Definition Of Hysteresis Error
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Hysteresis Error Dictionary
Unit Conversion Program Glossary of Transducer-Related Terms Instrument Calibration & Test Procedure Videos ATEX, Intrinsic Safety & Hazardous Area Information IP meaning of hysteresis error Ratings and Equivalent NEMA Ratings Reference Articles on Sensors and Transducers Engineering Notes on Pressure Measurement Links to Other Useful Websites Distributors Contact Us Quick Enquiry Form Name: Email Address or Phone No: hysteresis error description Your Enquiry: >>You Are Here: Home > Technical Resources > Technical Notes on Pressure Sensing 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. The hysteresis error value is normally specified as a positive or negative percentage of the
Hysteresis Error Wiki
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 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. The hysteresis error is not always specified separately but combined in a total figure for linearity, hysteresis and repeatability. Read more: Index to all of our Technical Notes on Pressure Related Items View Our Full Range of Pressure Sensors Here Design & Manufacture of Sensors, Systems, Instrumentation, Data Acquisition & Logging, USB Sensors, Wireless Sensors Home | Products | Services | About Us Blog | Resources | Distributors | Contact Us 3 Mercury House, Calleva Park, Aldermaston, Berkshire, RG7 8PN Tel: +44 (0) 1189 817339 - E-Mail: info@appmeas.co.uk © 2004-2016 A
page. (August 2016) (Learn how and when to remove this template message) Electric displacement field D of a ferroelectric material as the electric field E is first decreased, then increased. The define hysteresis error curves form a hysteresis loop. Hysteresis is the time-based dependence of a system's output definition of hysteresis in electronics on present and past inputs. The dependence arises because the history affects the value of an internal state. To predict
Definition Of Hysteresis Loss
its future outputs, either its internal state or its history must be known.[1] If a given input alternately increases and decreases, a typical mark of hysteresis is that the output forms a loop as http://www.appmeas.co.uk/technical-notes/what-are-hysteresis-errors.html in the figure. Such loops may occur purely because of a dynamic lag between input and output. This effect disappears as the input changes more slowly. This effect meets the description of hysteresis given above, but is often referred to as rate-dependent hysteresis to distinguish it from hysteresis with a more durable memory effect. Hysteresis occurs in ferromagnetic materials and ferroelectric materials, as well as in the deformation https://en.wikipedia.org/wiki/Hysteresis of some materials (such as rubber bands and shape-memory alloys) in response to a varying force. In natural systems hysteresis is often associated with irreversible thermodynamic change. Many artificial systems are designed to have hysteresis: for example, in thermostats and Schmitt triggers, the principle of hysteresis is applied to avoid unwanted frequent switching. Hysteresis has been identified in many other fields, including economics and biology. Contents 1 Etymology and history 2 Types 2.1 Rate-dependent 2.2 Rate-independent 3 In engineering 3.1 Control systems 3.2 Electronic circuits 3.3 User interface design 3.4 Aerodynamics 4 In mechanics 4.1 Elastic hysteresis 4.2 Contact angle hysteresis 4.3 Adsorption hysteresis 4.4 Matric potential hysteresis 5 In materials 5.1 Magnetic hysteresis 5.1.1 Physical origin 5.1.2 Magnetic hysteresis models 5.1.3 Applications 5.2 Electrical hysteresis 5.3 Liquid–solid-phase transitions 6 In biology 6.1 Cell biology and genetics 6.2 Immunology 6.3 Neuroscience 6.4 Respiratory physiology 6.5 Voice and speech physiology 6.6 Ecology and Epidemiology 7 In economics 7.1 Permanently higher unemployment 7.2 Game theory 8 In law 9 Additional considerations 9.1 Models of hysteresis 9.2 Energy 10 See also 11 References 12 Further reading 13 External links Etymology and history[edit] The term "hysteresis" is derived from ὑστέρησις, an ancient Greek word meaning "deficiency" o
Search / Page tools TheFreeDictionary Google Bing ? Keyboard Word / Article Starts with Ends with Text A A A A Language: EnglishEspañolDeutschFrançaisItalianoالعربية中文简体PolskiPortuguêsNederlandsNorskΕλληνικήРусскийTürkçeאנגלית Twitter Get our app Log in / http://encyclopedia2.thefreedictionary.com/hysteresis+error Register E-mail Password Wrong username or password. Facebook Twitter Google+ Yahoo http://www.datwiki.net/page.php?id=4234&find=hysteresis%20error%20(instrument%20indication%20error)&searching=yes Remember Me Forgot password? Register Getour app DictionaryThesaurusMedicalDictionaryLegalDictionaryFinancialDictionaryAcronymsIdiomsEncyclopediaWikipediaEncyclopedia Tools A A A A Language: EnglishEspañolDeutschFrançaisItalianoالعربية中文简体PolskiPortuguêsNederlandsNorskΕλληνικήРусскийTürkçeאנגלית Mobile Apps: apple android For surfers: Free toolbar & extensions Word of the Day Help For webmasters: Free content Linking Lookup box Close hysteresis error hysteresis error[‚his·tə′rē·səs hysteresis error ‚er·ər] (physics) The maximum separation due to hysteresis between upscale-going and downscale-going indications of a measured variable. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, or visit the webmaster's page for free fun content. Link to this page: hysteresis error Facebook Twitter definition of hysteresis Feedback My bookmarks ? Please log in or register to use bookmarks. You can also log in with FacebookTwitterGoogle+Yahoo +Add current page to bookmarks TheFreeDictionary presents: Write what you mean clearly and correctly. References in periodicals archive ? There are glass scales that not only have essentially zero thermal expansion, but that are mounted in a new way that reduces the hysteresis error to a fifth of the previously used method.Quality tools: new developments that can help you assure part and/or assembly qualityIn the force mode the most important source of hysteresis error arises due to systematic angular motions of the wheel before weighings.We have studied magnetic and mechanical sources of hysteresis error in the NIST watt experiment.Of interest in this paper are the actual methods that we use to perform the measurements involved in the watt experiment, and their susceptibility to hysteresis errors.Hysteresis and Related Error Mechanisms in the NIST Watt Balance Experiment Encyclopedia browser ? ▲
values are decreasing. Hysteresis error is caused by internal friction in the instrument mechanism. © Aviation Supplies and Academics, Inc. All right reserved. About the Author