By MS.Jin | 11 July 2023 | 0 Comments
LINEAR VARIABLE DIFFERENTIAL TRANSFORMER (LVDT)
LINEAR VARIABLE DIFFERENTIAL TRANSFORMER (LVDT)
LVDT Linear Variable Differential Transformer is a highly reliable linear transformer that provides long-range measurement of turbine valve opening casing expansion and oil level. It has a broad range of applications due to its durability and measuring accuracy.
Principle of measurementAs shown in following figure, when an iron core moves within the wound coils, the impedances between A and B, and B and C changes. Since these impedance changes are proportional to the movement of the iron core, a voltage proportional to the movement of the iron core can be generated by obtaining the difference between Vab and Vbc when a constant voltage is applied between A and C.





Specifications
Stroke:
TDZ-1 Valve Position Transducer: 0 ~ 20、35mm
TD-1 Valve Position Transducer: 0 ~ 20、35、50、100、150、200、250、300、350、400、500、600mm
TD-2 Case Expansion Transducer: 0 ~ 25、35、50mm
UT-81 Oil Level Transducer: ±100、±200、±300、±400、
Exciation:1500Hz,10 ~ 20VAC
Output impedance: 250Ω±50Ω(1500Hz)
Linearity: ±1.5% of F.S. at 25℃
Operating temperature: -10 ~ 100 ℃
Relative humidity:≤ 90% (noncondensing)

TD-2

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