Capacitive soil moisture sensors are very sensitive to salt content unless the frequency is high (> 50 MHz). This design appears to operate at 0.5 MHz.

Although compensated for, capacitive loading of the electrodes (electrode-to-ground coupling) reduces trigger distance, especially in the far proximity trigger distance (> 20 mm). For this reason it ...

Two tiny ICs and a few passive components can yield a capacitive proximity sensor with excellent sensitivity and extremely fast response time. The circuit’s operation leverages the pulse-front ...

In the last Sensor Sense we looked at capacitive touch switches used for on/off control. ... That, in turn, lets a counter reach a higher count value to trigger the output of the touch circuit.

If you have a project in mind that requires some sort of gesture input or precise movements, it might become a nettlesome problem to tackle. Fear this obstacle no longer: a team from the Wyss Insti… ...

We report the design and installation of a distributed soil moisture sensor network in a riparian zone within the Whitewater Basin in Central Kansas. The soil-moisture monitoring network used in this ...

August 2, 2007 Alps Electric has completed development of the industry’s smallest (4.8mm long x 4.8mm wide x 1.8 mm high) capacitance type pressure sensor to ...

Embedded, capacitive sensors in the handle of the unit track the position of the middle, ring, and pinky fingers, while similar sensors in the trigger and face buttons track the index finger and ...

When asked about adoption of capacitance sensors Aditya notes that “quite a few big biopharma companies utilize capacitance for VCC in cGMP environments but, understandably, not every company ...