Tiny displacement and position sensors for demanding applications

Hoffmann + Krippner now offers the ultra-slim, inductive-displacement Inelta IZAL series sensor. Utilizing differential sensing technology, the innovative sensors ensure precise path length measurements in applications with highly-confined spaces. 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 production of such a tiny sensor requires utmost precision. The small coils are wound with a special winding machine," said Michael Fiala, Developer at Inelta Sensorsysteme GmbH & Co. KG. "This new IZAL series sensor provides engineers and developers a reliable sensor with the highest measurement accuracy, especially for applications with extremely little space." 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 1mm, 2.5mm and 5mm. With a housing made of chemically nickel-plated steel (protection class IP65) and a temperature range of -25C to +85C, (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 actuation takes place via an unguided core, with the sensors being connected via a 1mm cable (optionally available in other lengths). Custom options are also available, says the company.