Using the same design and offering the same range specifications, another new high temperature accelerometer which significantly reduces setup time, thanks to TEDS technology, is the Type Type 4528-B. It communicates with the user’s data acquisition hardware to automatically self-identify and supply calibration data from a microchip contained inside it. Type 4528-B is rated up to 165°C for continuous use.
Both accelerometers give the user the ability to select the number of axes that they want to measure: three, two or just one axis – avoiding the confusion of unnecessary data, and reducing the amount of measurement channels required.
The new units contain a built-in pre-amplifier, meaning they don’t need an external charge amplifier to power the signal. Instead, they are simple to ‘plug-and-play’ using just an ordinary signal cable.
Previously, non-charge type accelerometers couldn’t measure at such a high temperature as their integral pre-amplifies couldn’t survive the heat.
However every new high temperature unit to be shipped from Brüel & Kjær’s Danish production facilities is continuously tested at 180°C for 48 hours, which ensures they are completely reliable and also pre-ages the materials – keeping their performance consistently stable.
All models are available with a high-temperature cable that safely copes with temperatures up to 250°C without distortion.
A range of mounting options allows users to secure them on anything, using an M3 stud, an adhesive pad that extends the life of the transducer, or a clip mounting that ensures easy positioning.
