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Accuracy

Accuracy of a measurement instrument defines how much a measurement value may deviate from the perfect measured value.

The total error can be broken down into many component errors such as non-linearity, hysteresis, repeatability, temperature errors, stability, zero offset and span offset.

Accuracy is very closely connected with precision, but unlike precision it is constrained by a series of fixed reference points or absolute values that all readings are compared with to define the exactness of the instrument measurement. Typically these comparison absolute values are read from a more accurate instrument ideally with a 10 to 1 ratio difference in accuracy to ensure it does not contribute significantly to the overall error calculation. However in practise it is not always possible to achieve such a high ratio difference in accuracy. When this is the case the overall accuracy should also include the reference instrument uncertainty which better reflects the true accuracy of the device.

High accuracy measurement products
  • High Accuracy and Precision, Voltage Signal Output Pressure Transducers
  • PD33X Digital Differential Pressure Sensor
  • PD39X High Differential Pressure Transmitter PD39X High Differential Pressure Transmitter
  • Digital pressure gauge for calibrating steam gauges from vulcanisation presses

Request info on high accuracy measurement products for your application.

Accuracy Related Terms

More pages related to accuracy technical terms.

  • BSL – Best Straight Line
  • Compensated Temperature Range
  • Digital Compensation
  • g Effect
  • High Accuracy
  • Hysteresis
  • LHR – Linearity, Hysteresis and Repeatability
  • Long Term Stability/Drift
  • NL – Non-Linearity
  • PPM – Parts Per Million
  • Precision
  • Pressure Hysteresis
  • Repeatability
  • RTE – Referred Temperature Error
  • Secondary Pressure Standard
  • TEB – Temperature Error Band
  • TEB – Total Error Band
  • Temperature Compensation
  • Temperature Error
  • Thermal Hysteresis
  • Threshold
  • TSL – Terminal Straight Line
  • TSS – Thermal Span or Sensitivity Shift
  • TZS – Thermal Zero Shift

Primary Sidebar

Product Selection Guides

  • Differential Pressure Sensors
  • Digital Pressure Gauges
  • Digital Pressure Sensors
  • Digital Readouts
  • Hydrostatic Liquid Level Sensors
  • Millivolt Output Pressure Transducers
  • Pressure Transducers
  • Pressure Transmitters
  • Voltage Output Pressure Transducers

Application Selection Guides

  • Absolute Pressure
  • Dual Temperature and Pressure
  • Flush Diaphragm
  • High Frequency Response
  • Leak Testing
  • Low Pressure Range
  • Oxygen Service
  • Submersible
  • Vacuum

Product Enquiry

Send us your enquiry for a product associated with this Accuracy page, and get assistance with selecting a product for your application.

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enquiries@sensorsone.com

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