User Manual

VMA334
V. 01 – 08/08/2018 3 ©Velleman nv
5. Overview
VMA334
This FSR (Force Sensing Resistor) will vary its resistance depending on how much pressure is being applied
to the sensing area. A 2.54 mm male pinheader is provided making it easy to use it on breadboards.
sensor type: single point
shape of sensitive area: round
diameter of sensitive area: 10 mm (+/- 1 mm)
total length: 39 mm
sensor thickness: 0.2 mm
material: polyester
range: 100-1000 g
terminal: male pinheader step 2.54 mm
principle: piezo-resistive
service life: > 500.000 times
operating temperature: -25 °C to 90 °C
6. Calibration Table
Pressure (kg)
Resistance (kΩ)
0.2
355
0.3
213
0.4
52.9
0.5
30.8
0.6
19.33
0.7
12.82
0.8
10.03
0.9
8.66
1.0
8.01
7. Example
The value of the resistor is as example only. Practically, a resistor of about 220 kΩ should be used depending
on the application.