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What is A Load Profile in Test and Measurement?

Interface Tech Talk explores load profile, the time-dependent record of the magnitude, direction, duration, and frequency of mechanical forces a test structure or transducer experiences during operation. Learn key load profile questions prior to sensor selection, engineering tips, use cases, and technical considerations when defining your load profile for your test and measurement applications.

How Do Universal Testing Machines Use Load Cells?

Universal testing machines (UTMs) are essential for material qualification, structural research, and quality assurance. Interface load cells sit directly in series with the moving crosshead and the upper specimen grip of a UTM. A machine controller reads the load cell continuously within a closed feedback loop to regulate crosshead travel, maintain constant loading rates, or hold targeted force thresholds during stress relaxation evaluations. The transducer measures the specimen resistance as it deforms. The data acquisition system pairs this instantaneous force data with displacement data to measure elasticity, yield point, and ultimate tensile strength.

What Is the Difference Between Fatigue and Impact Testing?

Interface Tech Talk details why fatigue testing and impact testing are fundamentally different mechanical test methodologies that impose separate physical and electronic demands on measurement hardware. Learn about application differences, load cell and sensor selection, and instrumentation requirements for each type of test.
Moment 101

Moment 101

Interface's 101 Series defines moment as the measure of a force's tendency to cause rotational movement, bending, or tilting when applied at a distance from a fixed point or axis. In force measurement, moment is the physical displacement or rotation that occurs when an unbalanced force acts on an object, and measuring moment in multi-axis sensors provides critical data for a variety of industry applications. Learn more in Moment 101.
INTERFACE TECH TALK Single Load Cell Platform Weighing

Why Use a Single Load Cell for Platform Weighing?

Interface Tech Talk answers how a single point load cell measures the weight of objects placed anywhere on a weighing platform or scale. Interface Single Point Load Cells compensate for off-center (eccentric) loading, have high repeatability and linearity, and have fast response times. For weighing, the single point load cell is a cost-effective solution for OEMs and scale manufacturers. They are simple to install, have a long service life, and require low maintenance. 
INTERFACE TECH TALK Thermal Specifications 1

How Do Thermal Specifications Influence Sensor Selection?

Interface Tech Talk details the differences between compensated and operating temperature ranges in load cell specifications. Thermal variables influence sensor accuracy, the mechanics of static deflection. Thermal gradient, material, strain gages, and repeatability are important when selecting a sensor. Only using capacity ignores the realities of the test environment. A load cell's compensated temperature range is the zone where accuracy is maintained by design. The operating temperature range is the boundary for hardware survival.
Strain Versus Stress

The Divergence in Force Measurement of Strain Versus Stress

Interface details stress testing versus strain testing using force measurement sensors to quantify material deformation and internal resistive forces. Distinguishing between stress and strain is critical for defining test parameters, selecting sensor capacities, and interpreting data from a material’s elastic and plastic regions.
INTERFACE TECH TALK Dut And Uut

What is the Technical Difference Between DUT and UUT?

Interface Tech Talk reviews the subtle differences when referencing a device under test (DUT) versus a unit under test (UUT). The distinction between DUT and UUT ultimately clarifies the test context, whether it is an isolated component under development or a finished unit undergoing final validation.
INTERFACE TECH TALK Torque Wrenches

Why Do Torque Wrenches Use Transducers?

Interface's Tech Talk reviews torque wrenches, applications, and FAQs when combining wrenches with reaction torque transducers to validate the tightness of fasteners, bolts, screws, and other mechanical assembly tools used in aerospace, energy, automotive, and manufacturing. A torque wrench is only as reliable as the data supporting it. Combining a torque wrench with high-accuracy torque measurements from torque transducers and advanced instrumentation provides the validation necessary to protect machines, equipment, products, consumers, and workers.