TEDS (Transducer Electronic Data Sheet) is a set of electronic data in a standardized format defined within the IEEE 1451.4 standard. This data specifies what type of sensor is present, describes its interface, and gives technical information such as manufacturer, type number, serial number, sensitivity, calibration date, reference condition, etc. A TEDS sensor is the same as a "plug-and-play sensor”. Via its internally memory, it can identify and describe itself to the data acquisition system and perform automatic system configuration.
TEDS is now available across the entire range of GRAS ear simulator test platforms — the broadest range in the market. All CCP-based GRAS ear simulator sets and all 45CC Acoustic Test Fixtures (including LEMO-based configurations) will now be delivered with TEDS. This includes KEMAR, 45CA Headphone and Hearing Protector Fixtures, and Acoustic Test Fixtures 45CC, as well as most of the Artificial Ear 43Ax line.
The addition of TEDS will allow users of ear simulators easy access to calibration data. They will be able to read and check the type, serial number, sensitivity and last calibration data in the ear-simulator systems, identify the “Left” and “Right” channels, and use this information for documentation or application purposes. This robust feature set is possible without disassembling the fixture and will benefit users of built-in ear simulators.
Ease of use and functionality are maximized when working with combined GRAS and Audio Precision solutions, such as a measurement chain with TEDS-enabled ear simulators and a GRAS 12Bx power module or an Audio Precision analyzer such as APx517 or APx1701. The standardized TEDS format also means that any test and measurement setup with analyzers supporting TEDS will benefit from using GRAS couplers, ear simulators, and head and torso systems.
According to Niels Kjaergaard, VP Business Development at GRAS Sound & Vibration, “An important part of our innovation is improving ease of use for our customers. Adding TEDS-enabled microphones to so many simulator platforms is a great enhancement to workflow and total system ease of use.” The TEDS-enabled functionality is already implemented across GRAS’ products and will be delivered as an additional standard feature in most test fixtures and ear simulators. Prices for systems will remain the same.
Read more about TEDS here.
GRAS Sound & Vibration is represented through subsidiaries and distributors in more than 40 countries and is part of Axiometrix Solutions, together with globally recognized measurement brands Audio Precision, and imc test and measurement.
www.GRASacoustics.com
