |
| Expiry date | Dec 22, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/114
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An impedance measurement device of the present disclosure includes: an electrochemical energy device; an amplifier connected to each connection terminal of the electrochemical energy device and configured to amplify a signal introduced into a wiring; and a main board configured to receive the signal from the amplifier and measure an impedance. Accordingly, the present invention has advantages in that high resistance to electromagnetic interference may be achieved by disposing a preamplifier close to a terminal of an electrochemical energy device to amplify only the signal without amplifying a noise introduced into a wiring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.