Capacitive Level Sensors
Capacitive level sensors take advantage of the difference in dielectric constant between air and most liquids to non-invasively measure the presence or absence of liquids in a container non-invasively. They’re ideal for detecting liquids inside of thin-wall non-conductive vessels.
Every application is different, and suitability depends on a range of factors, but the table below is intended as a starting point to decide whether capacitive sensing is right for an application.
|
CQV Continuous Level Sensor |
|
Vessel Material |
Plastic |
✓ |
Glass |
✓ |
|
Metal |
✗ |
|
Compatible Liquids |
✓ |
|
✗ |
||
Vessel Thickness |
≤2.5mm |
✓ |
>2.5mm |
✗ |
|
Output |
USB (0-100%) |
✓ |
I2C (0-100%) |
✓ |
|
Mounting |
Adhesive-mount |
✓ |
Applications |
Disposable |
✓ |
Permanent |
✓ |
|
Size |
100mm standard |
✓ |
Custom Sizes |
Available upon Request |
Capacitive level sensors work with a wide range of materials and applications, and they also have the advantage of being mechanically simple with no moving parts and minimal required maintenance. They are well-suited for both point and continuous level measurements in disposable and non-disposable applications.