Frisco, Tex. – Hoffmann – Krippner Inc. now offers a wide range of rugged LVDT sensors from its German partner company INELTA for contactless and wear-free path and position detection. The LVDT sensors operate on the principle of the differential transformer and are suitable for many applications, such as medical technology, industrial, seafaring, testing, machinery construction, special purpose machines and agriculture.
Thanks to the housing made from chemically nickel-plated steel with IP65 protection (optional IP68) and a temperature range of -25 to +85°C, which can be expanded on request, the LVDT sensors are suitable for use in harsh environments, said the company. In addition, due to their external thread, the devices can be easily installed and adjusted. Unlike competing smooth designs, there is no need for them to be clamped with grub screws which can damage the housing and distort the measured value, added the company.
The inductive position sensors are connected via a M12 connector or a cable. They are available as M12 or M18 versions with external thread and capture measuring lengths of up to 2, 5, 10 or 20 mm, depending on the model. It is actuated by an unguided core or a switch with internal spring. The linearity tolerance of the sensors is ± 0.5%.
The M18 sensors come with integrated electronics and a current or voltage output, while the M12 models offer various signal amplifiers that generate output signals ranging from 0 to 5 V, 0 to 10 V, ± 5 V, ± 10 V, 0 to 20mA or 4 to 20mA.
Custom sensor designs with other configuration options, such as improved linearity tolerance or individual calibrations, are also available. The company offers an online configuration guide and questionnaire with optional capabilities to help design engineers create their own custom designs.