New inductive position sensors for demanding applications

A new range of INELTA linear variable differential transformer (LVDT) inductive position sensors is now available from Hoffmann Krippner. Due to the housing made from chemically nickel-plated steel with IP65 type of protection (optional IP68) and a temperature range of -25C to +85C, which can be expanded on request, the LVDT sensors are suitable for use in harsh many environments. The LVDT sensors operate on the principle of the differential transformer and are suitable for use in areas such as medical technology, industrial, maritime systems, testing facilities, machinery construction, special-purpose machines and agriculture. Due to their external thread, the devices are 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. The connection takes place 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 2mm, 5mm, 10mm or 20mm, 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. For the M12 models, users can choose between various signal amplifiers which generate output signals ranging from 0 to 5V, 0 to 10V, ±5V, ± 10V, 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. An online configuration guide and questionnaire with optional capabilities are provided to make it easy for design engineers to create their own custom designs, says the company.