Definitions for OHMMeter
ˈoʊmˌmi tərohm·me·ter

Princeton's WordNetRate this definition:0.0 / 0 votes

1. ohmmeternoun

   a meter for measuring electrical resistance in ohms

WiktionaryRate this definition:0.0 / 0 votes

1. ohmmeternoun

   A portable device for measuring relatively small values of electrical resistance.

WikipediaRate this definition:0.0 / 0 votes

1. Ohmmeter

   An ohmmeter is an electrical instrument that measures electrical resistance (the opposition offered by a circuit or component to the flow of electric current). Multimeters also function as ohmmeters when in resistance-measuring mode. An ohmmeter applies current to the circuit or component whose resistance is to be measured. It then measures the resulting voltage and calculates the resistance using Ohm’s law V = I R {\displaystyle V=IR} . An ohmmeter should not be connected to a circuit or component that is carrying a current or is connected to a power source. Power should be disconnected before connecting the ohmmeter. Ohmmeters can be either connected in series or parallel based on requirements (whether resistance being measured is part of circuit or is a shunt resistance.) Micro-ohmmeters (microhmmeter or micro ohmmeter) make measurements of low resistance. Megohmmeters (also a trademarked device Megger) measure large values of resistance. The unit of measurement for resistance is the ohm (Ω).

ChatGPTRate this definition:0.0 / 0 votes

1. ohmmeter

   An ohmmeter is an electronic instrument used to measure electrical resistance, the opposition to an electric current, of a component or a circuit. The unit of measurement it provides is in ohms. It is commonly included within a multimeter, a device that can measure not just resistance but voltage and current as well.

WikidataRate this definition:0.0 / 0 votes

1. Ohmmeter

   An ohmmeter is an electrical instrument that measures electrical resistance, the opposition to an electric current. Micro-ohmmeters make low resistance measurements. Megohmmeters measure large values of resistance. The unit of measurement for resistance is ohms. The first ohmmeters were based on a type of meter movement known as a 'ratiometer'. These were similar to the galvanometer type movement encountered in later instruments, but instead of hairsprings to supply a restoring force they used conducting 'ligaments' instead. These provided no net rotational force to the movement. Also, the movement was wound with two coils. One was connected via a series resistor to the battery supply. The second was connected to the same battery supply via a second resistor and the resistor under test. The indication on the meter was proportional to the ratio of the currents through the two coils. This ratio was determined by the magnitude of the resistor under test. The advantages of this arrangement were twofold. First, the indication of the resistance was completely independent of the battery voltage and no zero adjustment was required. Second, although the resistance scale was non linear, the scale remained correct over the full deflection range. By interchanging the two coils a second range was provided. This scale was reversed compared to the first. A feature of this type of instrument was that it would continue to indicate a random resistance value once the test leads were disconnected. Ohmmeters of this type only ever measured resistance as they could not easily be incorporated into a multimeter design. Insulation testers that relied on a hand cranked generator operated on the same principle. This ensured that the indication was wholly independent of the voltage actually produced.

The Standard Electrical DictionaryRate this definition:0.0 / 0 votes

1. Ohmmeter

   An instrument for measuring directly the resistance of a conductor or of any part of a circuit through which a strong current is passing.  It is the invention of Prof. W. E. Ayrton. It contains two fixed coils at right angles to each other acting on the same needle of soft iron. One coil is of thick wire and is placed in series with the resistance to be measured. The other is of very thin wire and is placed in parallel with the same resistance. One wire acts by the total current, the other by the potential difference between the ends of the resistance. The action on the soft iron needle is due to the ratio of potential difference to total currents, or to the resistance itself. By properly designing and proportioning the coils the angular deflections of the needle are made proportional to the resistance. In use the thick wire may be kept permanently in circuit. On connecting the binding posts of the thin wire coil to any two parts of the circuit its resistance is at once given by the deflection of the needle. When no current is passing the needle rests in any position. A current in the thick coil brings it to zero. A current simultaneously passing through the thin high resistance coil brings about the deflection. The instrument is a commercial rather than a scientific one.

Matched Categories

1. • Meter

Anagrams for OHMMeter »

1. mhometer

How to pronounce OHMMeter?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say OHMMeter in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of OHMMeter in Chaldean Numerology is: 9

2. Pythagorean Numerology

   The numerical value of OHMMeter in Pythagorean Numerology is: 7

Popularity rank by frequency of use

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=OHMMeter
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Ohmmeter
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Ohmmeter
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=OHMMeter
6. ^ The Standard Electrical Dictionary
   https://www.gutenberg.org/cache/epub/26535/pg26535-images.html#:~:text=OHMMeter