Data record `instr.low-resistance-ohmmeter.four-terminal-source`

Verified 2026-10-13 Confidence: High

A reference on impedance measurement published by the University of California, Berkeley physics laboratory describes the four-terminal technique as passing current through one pair of leads and measuring voltage on the other pair, which removes the error caused by the series impedance of the leads, and describes it as suited to low impedances.

Provenance. Where this record comes from and where it is used: the cited source, the record itself and the entry that cites it.

Provenance: the chain from source to entry.
Step	Item	Detail
Source	UC Berkeley Physics Experimentation Lab reference 10	Publisher catalog, clause Four terminal measurements
Data record	instr.low-resistance-ohmmeter.four-terminal-source	Verified 2026-10-13
Entry	Low-resistance ohmmeter	1 revision

Subject: Low-resistance ohmmeter (Instrument classes)
Kind: Instrument fact
Source: UC Berkeley Physics Experimentation Lab reference 10, 2001 edition, clause Four terminal measurements, Four Wire Measurement (Appendix A, Why So Many Terminals? Understanding impedance measurement techniques), The Regents of the University of California. Publisher page

History

Every recorded change to this data record, oldest first.
Date	Change
2026-10-13	created
2026-10-13	reviewed

Cite this page

Cite the governing standard for the fact itself; cite this page as the finding aid.

"Data record instr.low-resistance-ohmmeter.four-terminal-source." Test Instrument Reference. 2026-10-13. https://www.testinstrumentreference.com/data/instr.low-resistance-ohmmeter.four-terminal-source/.

Test Instrument Reference, Data record instr.low-resistance-ohmmeter.four-terminal-source (Oct. 13, 2026), https://www.testinstrumentreference.com/data/instr.low-resistance-ohmmeter.four-terminal-source/.

@misc{etr-data-instr-low-resistance-ohmmeter-four-terminal-source,
  title = {Data record instr.low-resistance-ohmmeter.four-terminal-source},
  howpublished = {\url{https://www.testinstrumentreference.com/data/instr.low-resistance-ohmmeter.four-terminal-source/}},
  organization = {Test Instrument Reference},
  publisher = {Test Instrument Reference},
  year = {2026},
  note = {last substantive change 2026-10-13}
}

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