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mV/V – Millivolts per Volt Output Signal

It is an electrical signal which is proportional to the applied excitation voltage and is also referred to as a ratio-metric or strain gauge output.

This type of output signal is produced by a wheatstone bridge strain gauge transducer which converts imbalance in bridge resistance generated by an applied force / load to a voltage drop between two opposite corners of the wheatstone bridge circuit.

For a given fixed force, load or pressure, the voltage drop across two opposite corners of the circuit is linearly proportional to the voltage supplied between the adjacent two corners of the circuit.  In a circuit diagram the wheatstone bridge is usually shown as four resistors representing the strain gauges, joined together in a diamond shape.

The output from a strain gauge sensor is directly influenced by changes in the supply voltage and the relationship between the two is expressed as a ratio of the full scale output voltage divided by the input supply voltage:

e.g. If a transducer has a 10 volt supply which generates a 100 milli-volt signal at full range it will have an output sensitivity of 10 mV / V.

Since the output from a transducer is also linearly proportional to the force, load or the pressure being measured, the measurement units can also be incorporated into the output sensitivity specification:

e.g. If a 60 bar pressure transducer has a 3 mV/V output sensitivity, an alternative way of describing the output characteristic is to write it as 0.05 mV/V/bar.
Millivolt signal strain gauge based measurement products
  • SWL Marine Bronze Submersible Level Sensor
  • TPF Flush Diaphragm Strain Gauge Pressure Sensor TPF Flush Diaphragm Strain Gauge Pressure Sensor
  • IMCL IP68 Millivolt Output Level Sensor
  • TPS Strain Gauge Pressure Sensor

Request info on millivolt signal strain gauge based measurement products for your application.

Measurement Signal Related Terms

More pages related to measurement signal technical terms.

  • 2 Wire
  • 3 Wire
  • 4 to 20 mA Current Loop Output Signal
  • 4 Wire
  • Amplified Voltage Output
  • BFSG – Bonded Foil Strain Gauge
  • Deadband
  • Digital Interface
  • FSO – Full Scale Output
  • HART®
  • High Frequency Response
  • Intrinsic Safety
  • Measurement Signal
  • Millivolt Output Pressure Transducers
  • NC – Normally Closed
  • NO – Normally Open
  • Piezoresistive Strain Gauges
  • Pressure Transmitters
  • Rangeable
  • Ratiometric
  • Span
  • Span Offset
  • Span Sensitivity
  • Square Root Extraction
  • Threshold
  • Totalizer
  • Transducer
  • Transmitter
  • TSL – Terminal Straight Line
  • TSS – Thermal Span or Sensitivity Shift
  • Turndown Ratio
  • USB
  • Vented Cable
  • Voltage Output Pressure Transducers
  • Wheatstone Bridge Strain Gauge
  • Zero Offset
  • Zero Tare

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