Quick Enquiry

    Thanks for your enquiry. We'll be in touch soon.
    Get our latest product and application news sent directly to your inbox.
    Your email address:*
    Please enter all required fields Click to hide
    Correct invalid entries Click to hide

    What are Hysteresis Errors?

    The hysteresis error of a pressure sensor is the maximum difference in output at any measurement value within the sensor’s specified range when approaching the point first with increasing and then with decreasing pressure.

    Graph showing sensor hysteresis errors

    The hysteresis error value is normally specified as a positive or negative percentage of the specified pressure range. If a sensor is only used over half of the specified range the hysteresis error is calculated from this value.

    By using the maximum working pressure, the accuracy is, of course, better than specified by the manufacturer (for example the percentage of working pressure). Also, the hysteresis error is usually expressed as a combination of mechanical and temperature hysteresis.

    Mechanical hysteresis

    Mechanical hysteresis is the output deviation at a certain input pressure when that input is approached first by increasing and then by decreasing pressure.

    Temperature hysteresis

    Temperature hysteresis is the output deviation at a certain input pressure, before and after a temperature cycle.

    Hysteresis errors are not always specified separately but combined in a total figure for linearity, hysteresis and repeatability.

    If you like the article, please share it with others.

    Read more: Index to all of our Technical Notes on Pressure

    Interested in discussing your transducer’s hysteresis errors? Let us call you…

      Our call back service is only available for UK phone numbers. If you are based outside the UK, please send us an enquiry using the form on the contact us page.

      Why Us?

      • Suppliers of top quality strain gauge sensors and transducers to every corner of industry – UK and worldwide
      • Over 100 years of expert transducer knowledge
      • Our high quality products all come with a 3 year warranty
      BSI Assurance Mark ISO 9001:2015 FS677584
      We Are a Living Wage Employer
      Cyber Essentials Certified