Interface provides load cells for adhesive and bond force testing. A shear testing machine uses a load cell to measure the shear strength of bonds and adhesives. A peel test is common for adhesives, adhesive-coated tapes, and paints. Load cells quantify the results and help to determine the failure of the paint and adhesive, an important quality control and design requirement.
The Interface Load Cells 301 Guide is a technical resource for test engineers and measurement device users. It provides comprehensive insights into load cell characteristics, performance, and optimization tips. The essential tool offers technical explanations, visualizations, and scientific details to ensure you understand and maximize the functionality of load cells in diverse applications. Topics include load cell stiffness, on-axis and off-axis loading, natural frequency, calibration loads, extraneous loading effects, and more.
Interface provides complete load cell product datasheets and drawings to locate the features for mounting. Our instructions include model, material, capacity, mounting holes, threads and dowel pins, and pilot specifications for live and dead-end use. Properly mounting a load cell ensures the sensor provides the most stable readings and accurate measurements. Learn more tips by reviewing Mounting Load Cells 101.
Interface Tech Talk experts answer the question how do load cells work. A load cell’s basic function is to take applied force and convert it into an output signal that provides the user with a measurement. This process of converting a force into data is typically completed through a Wheatstone bridge that is comprised of strain gages. There is a bending beam under the load and when weight or force is applied, the change in bend (deflection) results in change in output.
An excitation voltage is needed to power the load cell and ensure the output signal is accurate. Load cell excitation is necessary to ensure the accuracy and reliability of load cell measurements. Interface provides electrical performance data on all specifications represented as VDC MAX, when applicable. The data for excitation voltage is listed under the electrical section of a transducer model’s specification datasheet, along with other factors, including rated output, bridge resistance, and zero balance. Learn more in our 101 Series that answers the most frequently requested questions about load cells and force measurement.
Interface defines creep, an important accuracy specification for load cells, in the essential 101 Series. When a force is applied to a solid material within its elastic limit, the resulting deflection will subtly increase over time if the force is held constant. This phenomenon, known as creep, is not permanent but recoverable. It's important to note that the signal from a load cell exhibits this creep, making it a key consideration in all load cell applications.
Scott Dunne is an experienced engineer. Faces of Interface highlights his expertise and career path to his role as Production Engineering Manager at the force measurement solutions market leader.
