Magnetomechanical displacement sensors are high-precision displacement measurement devices developed based on the magnetostrictive principle. They use non-contact measurement methods, have long service life, strong environmental adaptability, and do not require regular calibration or maintenance. The product provides absolute output, so no zeroing is needed after restart. It features high precision, high stability, high reliability, and high repeatability. It supports various output methods such as current, voltage, SSI, and Modbus, and is widely used in demanding industrial environments like oil, chemical, steel, port, mechanical, and food industries. It is the preferred choice for high-precision displacement control.
SDM20T | SDM21T | SDM22T | SDM23T | SDM40S | ||
Power supply | 7 ~28V DC | |||||
Working current | ≥100mA | |||||
Range | 80-3000mm | |||||
Output signal | RS485 output (four-wire system, power supply voltage 7~28VDC) | |||||
0.5~4.5VDC (four-wire system, power supply voltage 7~28VDC) | ||||||
0~5VDC (four-wire system, power supply voltage 7~28VDC) | ||||||
0~10VDC (four-wire system, power supply voltage 12~28VDC) | ||||||
0~20mA (four-wire system, power supply voltage 18~28VDC) | ||||||
4~20mA (four-wire system, power supply voltage 18~28VDC) | ||||||
Measurement object | 1 | |||||
Resolution | 0.001mm | |||||
Nonlinearity | 0.1%F.S. | |||||
Repetitive error | ≤0.01%F.S | |||||
Load capacity | The minimum load for voltage signal output is ≥ 5KΩ. | |||||
The maximum load resistance for current signal output is 600Ω. | ||||||
Update time | 1 ms (stroke ≤ 1000 mm) / 2 ms (stroke ≤ 3000 mm) | |||||
Operation temperature | -40℃ ~ +85℃ | |||||
Mechanical impact test | 500g/GB/T 2423.5-2019 | |||||
Mechanical vibration testing | 15g/30Hz-1000Hz/GB/T 21117-2007 | |||||
Work stress | The stainless steel measuring rod has a pressure resistance of 35 MPa, higher options available upon consultation. | |||||
Delay | ≤ 0.002%F.S. | |||||
Temperature coefficient | <50ppm/℃ | |||||
Protection rating | IP67 (customizable to IP68) |