LVDT sensor WM
Inductive miniature half-bridge sensor
Inductive miniature LVDT sensor for measuring ranges of 1mm to 2mm for hydraulics and valve construction as well as general industrial applications with limited installation space in production, testing and mechanical engineering. The LVDT sensor with 10mm case diameter, or also in customised special versions, has a coil unit with fully symmetrical coil construction according to the LVIT differential choke principle / half-bridge circuit.
Special designs according to customer specifications are possible.
Important features
- Nominal stroke: 1 mm up to 2 mm
- Mechanical stroke: 3 mm
- Case diameter: 10 mm
- Operating temperature: -50 ... 80 °C
- Protection class (DIN 40050): IP 64
Technical data
WM 1 |
WM 2 |
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Nominal stroke | mm | ±0,5 | ±1 |
Mechanical stroke | mm | 3 | 3 |
Dimension A (electrical zero of core) | mm | 25 | 25 |
Dimension B (overall length) | mm | 15 | 15 |
Dimension C (diameter) | mm | 10 | 10 |
Dimension D (size of male union) | mm | M3 | M3 |
Dimension E (length of male union) | mm | 10 | 10 |
Dimension F (core rod / core) | mm | 1/2 | 1/2 |
Sensor weight (approx.) | g | 6 | 6 |
Core weight (approx.) | g | 1 | 1 |
Nominal output (approx.) | mV/V | 40 | 80 |
Sensitivity (approx.) | mV/V/mm | 80 | 80 |
Properties
WM 1 ... 2 |
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Excitation voltage (eff.) | 1 ... 5 V | |||||
Carrier frequency | 5 ... 10 kHz | |||||
Linearity | 0,5 % F.S.O. | |||||
Temperature coefficient of zero | ±0,05 % / 10 K | |||||
Temperature coefficient of span | ±0,1 % / 10 K | |||||
Operating temperature | -50 °C ... 80 °C | |||||
Protection class (DIN 40050) | IP 64 |
Do you have further technical questions about the product?
We will be happy to help you determine the order code and provide you with further specific information for your required product.
Dimensional drawings / Connection variants
WM

Electrical connection
Leads | |
Type of connection |
PTFE leads 250 mm long |
Configuration | |
Excitation + | Blue |
Excitation - | Red |
Measuring signal + | White |
Measuring signal - | -- |