Mitutoyo Mu-Checker Probes - Lever Type, LVDT Sensor
The Mitutoyo lever head Mu-Checker probes are available in two types: pivoted stylus and parallel translation types. The Mitutoyo lever head Mu-checker probes offer interchangeable styli with a half bridge connection. A low-measuring-force sensor enables even a soft workpiece to be measured without significant deformation.
Mitutoyo Mu-Checker Probes - Lever Type, LVDT Sensor
- Available in two types of stylus support: Pivot bearing and parallel-leaf spring
- Measuring range +/- 0.5 mm
- 2m cable provided; (3) Interchangeable styli provided
- Mounting bracket options (sold separately)
Measurement Principle
This instrument uses a differential inductance displacement sensor energized by a 5kHz AC exciting voltage applied across two identical series-connected coils, L1 and L2. An iron core connected to the stylus moves close to both cores and varies the impedance of each coil depending on its position, and the voltage at the junction between the coils varies as the impedance difference. Two resistors, R1 and R2, form a bridge circuit with the coils and the bridge output voltage drives electronic amplification and conditioning circuits to provide a voltage signal proportional to displacement of the stylus.