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Transducers offer micron accuracy from RDP Electronics

The latest D5/25HK unguided linear displacement transducer from RDP Electronics is suitable for gauging and positioning applications where space is restricted and micron accuracy is required.

Using the well-proven linear variable differential transformer (LVDT) principle that delivers infinite resolution with absolute measurement, it provides accurate information over its linear range of 1.3mm. It is robust and reliable and, thanks to the LVDT principle wherein there is no electrical contact across the transducer positioning element, it enjoys a long and trouble-free life.

Manufactured from stainless steel, the D5/25HK is just one of a family of miniature displacement transducers that can be used in conjunction with the RDP range of signal conditioners for closed-loop control and measurement applications.

Note for Linear variable differential transformer
The linear variable differential transformer (LVDT) is a type of electrical transformer used for measuring linear displacement. The transformer has three solenoidal coils placed end-to-end around a tube. The centre coil is the primary, and the two outer coils are the secondaries. A cylindrical ferromagnetic core, attached to the object whose position is to be measured, slides along the axis of the tube.

An alternating current is driven through the primary, causing a voltage to be induced in each secondary proportional to its mutual inductance with the primary. The frequency is usually in the range 1 to 10 kHz.

As the core moves, these mutual inductances change, causing the voltages induced in the secondaries to change. The coils are connected in reverse series, so that the output voltage is the difference (hence "differential") between the two secondary voltages. When the core is in its central position, equidistant between the two secondaries, equal but opposite voltages are induced in these two coils, so the output voltage is zero.

Contact Us
RDP Electronics
Address:
Grove Street
Heath Town
Wolverhampton
WV10 0PY
United Kingdom
Telephone: +44 1902 457512

Release link: http://www.rdpe.com/