Force sensing resistors, or FSRs are sensors that allow you to detect physical pressure, squeezing and weight. They are our mini helpers that tell us how hard we are pushing or squeezing something. But how valid are these FSRs? So, let’s take a look at force sensing resistors to get an idea of how precise they are and how we can ensure that they provide us with accurate measurements.
Understanding How FSRs Work
To understand how accurate force sensing resistors are, it’s useful to know a bit about how they work. The FSRs are composed of a material whose electrical resistivity varies according to the pressure exerted on them. This change can be quantified and converted into a force measurement. But FSRs may not always provide us with the specific force measurement that we desire. That’s why it is crucial to test and calibrate them frequently.
How to Test FSR Accuracy
We can test the accuracy of force sensing resistors in a few different ways. One simple way is to add known weights or forces on the FSR and compare what it reads to the actual force we applied. We can also reference special equipment to verify the accuracy of the FSRs. These tests allow us to determine whether the FSRs are providing reliable, consistent measurements.
Calibration of FSRs for Accurate Measurements
It’s important to calibrate force sensitive resistors so that they measure force accurately. Calibration refers to the procedure of modifying the FSRs to a force of known value. This procedure acts to correct and errors in measurement. Some examples are to apply forces to the FSRs in known amounts and adjust users settings until the FSRs are reading correct values. Frequent calibration is necessary to maintain accuracy of FSRs over time.
Variables Affecting Accuracy of FSR
force sensing resistor are subject to several factors that can impact their accuracy. Environmental factors such as temperature and humidity may affect FSRs operation. Mechanical considerations, too, can influence accuracy (e.g., thickness of the material overlying the FSR, size of the contact area). Knowledge of these factors is necessary for obtaining reputable force-measurements.
Suggestions for improving performance of FSRs
Here are three tips to help you to maximize the potential of force sensing resistors. Properly installing and keeping the FSRs clean and calibrating them correctly are all important if you want to get accurate force measurements. Regular FSR testing and calibration seem very important to keep the FSRs accuracy and reliability. By adhering to these guidelines, we can ensure that our force sensing resistors provide us with consistent, accurate readings every single time.
Conclusion
force sensitive resistor are an important localization and application force or pressure measuring and monitoring. Understanding how accurate they are, testing their accuracy, calibration quite often and guidance on things that can effect accuracy and tips to be reliable in getting force measurements is all important to gain the desired results.’ If we take care of these, then we can rely on our force sensing resistors to provide us with reliable and consistent results whenever we require them.
