TD-1 hydraulic servo motor sensor

TD series LVDT sensor

TD series linear differential transformer displacement sensor is a kind of LVDT displacement sensor with high reliability. It can be used to measure the expansion of steam turbine cylinder, valve position opening and displacement. Because of its durability and high precision, it has a wide range of applications.

measuring principle 

As shown in the figure, when an iron core moves in the spiral coil, the impedance between a and B and the impedance between B and C change. When a constant voltage is supplied between a and C, since the change of these impedances is directly proportional to the movement of the iron core, that is, the change of voltage is linearly proportional to the displacement of the iron core, the displacement of the iron core can be measured by taking out the voltage difference between VAB and VBC.

technical parameter

■ travel range:

Tdz-1 valve position sensor: 0 ~ 20, 35mm

TD-1 primary valve position sensor: 0 ~ 20, 35, 50, 100, 150, 200, 250, 300, 350, 400, 500, 600

Td-2 thermal expansion sensor: 0 ~ 25, 35, 50mm

Ut-81 oil level sensor of oil tank: ± 100, ± 200, ± 300, ± 400mm

■ excitation: 1500hz, 10 ~ 20vac

■ linear impedance: 250 Ω± 50 Ω (1500hz)

■ linearity: ± 1.5% of the effective full range

■ service temperature: - 10 ~ 100 ℃

■ relative humidity: ≤ 90% non condensing