voltameter
Very Low / TechnicalHighly Technical / Scientific / Historical
Definition
Meaning
A scientific instrument used for measuring the quantity of electricity passed through a circuit, especially by quantifying the chemical effect (like electrolytic decomposition) it produces.
A device, often a type of electrolytic cell, that determines the electric quantity (coulombs) via the electrochemical deposition or gas evolution at an electrode, thus indirectly measuring electrical current over time. Historically significant in early electrochemistry and electrical engineering.
Linguistics
Semantic Notes
This term is now largely archaic in practical use, replaced by modern ammeters and coulombmeters. It is found in historical texts and specific technical discussions of electrolysis. It measures total quantity of electricity, not instantaneous voltage.
Dialectal Variation
British vs American Usage
Differences
No significant difference in meaning or usage; the term is equally rare and technical in both varieties.
Connotations
Historical, precise, experimental.
Frequency
Extremely rare in both dialects, confined to specialised historical or electrochemical contexts.
Vocabulary
Collocations
Grammar
Valency Patterns
The [material, e.g., silver] voltameter measures [quantity of electricity].To determine the charge, they used a [type] voltameter.Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “None”
Usage
Context Usage
Business
Not used.
Academic
Used in historical reviews of physics/chemistry, or specialised papers on electrochemistry.
Everyday
Never used.
Technical
May appear in legacy documentation, metrology standards, or advanced electrochemistry labs discussing fundamental measurements.
Examples
By Part of Speech
adjective
British English
- The voltameter readings were recorded.
- The voltameter method is absolute.
American English
- The voltameter readings were recorded.
- The voltameter method is absolute.
Examples
By CEFR Level
- In the old laboratory, a glass voltameter was used to measure electric current via hydrogen production.
- The experiment required a copper voltameter to determine the total charge passed.
- Faraday's laws of electrolysis can be demonstrated quantitatively using a calibrated silver voltameter.
- The historical discrepancy was resolved by comparing the outputs of a water voltameter and a coulombmeter.
Learning
Memory Aids
Mnemonic
Think VOLTAmeter: 'VOLTA' for Alessandro Volta (electricity pioneer) + 'METER' to measure. But be careful – it doesn't measure volts; it measures electrical quantity, named after Volta.
Conceptual Metaphor
A CHEMICAL ACCOUNTANT: It 'counts' electricity by letting it 'spend' itself to produce a measurable chemical product (like deposited metal).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not confuse with 'voltmeter' (вольтметр). Voltameter is кулонметр or, historically, волътаметр.
- The word structure is similar to Russian 'вольтаметр', but the referent is different from a modern voltmeter.
Common Mistakes
- Confusing it with a 'voltmeter'.
- Using it to refer to a device measuring voltage.
- Assuming it is in common contemporary use.
Practice
Quiz
What does a voltameter primarily measure?
FAQ
Frequently Asked Questions
No, they are completely different. A voltmeter measures electrical potential difference (volts). A voltameter measures the total quantity of electricity (coulombs) via its chemical effects.
Almost exclusively in historical texts on electricity and electrochemistry, or in highly specialised metrology contexts discussing the definition of the ampere.
It is named after Alessandro Volta, a pioneer in electricity. The naming reflects the era of early electrical discovery, not the unit of measurement.
Electronic coulombmeters and integrator circuits, which directly measure charge (coulombs) without requiring chemical processes, are the modern replacements.