Advancing Load Button Load Cell Capabilities with ConvexBT
Demands for high precision testing utilized for compact designs and in confined spaces is growing. The requirements for quality, accuracy, and, most importantly, reliability have driven the experienced engineers at Interface to create the newly released ConvexBT™ Load Button Load Cell product line.
The revolutionary design of the ConvexBT is a first-of-its-kind load button load cell, providing better temperature resistance and more enhanced eccentric load rejection. Miniature load cells categorized as load buttons have been sensitive to off-axis, eccentric, or misaligned loads. This means if the load is not exactly perpendicular to the surface it is resting on, the data could become skewed or inaccurate.
Interface designed the ConvexBT™ Load Button Load Cell to confine misaligned loads to the cell’s primary axis, providing superior performance compared to similar products on the market in terms of repeatability, better data, and reproducible results.
“As technology advances, there is a growing demand to make devices and products more compact and convenient. This trend is happening across industries and is especially prevalent in medical, industrial automation and products reliant on advanced communications technology. To design and validate these products, our customers need force-sensing solutions that can fit in confined spaces and provide extremely accurate data. This is the driving force behind the development of ConvexBT, the next generation in force measurement device.” – Ted Larson, VP product management and marketing, Interface.
CONVEXBT FEATURES AND SPECIFICATIONS
The newly released ConvexBT product comes in two sizes: 3/8-inch and 1/2-inch, both manufactured from 17-4 PH heat-treated stainless steel. These options provide a wide measurement range from 10 to 250 lbf, a compensated temperature range of 60° to 160°F, and an operating temperature range of -40° to 175°F.
Additional specifications for ConvexBT include:
- 2.00 ± 20% mV/V rated output
- ± 0.25 non-linearity as a percentage of full scale
- ± 0.25 hysteresis as a percentage of full scale
- ± 0.50 static error band as a percentage of full scale
Other load cell load button designs have also been extremely sensitive to temperature conditions. Interface has redesigned its ConvexBT ultra-precision product line of load buttons to ensure that this is no longer something the user has to account for by removing the sensing technology disrupted by temperature from the cable and integrating it directly into the load button.
The newly available ConvexBT models include the following capacities:
- ConvexBT Model LBSU-10 lbs 3/8″
- ConvexBT Model LBSU-25 lbs 3/8″
- ConvexBT Model LBSU-50 lbs 3/8″
- ConvexBT Model LBSU-100 lbs 1/2″
- ConvexBT Model LBSU-250 lbs 1/2″
Additional model capacities will be available this year. You can view the complete product specifications and the technical guide on the product page here.
“ConvexBT was developed through a combination of intense research into growing technology trends in force measurement and actively collaborating with our customers to understand their unique challenges, By introducing the industry’s most advanced and versatile ultra-precision load button load cells, we are solving the test and measurement challenges associated with miniaturization of existing and new technologies.” – CEO at Interface
The revolutionary ultra-precision line of ConvexBT™ Load Button Load Cells uniquely uses multi-point calibration to test force on miniaturized products and in confined spaces, where accuracy is paramount to success and safety. The requirements are critical to common buyers of miniature load cells, especially for use in medical devices, robotics, and in industrial automation applications
In addition to its ability to solve test and measurement challenges with compact devices, another key benefit of ConvexBT is its versatility, in that it can be used as a traditional test and measurement solution. It can also be installed into OEM components and devices as an advanced miniature sensing solution to collect accurate, real-time force data on the product as it is in use.
ConvexBT is now available as part of the Interface Mini® Load Cells product family. The product is part of a growing line of Interface Load Button Load Cells. The new ConvexBT model LBSU specifications are available here: /product-category/load-button-load-cells/.
Read more about Off-Axis Loads and Temperature Sensitive Applications here.
