Vibrating tuning fork switches for opening or closing electrical contacts at a preset fluid level.
Vibrating tuning fork fluid level switches are threshold contact trip devices which typically consist of a tuning fork which extends out from the switch housing.
In operation a piezoelectric oscillator is used to vibrate the tuning fork at its natural frequency for air.
A second piezoelectric device is used to pick-up the frequency of the vibrating tuning fork. When the fluid level rises and covers the tuning fork it will vibrate at a lower frequency.
This change in vibration frequency is used to detect when the required fluid level has been reached.
Related Help Pages
Browse other help pages associated with the same topic group as this Vibrating Tuning Fork Fluid Level Detection page.
- Determining the hydrostatic pressure range for a tank level sensor
- Determining water tank volume using hydrostatic pressure
- Hydrostatic Liquid Level Sensors
- Using Hydrostatic Pressure Transducers for Measuring Fluid Level
- Converting non-vented depth readings & barometric pressure to true depth
- Liquid Level Sensors
- Using absolute pressure sensors to measure hydrostatic level
- Measuring liquid level in a sealed tank with a hydrostatic pressure sensor
- mmH2O – Millimetres of Water Column at 4 deg C Pressure Unit
- How to determine milk tank level and volume from pressure
- How do you measure the volume of a liquid using pressure
- Are all IP68 Water Resistant Protection Ratings the same
- Difference between vented and non-vented water level measurement
- Calculating required pressure range for fuel tank level measurement
- Measuring the volume of liquid in a horizontal cylinder tank
- Specific Gravity
- Hydrostatic Pressure
- mH2O – Metres of Water Gauge at 4 deg C Pressure Unit
- ftH2O – Feet of Water Column at 4 deg C Pressure Unit
- Using a screw-in or waterproof pressure transmitter to measure liquid level
- cmH2O – Centimetres of Water Column at 4 deg C Pressure Unit
- Improve the electrical termination of vented submersible pressure sensors
- How does changes in Local Gravity affect Hydrostatic Pressure
- Considerations for monitoring Landfill Water Level
- Why are Submersible applications so demanding of Pressure Transducers?
- Liquid Level Measurement
- Liquid Level Switches
- Float Fluid Level Detection
- Conductive Fluid Level Detection
- Capacitive Fluid Level Measurement
- Determining the Signal Cable Length of a Suspended Liquid Level Transducer
Sensor Technology Related Terms
More pages related to sensor technology technical terms.
- BFSG – Bonded Foil Strain Gauge
- Bourdon Tube
- Capacitive Fluid Level Measurement
- Ceramic Pressure Sensors
- Conductive Fluid Level Detection
- Doppler Effect Flow Measurement
- Float Fluid Level Detection
- LVDT – Linear Variable Differential Transformer
- Paddle Wheel Sensor
- Piezoresistive Strain Gauges
- Positive Displacement Flow Measurement
- Radar Distance Sensing
- SOI – Silicon on Insulator
- Strain Gauge
- Thin Film
- Transit Time Flow Measurement
- Turbine Rotor Sensor
- Ultrasonic Distance Sensing
- Ultrasonic Flow Velocity Sensors
- Vortex Flow Measurement
- Wheatstone Bridge Strain Gauge