Nohken VH Series High-Sensitive Vibrating Level Sensor
Product Code:VH Series
Description
VH10NH VH10FH
VH20NH VH20FH
Level detection of solids having low bulk densityOriginally developed technology enables the sensor to detect solids having bulk density as low as 0.02.Easy installationNo adjustment required after installationVibration plate supported at two placesTwo-point support prevents affection from installation, achieving high accuracy measurement of solids of bulk density 0.02Wide range of types available to suit specific applicationsA variety of types available for different detection points and process connections.Principle of OperationThe sensor has two piezoelectric crystals, one for oscillation and the other reception, placed on a plate supported at two places. Without material, the plate is set to vibrate at its natural frequency. The vibration decreases when the plate is covered by the material. The decrease in vibration is detected by the piezoelectric crystal, and the electric signal is given to indicate material presence.
Technical Specifications
VH10NH VH10FH
VH20NH VH20FH
- Level detection of solids having low bulk density
- Originally developed technology enables the sensor to detect solids having bulk density as low as 0.02.
- Easy installation
- No adjustment required after installation
- Vibration plate supported at two places
- Two-point support prevents affection from installation, achieving high accuracy measurement of solids of bulk density 0.02
- Wide range of types available to suit specific applications
- A variety of types available for different detection points and process connections.
Principle of Operation
The sensor has two piezoelectric crystals, one for oscillation and the other reception, placed on a plate supported at two places. Without material, the plate is set to vibrate at its natural frequency. The vibration decreases when the plate is covered by the material. The decrease in vibration is detected by the piezoelectric crystal, and the electric signal is given to indicate material presence.