Capacitance method for measuring the level of a fluid.
Capacitive fluid level sensors are measurement devices which typically consist of a single probe which acts as an immersed electrode inside a tank. This probe interacts with an opposite electrode, usually the wall of a tank, and the two are connected together to form a capacitor.
The fluid contents of the tank act as the dielectric medium, which will affect the capacitance created between the two electrodes. If the fluid level rises and falls, this will change the capacitance measured by the probe in a predictable way, and therefore it can be used very effectively as a measurement of fluid level.
Featured liquid level measurement products
Sonde OEM water depth sensor for 300m deep borehole - We are looking to integrate a pressure sensor into the bottom of a Sonde. The sensor will be used to monitor the water depth in a borehole up to a maximum of 300m.
HART flameproof (Ex d) re-scalable level transmitter for hydrostatic head up to 2 metres - HART compatible, ATEX flameproof approved, rangeable level transmitter to measure hydrostatic head of water/glycol or mineral oil fluid within a reservoir about 2 metres in height.
Glossary of Liquid Level technical terms
- cmH2O – Centimetres of Water Column at 4 deg C Pressure Unit
- Conductive Fluid Level Detection
- Float Fluid Level Detection
- ftH2O – Feet of Water Column at 4 deg C Pressure Unit
- mH2O – Metres of Water Gauge at 4 deg C Pressure Unit
- mmH2O – Millimetres of Water Column at 4 deg C Pressure Unit
- Specific Gravity
- Vibrating Tuning Fork Fluid Level Detection
Help from Liquid Level resources
- Determining the hydrostatic pressure range for a tank level sensor
- Measuring liquid level in a sealed tank with a hydrostatic pressure sensor
- Determining water tank volume using hydrostatic pressure
- Difference between vented and non-vented water level measurement
- Measuring the volume of liquid in a horizontal cylinder tank
- How do you measure the volume of a liquid using pressure
- Measuring liquid level in a tank using a dp sensor
