Capacitive load cells work on the principle of change in capacitance in response to an applied force. When a force is applied, the change in gap between two capacitive plates leads to a change in capacitance. This change in capacitance is measured as a change in frequency. The iLoad Mini Load Cells output frequency and need the DQ-1000U or DQ-4000U frequency to UART/USB interface devices to output force data. The iLoad, iLoad TR and iLoad Pro sensors are fully integrated load cells with UART/USB digital calibrated outputs that can connect directly with a PC/Mac/Linux computer to display or gather data.
These capacitive load cells are meant for use under controlled room temperature (~25C) conditions and provide data at a maximum of 150 Hz (base models) or 500 Hz (high speed version). These load cells offer accuracies from +/- 0.25% of full scale to +/- 1% of full scale and are considered moderate accuracy, general purpose force sensors.
