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Mastering The Signal Chain in Test and Measurement

In test and measurement, Interface defines the signal chain as the interconnected hardware and software continuum that converts a physical event into validated engineering units. It encompasses the raw strain gage bridge from a load cell, regulated excitation sources, local analog conditioning, filtering, high-resolution digitization, network transmission, and the final analytical software interface. Learn engineering tips, application highlights, and why modern test and measurement requires planning for the entire signal chain to preserve data integrity.
Smart Load Cells

Intelligent Metrology Adopts Smart Load Cell Technologies

Interface smart load cell technologies integrate internal or in-line digitizers, smart instrumentation, and IO-Link capabilities to transform sensors into active, digital devices. The shift toward intelligent force measurement highlights the fact that digitizers and IO-Link communication protocols provide the pipeline for modern data transmission, and accuracy depends on the physical integrity of the primary transducer. Interface load cells are designed for intelligent metrology and smart systems.
High Fidelity 101

High-Fidelity 101

Interface 101 series details high-fidelity (Hi-Fi), a term referencing how accurately a measurement system reproduces the characteristics of a physical input. Load cell users may require a high-fidelity system where the digital output precisely reflects the mechanical force applied to the sensor. This integrity must be maintained throughout the entire signal chain, from the physical deformation of the strain gage to the final data output. Hi-Fi is very important in aerospace, additive manufacturing, and product efficiency such as lightweighting.
Bias And Variance

Bias and Variance for Benchmarking Outcomes in Force Measurement

In load cell selection, understanding the relationship between bias and variance is defined by sensor specifications. Interface details how these engineering concepts dictate performance, improve design, and optimize benchmarking outcomes using force measurement systems.
Torque Transducers Review

Torque Transducers Review Plus Glossary of Torque Terms

Interface torque transducers measure the twisting force or moment applied to an object. Review our torque glossary, engineering tips, and fundamentals about torque measurement, including a review from Interface's popular Torque 101 webinar.
INTERFACE TECH TALK LOAD CELL CONDITIONING

What is Load Cell Conditioning?

Interface Tech Talk defines load cell conditioning as taking the native signal from a load cell and converting it into a form for further processing or display. The raw signal from a load cell is in the millivolt range. Load cell conditioning is valuable for amplifying, filtering, and converting the raw signal from a load cell.
Decoding Sensor Comm Protocols Recap

Decoding Sensor and Instrumentation Communication Protocols Webinar Recap

Interface's Decoding Sensor and Instrumentation Communication Protocols provide valuable insights into the relationship between measurement technologies and communications. Watch the webinar to learn about components used in different environments to connect sensors and instrumentation to existing networks. The communication protocol used to transmit data from the load cell to the data acquisition system can affect accuracy and precision. Get tips, key considerations, connection examples, and more from this ForceLeaders event.
INTERFACE 101 EXCITATION

Excitation Voltage 101

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.