Although the 4mm diameter housing of these Linear Variable Differential Transformer (LVDT) sensors are barely larger than a matchstick, their interior provides a complete and powerful differential transformer measuring system with a core and coils.
The contactless, wear-free sensors for displacement and position detection achieve a linearity tolerance of ± 0.5% (optionally 0.25%) and are designed for the extremely small measuring ranges of 1, 2.5 and 5 mm.
With a housing made of chemically nickel-plated steel (protection class IP65) and a temperature range of -25 to +85° C, (which can be extended even further upon request), these new miniature displacement and position sensors are suitable for use in harsh and demanding environments.
The production of such a tiny sensor requires utmost precision. The small coils are wound with a special winding machine
This new IZAL series sensor provides engineers and developers a reliable sensor with the highest measurement accuracy, especially for applications with extremely little space.
Michael Fiala - Developer, Inelta Sensorsysteme
The actuation takes place via an unguided core, with the sensors being connected via a 1mm cable (optionally available in other lengths). Upon request, Hoffmann + Krippner also provides custom sensor versions with additional equipment options, e.g. individual calibrations.
Datasheets and additional information are available for download here