User Guide for FSR Sensor

FSR
®
Integration Guide & Evaluation Parts Catalog
With Suggested Electrical Interfaces
Force Sensing Resistors
®
– An Overview of the Technology ......................................................... Page 3
Force vs. Resistance.............................................................................................................. Page 3
Force vs. Conductance.......................................................................................................... Page 4
FSR Integration Notes – A Step-by-Step Guide to Optimal Use .................................................... Page 6
FSR Usage Tips – The Do’s and Don’ts ......................................................................................... Page 8
Evaluation Parts Catalog – Descriptions and Dimensions ............................................................... Page 9
General FSR Characteristics ........................................................................................................... Page 12
Simple FSR Devices and Arrays........................................................................................... Page 12
For Linear Pots .................................................................................................................... Page 13
Glossary of Terms ............................................................................................................................ Page 14
Suggested Electrical Interfaces - Basic FSRs ................................................................................ Page 16
FSR Voltage Divider .......................................................................................................... Page 16
Adjustable Buffers .............................................................................................................. Page 17
Multi-channel FSR to Digital Interface .............................................................................. Page 18
FSR Variable Force Threshold Switch ............................................................................... Page 19
FSR Variable Force Threshold Relay Switch ..................................................................... Page 20
FSR Current-to-Voltage Converter .................................................................................... Page 21
Additional FSR Current-to-Voltage Converters ................................................................. Page 22
FSR Schmitt Trigger Oscillator .......................................................................................... Page 23
Interlink Electronics manufactures custom FSR devices to meet the needs of specific customer
applications. FSR devices can be produced in almost any shape, size, and geometry.
To discuss custom design or to obtain a quote, contact Interlink Electronics at [phone].