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Capacitive level sensors
Capacitive level sensors are widely used in industrial applications to measure the level of liquids or bulk solids in containers, tanks, or silos. These sensors operate based on the principle of capacitance, which changes in response to variations in the level of the material being measured.
- 3V, 3.3V and 5V supply voltage
- Amplified analog and digital outputs (I2C oder SPI)
- Custom calibrations
Pressure sensors – AUAV Series
- Differential pressure ranges from ±5 inH2O to ±30 inH2O
- Supply voltage 3.3 VDC
- High precision airspeed and altitude measurement
Diaphragm pumps – T2-05 Series
- Optimised to provide high flow rates available with low current draw
- Life ranges up to 10,000 hours
- RoHS compliant
- Multiple port designs available for simple integration
- 100% oil and grease-free pump and compressor design
- RoHS compliant
- Unique, compact, and lightweight design
- 100% oil and grease-free pump and compressor design
- RoHS compliant
- Low noise dual ball bearing motor design
- Optimised pump balancing for ultra-low vibration
- Isolation mounts available for simple mounting
- “Connected” brushless motor design
- Optimised pump balancing for ultra-low vibration
- RoHS, REACH, and CE compliant
Oxygen sensors – OXY-PBC Series
- Oxygen rage from 0,1 to 25 %O2 and 0,1 to 100 %O2
- Externally triggered automatic or manual calibration
- High accuracy linear output
- Oxygen pressure range 2 to 3000 mbar
- High accuracy
- No reference gas required
Pressure sensors – DLHR Series
- Pressure ranges from 0.5 inH2O to 60 inH2O
- Low and variable supply voltage from 1.68V to 3.6V
- Dual-Die Reference technology
- Oxygen pressure range 0 to 300 mbar
- High accuracy
- No reference gas required
Level sensors – Optical – ALP Industry
- High media compatibility
- Compact design
- High temperature devices available
An Overview
Capacitive level sensors are an excellent choice for a wide range of industrial and commercial applications. They offer precision, reliability, and flexibility across multiple industries – just like our pressure sensors.
How capacitive level sensors work
1. Basic principle of capacitance
Capacitance is the ability of a system to store an electric charge. A capacitor consists of two conductive plates separated by an insulating material (called a dielectric). The capacitance is determined by the distance between the plates and the type of dielectric material.
2. Sensing mechanism
In a capacitive level sensor, the material being measured acts as the dielectric medium between two electrodes. As the level of material changes, the dielectric constant between the electrodes also changes, which in turn changes the capacitance.
The sensor detects this change in capacitance and correlates it with the level of material in the tank or container.
3. Measuring liquid levels
For liquids, the sensor can be immersed in the material or mounted on the outside of a non-conductive container. The capacitance increases as the liquid rises between the electrodes, enabling the sensor to determine the level.
4. Measuring solid or powder levels
Capacitive sensors can also measure the levels of bulk solids like grains, powders, and plastics. The dielectric constant of these materials is typically lower than liquids, but the sensor still detects changes in capacitance as the level fluctuates.
High-precision sensors
Highest precision for lowest pressures, reliable MEMS pressure sensors.
Innovative technologies
Innovative CoBeam²™ technology and dual die technology.
Customised system solutions
Individual system solutions for perfect integration of measurement technology in sophisticated applications.
Comprehensive product range
Standard solutions on a modular product platform.