About: Galvanometer   Sponge Permalink

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A galvanometer is an instrument used to measure the strength and direction of small electric currents using a coil in a magnetic field that moves a pointer or light.

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  • Galvanometer
  • Galvanometer
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  • A galvanometer is an instrument used to measure the strength and direction of small electric currents using a coil in a magnetic field that moves a pointer or light.
  • A galvanometer is a device for detecting small amounts of electrical current. They were the first type of instrument used to measure the electrical activity of the heart and brain, although they have been completely replaced by the EKG and the EEG.
  • A galvanometer is a type of sensitive ammeter or digital multimeter (DMM): an instrument for detecting electric current. It is an analog electromechanical actuator that produces a rotary deflection of some type of pointer in response to electric current through its coil in a magnetic field.
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abstract
  • A galvanometer is an instrument used to measure the strength and direction of small electric currents using a coil in a magnetic field that moves a pointer or light.
  • A galvanometer is a type of sensitive ammeter or digital multimeter (DMM): an instrument for detecting electric current. It is an analog electromechanical actuator that produces a rotary deflection of some type of pointer in response to electric current through its coil in a magnetic field. Galvanometers were the first instruments used to detect and measure electric currents. Sensitive galvanometers were used to detect signals from long submarine cables, and to discover the electrical activity of the heart and brain. Some galvanometers use a solid pointer on a scale to show measurements; other very sensitive types use a miniature mirror and a beam of light to provide mechanical amplification of low-level signals. Initially a laboratory instrument relying on the Earth's own magnetic field to provide restoring force for the pointer, galvanometers were developed into compact, rugged, sensitive portable instruments essential to the development of electrotechnology. A type of galvanometer that records measurements permanently is the chart recorder. The term has expanded to include use of the same mechanism in recording, positioning, and servomechanism equipment.
  • A galvanometer is a device for detecting small amounts of electrical current. They were the first type of instrument used to measure the electrical activity of the heart and brain, although they have been completely replaced by the EKG and the EEG.
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