Single Zone Sensor0.45mm Thick Trigger Force 10g~20kg Force Sensing Detection-thin Film Pressure Sensor.
 
Product Description
Force Sensitive Resistor are resistive sensor exhibiting vary resistance that responds to force applied to the sensing area. Asforce on the sensor is increased, resistance is decreased.
For the single-zone sensors, as the sensor is a Two-terminal device that can essentially be treated as a variable resistor whose value is controlled by applied force, and also a switch whose threshold is controlled by applied force and setting up.
 
Technical Data and Physical Properties
Thickness: 0.45mm
 Shape:  flexible
Actuation force: 10g, Res.<=200KΩ
Sensitivity range: 10g to20Kg
Operating temperature: -40℃~+85℃
Repeatability Same part: +/-5%, Average R@1000g
 Repeatability part to part: +/-10% Average R@1000g
 
Application Circuit
1. Voltage Divider
The sensor is placed in series with a fixed resistor (R0), and output voltage is measured across R0. It is given by Vout=Vcc*R0/(R0+Rs).
How to define the fixed resistor value, Basically, R0 is 1/3 to 1/2 of the resistance range of Rs. What’s more, if R0 is appropriate, you can get a near-linear curve of Force vs Vout in a special force range. Depending on the impedance requirements of the measuring circuit, the voltage divider could be followed by an op-amp.