magnetostrictive linear displacement transducer

Kingmach Measurement & Monitoring Technology Co., Ltd. has built its reputation as a professional manufacturer of geotechnical instruments, and the magnetostrictive linear displacement transducer is one of the core products in our wide range. We design these transducers for projects where standard LVDTs or potentiometric sensors do not hold up because of moisture, vibration, or the need for absolute position feedback right at power-up. The magnetostrictive technology offers inherent advantages: there is no physical contact between the sensing element and the position magnet, so you get a sensor that does not drift from mechanical wear. Depending on the model, linearity can be within ±0.02% of full scale, and the update rate is fast enough for dynamic monitoring—typical bandwidth on our standard units is up to 3 kHz, which covers most geotechnical data acquisition systems. We also pay attention to the housing. Stainless steel or anodized aluminum bodies protect the waveguide and electronics, and the connection is usually a robust military-style connector or a direct cable gland with double shielding. For applications like dam monitoring, tunnel convergence, or bridge bearing displacement, we can supply the transducer with a sliding magnet assembly or a float type for liquid level measurement, all calibrated to work with common dataloggers. Our global distribution network means we can ship to project sites in Europe, Asia, or the Americas with the same technical support and after-sales service. And because we are a mid-range supplier, you get reliable performance without the premium of high-end brands, and we are flexible on custom ranges, output signals (4-20 mA, 0-10 V, SSI, Modbus), and even firmware tweaks if you need a specific filtering behavior. When you contact us, we usually ask for the measurement range, mechanical constraints, and the environment, and we can propose a solution from our existing line or quote a custom variant.