9JAN - FEB 20259Oct-Nov 2020Load cells, strain gauges, and force-sensitive resistors (also known as piezoresistive sensors) are three of the most common force-sensing technologies embedded into devices todaySome providers have online stores offering a wide array of sensor sizes, force ranges, and operating capabilities. These are great to have during the prototyping/proof-of-concept design stage, especially if the application may need to function in challenging operating conditions (e.g. high temperature, high humidity, etc.). Specifically in the case of force-sensitive resistors, some standard sensor types can be trimmed or modified to fit into specific spaces. Also, take note of any out-of-the-box development kits that can help make the integration process more efficient. 2. Consider the mechanical and electrical limitations of your design. Smart devices that are both compact and power efficient will always be key features to customers. Naturally, embedding force-sensing capabilities into a device can prompt mechanical and electrical challenges to any device design. From a mechanical perspective, an obvious appeal for some sensing technologies will be their ability to fit within or conform around tight space constraints. But another benefit may be the ability to connect the sensor to the device through different methods. This freedom helps reduce design revisions, or the need to design more electronic components to effectively power the sensor. Sensor types that can prove superior linearity and repeatability will go a long way in becoming a successful feature in a design. An easy calibration process and the ability for the sensor to operate on simple circuitry, all contribute to a smoother integration process. 3. Does the provider offer a variety of value-added integration resources and expertise?Most force sensor providers will say and do all of the right things at first, but taking a closer look at their history and capabilities may reveal some potentially costly surprises. It's important to partner with a company that can demonstrate a history of success in assisting design engineers through the integration process.Certain providers will have integration resource literature available for download off of their websites. These show that the company understands the integration process, and can be trusted to help your design team stay efficient. Smart Decisions Save Time, Money, and StressThe old adage "you get what you pay for" takes on a much more complex meaning when evaluating embedded force-sensing technologies. Curiosity may be in the design engineer's DNA, but as a major stakeholder in your company, keeping these key cost-saving tips in mind can help your design team stay within spec, within budget, and within deadline.
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