Schreiber SM25 Series Inductive Ring LVDT Sensor Ø 25 mm
- Manufacturer: Schreiber Messtechnik
- Category: Displacement, LVDT, LVDT Unamplified, SENSORS
He inductive LVDT sensor The Schreiber SM25 series breaks with conventional architecture by introducing a measuring system based on an aluminum target ring that moves axially on a steel shaft. It belongs to the group of passive LVDT technology, This miniature transducer achieves a useful stroke of 25 mm in a structural length of only 40 mm, critically optimizing installation space on test benches. By not housing semiconductors in its POM spool, it ensures a absolute EMI immunity and withstands harsh temperatures up to +100°C without signal degradation.
At the pneumatic or hydraulic coupling level, the device features a unique 13 mm through-diameter bore, allowing customer rods or shafts to slide through its center. To translate its inductance variation into the language of the PLC, this linear position sensor It connects to cabinet-mounted signal conditioners (SM10, SM12, or multi-channel SM14 series), which deliver the 4-20mA loop or voltage to the PLC. Encased in hermetically sealed galvanized steel with an IP67 rating, it is a rugged metrology solution with minimized inertia. Request CAD drawings or a technical quote here.
Properties
| Engineering Specification | Technical Value SM25 |
|---|---|
| Measurement principle | Passive analog inductive (Targeting configuration) |
| Outer diameter and casing | 25.0mm (Total length 40.0mm) |
| Hollow inner diameter | 13.0 mm (Through for shafts) |
| Useful measuring range | 25 mm |
| Linearity deviation (Error) | < 1.0 % |
| IP rating | IP67 (Sealed for humid environments) |
| Operating thermal band | -30 ºC to +100 ºC (Thermal drift < 0.01% / ºC) |
| Mechanical resilience (Impact) | 250 g SRS (Excitation from 20 to 2000Hz) |
| Primary enveloping material | Galvanized steel (Stahl, verzinkt) |
| Mobile sensor component | Aluminum actuator ring (on POM bobbin holder) |
| Integrated output and connector | 3×0.14 mm² radial injection braided cable |
| Coupling modules | Mandatory use of Schreiber SM10, SM12 or SM14 oscillators |
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