Electronic measuring instrument that combines several measurement functions in one unit
Analog multimeterDigital multimeter
A multimeter (also known as a volt-ohm-milliammeter, volt-ohmmeter or VOM)[1] is a measuring instrument that can measure multiple electrical properties.[2][3] A typical multimeter can measure voltage, resistance, and current,[4] in which case can be used as a voltmeter, ohmmeter, and ammeter. Some feature the measurement of additional properties such as temperature and capacitance.
Analog multimeters use a microammeter with a moving pointer to display readings.[5] Digital multimeters (DMMs) have numeric displays and have made analog multimeters virtually obsolete as they are cheaper, more precise, and more physically robust than analog multimeters. Meters will typically include probes that temporarily connect the instrument to the device or circuit under test, and offer some intrinsic safety features to protect the operator if the instrument is connected to high voltages that exceed its measurement capabilities.
Multimeters vary in size, features, and price.[6] They can be portable handheld devices or highly-precise bench instruments.[7] Cheap multimeters can cost under US$10, while laboratory-grade models with certified calibration can cost over US$5,000.
Multimeters are used in diagnostic operations to verify the correct operation of a circuit or to test passive components for values in tolerance with their specifications.
^Silver, H. Ward (2008). The ARRL Extra Class License Manual for Ham Radio. American Radio Relay League. pp. 6–59. ISBN 978-0-87259-135-6.
^Team, YCT Expert. 2024-25 RRB JE Stage-II Electronics & Allied Engineering Solved Papers. Youth Competition Times. p. 318.
^Experts, Disha. Handbook to SSC JE Electrical. Disha Publications. p. 73.
^SOLANKI, CHETAN SINGH (11 January 2013). SOLAR PHOTOVOLTAIC TECHNOLOGY AND SYSTEMS: A Manual for Technicians, Trainers and Engineers. PHI Learning Pvt. Ltd. p. 13. ISBN 978-81-203-4711-3.
^Experts, Disha (8 March 2018). Basic Science & Engineering for Indian Railways (RRB) Assistant Loco Pilot Exam 2018 Stage II. Disha Publications. p. 37. ISBN 978-93-87421-51-6.
^Kularatna, Nihal (2003). Digital and Analogue Instrumentation: Testing and Measurement. IET. p. 126. ISBN 978-0-85296-999-1.
^Electronic Engineering. Morgan-Grampian. 1984. p. 117.
A multimeter (also known as a volt-ohm-milliammeter, volt-ohmmeter or VOM) is a measuring instrument that can measure multiple electrical properties. A...
Galvanometer or Milliammeter (Measures current) Multimeter e.g., VOM (Volt-Ohm-Milliammeter) or DMM (Digital Multimeter) (Measures all of the above) LCR meter...
often used with oscilloscopes, and with high-end computerized digital multimeters, however, they are becoming common place for more general use. Resembling...
usually equipped to also measure current and resistance in the form of a multimeter are standard test instruments used in electrical and electronics work...
laboratory power supply units, while sheathed banana plugs are common on multimeter probe leads. Invention of the plug is claimed by two entities: The Hirschmann...
relationship I = P/V, and thus 1 A = 1 W/V. Current can be measured by a multimeter, a device that can measure electrical voltage, current, and resistance...
which tend to be of high capacitance and to be subject to poor leakage. A multimeter in a resistance range can detect a short-circuited capacitor (very low...
continuity) Audible continuity buzzers or beepers are built into some models of multimeter, and the continuity setting is normally shared with the ohmmeter setting...
log/antilog techniques. https://meterreviews.com/best-fluke-multimeter/ A list of digital multimeters having true rms feature in them. Kurt Bergmann: Elektrische...
AVOmeter is a British trademark for a line of multimeters and electrical measuring instruments; the brand is now owned by the Megger Group Limited. The...
offered by a circuit or component to the flow of electric current). Multimeters also function as ohmmeters when in resistance-measuring mode. An ohmmeter...
various automated test and measurement instruments, such as digital multimeters and logic analyzers. They developed the HP Interface Bus (HP-IB) to enable...
Connecting it to test equipment, for example, an oscilloscope or a benchtop multimeter, may ground the circuit. Electrical isolation is considered to be particularly...
incarnation DMM Wales, a Welsh manufacturer of rock-climbing equipment Digital multimeter, a multi-functional electronic measuring instrument Digital Molecular...
"open". Devices that can be used to perform continuity tests include multimeters which measure current and specialized continuity testers which are cheaper...
instrument-specific commands. Commands to control the same class of instrument, e.g., multimeters, would vary between manufacturers and even models. The United States...
amplifiers, and for measurement of voltages. A Wheatstone bridge and a multimeter both include voltage dividers. A potentiometer is used as a variable voltage...
ESR and out-of-circuit capacitance. A standard (DC) milliohmmeter or multimeter cannot be used to measure ESR, because a steady direct current cannot...
they are often difficult to probe as the impedance of an oscilloscope or multimeter can heavily affect the signal or voltage on the node. High impedance signal...
11905459J. doi:10.1073/pnas.2105459119. PMC 8764671. PMID 34992136. "Multimeter/LCR Meter tweezers". advancedevices.com. Archived from the original on...
resistor can be measured with an ohmmeter, which may be one function of a multimeter. Usually, probes on the ends of test leads connect to the resistor. A...
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