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Square Root Extraction

Square Root Extraction is a mathematical process which is applied to a linear measurement scale to convert it to a non-linear square root scale.

The square root scale is generated by taking the square root of the ratio between measurement reading and full span.

Over a fixed measurement range with a square root extraction applied, the square root measurement will rise faster than the linear measurement at first, and then steadily slow down as measurement readings approach 100% full scale.

For example the flow of a gas or liquid through a closed pipe is proportional to the square root of the differential pressure. Therefore you can use a differential pressure sensor to measure flow by applying a square root extraction to the linear output.

Square root extraction measurement products
  • 10 kPa orifice plate differential pressure transmitter for water flow measurement
  • XMD Process Plant DP Cell Differential Pressure Transmitter
  • ISOCON Universal Analogue Measurement and Control Signal Input to Output Converter
  • DP transmitter with for measuring 300inH2O gas flow across orifice plate

Related Tools

  • Convert linear input to square root extraction output
  • Convert square root extraction input to linear output

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
  • mV/V – Millivolts per Volt Output Signal
  • NC – Normally Closed
  • NO – Normally Open
  • Piezoresistive Strain Gauges
  • Pressure Transmitters
  • Rangeable
  • Ratiometric
  • Span
  • Span Offset
  • Span Sensitivity
  • 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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Wirelessly Measure & Log 4-20mA

Use this battery powered wireless 4-20mA wireless transmitter to transmit readings to a receiver connected to USB, RS485, RS232, cellular network or analog output

Use this battery powered 4-20mA wireless transmitter to transmit readings to a receiver connected to USB, RS485, RS232, cellular network or analog output

Featured Product Types

  • RS485 Serial Interface Pressure Sensors
  • SIL 2 Approved Safety Rated Pressure Transmitters
  • Vacuum Pressure Transmitters
  • ATEX Approved Liquid Level Sensors for Hazardous Areas
  • Differential Pressure Transmitters
  • Submersible Liquid Level Sensors

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