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TEDS is an acronym for Transducer Electronic Data Sheet and is a method of providing a plug and play capability for various types of sensor.
The TEDS standard is defined by the Institute of Electrical and Electronic Engineers (IEEE) of the USA and is specifically referenced by standard IEEE 1451.4
Application
TEDS provides the capability where a sensor can be connected to a TEDS-enabled device that can then automatically calibrate and configure itself to match the connected item. This allows a true plug-and-play capability where a sensor could be replaced with another without the need for system shutdown or costly recalibration.
Another advantage is that each TEDS sensor has a unique identifier which can be read by the TEDS-enabled instrument and can be used to avoid situations where the wrong sensor is being read. This is of major importance in multi-channel installations such as airframe fatigue testing, where hundreds of measurement channels may be placed in close proximity.
To install TEDS capability in a sensor requires that a suitable EEPROM be fitted, either inside the sensor or in the cable or connector. Suitable EEPROMS are made by DALLAS MAXIM and are of the type DS-2431 and DS-2433.
The calibration and configuration data is written to the EEPROM in strict accordance with the IEEE 1451.4 standard and can only be read back by a device that has the appropriate software that is needed to convert the data from raw form, through the use of templates, back into useful data.
Mantracourt supports TEDS in all new product designs and in hand held indicator products.
