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Why TCR Repeatability and Long-Term Stability Define Precision Resistor Performance
In the world of precision electronics, resistor selection is often treated as a simple specification exercise. Engineers compare tolerance, nominal resistance, power rating, and Temperature Coefficient of Resistance (TCR), then assume the system will maintain accuracy over time. However, in real-world industrial and instrumentation environments, initial specifications alone rarely determine long-term performance. What separates reliable systems from unstable ones is not day o
3 days ago5 min read


Beyond Pulse Survival: Redefining Reliability with Foil Resistors
In modern electronics, pulse performance is no longer a niche requirement. From industrial automation and aerospace systems to medical instrumentation, EV platforms, defense electronics, and precision sensing applications, engineers increasingly rely on components that can withstand rapid, repetitive electrical pulses without compromising accuracy or stability. One question continues to surface among design engineers and system architects: “Do you have graphs showing Pulse Du
5 days ago5 min read


ESD-Induced Failure in Precision Resistors: Why Foil Technology Changes the Reliability Equation
Introduction Electrostatic discharge (ESD) is one of the most underestimated causes of latent electronic failure in modern systems. Unlike catastrophic electrical overstress events that immediately destroy components, ESD damage is often silent, microscopic, and delayed. Circuits continue to function after exposure, only to experience instability, drift, or complete failure weeks or months later. A recent demonstration shared by VPG, conceptualized by Yuval, highlighted this
7 days ago6 min read


Precision That Outlived Generations: A Case Study on the Long-Term Reliability of S102C Foil Resistors
In an era where electronics are often designed around rapid product cycles, planned upgrades, and aggressive cost optimization, true long-term reliability has become increasingly rare. Yet every so often, a real-world example emerges that reminds the engineering community what “designed to last” genuinely means. A recent post by VPG, conceptualized by Yuval, showcased exactly such a case. The post highlighted a measurement instrument originally built in the early 1980s that c
May 226 min read


When Temperature Becomes the Hidden Failure Mode in Precision Electronics
Understanding Stability, Drift, and the Role of Foil Resistor Technology in High-Accuracy Systems In the world of precision electronics, engineers often focus heavily on signal integrity, electromagnetic interference, and noise suppression. While these factors undeniably affect performance, one of the most significant and underestimated sources of measurement error operates far more quietly: temperature. Unlike sudden electrical failures or visible component breakdowns, therm
May 205 min read


Precision by Design: Why Matched Foil Resistor Networks Outperform Discrete Resistors in High-Accuracy Analog Systems
The pursuit of precision in the world of analog electronics has always been shaped by one fundamental challenge: maintaining stability under real-world operating conditions. While laboratory measurements may initially demonstrate excellent accuracy, long-term system performance depends on how electronic components behave across temperature changes, aging cycles, environmental stress, and operational drift. This challenge becomes especially critical in applications such as med
May 185 min read


The Diamond Within: A Case Study on S-Beam Load Cells and Shear Strain Gage Ingenuity
Abstract In the world of force and weight measurement, elegance often hides beneath simplicity. The S-Beam load cell—frequently described as rugged, cost-effective, and versatile—has endured decades of industrial use not by accident, but through deliberate mechanical and strain measurement design choices. This case study explores the engineering principles behind the S-Beam load cell, focusing on its shear web architecture and diamond-shaped shear strain gage configuration. D
Mar 184 min read


Measuring the Invisible Risk: Using Strain Gage Force Sensors to Detect Overweight and Off-Center Loading in Commercial Trucks
1. Executive Summary Commercial trucking operates at the intersection of safety, compliance, and profitability. While total vehicle weight has long been regulated and monitored, weight distribution particularly off-center loading—remains an under-measured risk factor. An unevenly loaded truck can meet gross weight limits and still pose a significant rollover or jackknife hazard. This case study, inspired by an industry discussion initiated by Yuval Hernik, examines whether st
Mar 114 min read


Integrating Torsional and Axial Strain Gage Grids on a Single Pattern for Multi-Axis Robotic Force Sensing
1. Introduction The evolution of robotics from repetitive, pre-programmed machines to adaptive, intelligent systems has created a fundamental demand: accurate, stable, and compact force feedback. Modern robotic grippers, collaborative robots (cobots), and precision automation systems must not only “see” their environment but also feel it. This case study, inspired by the work and insights shared by Yuval Hernik, explores a critical innovation in strain gage technology: the in
Mar 54 min read


Paddle-Based Airflow Measurement Using Strain Gage Sensors: A Simple Concept Engineered for Precision
1. Introduction Flow measurement has always balanced two competing needs: accuracy and simplicity. While advanced flow technologies such as ultrasonic, Coriolis, or thermal mass meters deliver excellent performance, they often come with high cost, complex installation requirements, and sensitivity to environmental conditions. In contrast, mechanical flow measurement concepts—some dating back decades—continue to prove their value when combined with modern sensing technologies.
Feb 254 min read


Compact, Configurable, and Connected: Advancing Strain Measurement Through Integrated Flex Circuit Sensor Architecture
Abstract As strain and force measurement applications continue to migrate toward compact, embedded, and digitally connected systems, traditional strain gage architectures are increasingly challenged by space constraints, wiring complexity, noise susceptibility, and integration overhead. This case study examines the evolution and practical implementation of miniature strain gage sensors integrated with custom flex circuits and embedded electronics, an approach that significant
Feb 184 min read


Advancing Strain Gage–Based Force and Torque Measurement with FlexCircuits and EMC
1. Introduction Strain gage–based force and torque sensors have long been the gold standard for precision measurement across industries such as automotive testing, aerospace, industrial automation, and materials research. Despite decades of refinement, one aspect of sensor manufacturing has remained stubbornly complex: wiring. As highlighted by Yuval Hernik, traditional strain gage sensor assembly relies heavily on manual processes—cutting, stripping, soldering, routing, and
Feb 114 min read


Reducing Measurement Errors in Quarter-Bridge Strain Gage Applications Through Correct Leadwire Design
Abstract Strain gage measurements are often assumed to be limited by sensor quality, installation technique, or signal conditioning. However, a frequently overlooked source of significant measurement error lies not in the gage itself, but in the leadwire configuration connecting the gage to the measurement instrument. This case study, authored by Yuval Hernik, examines how improper wiring—specifically the use of a two-wire connection in quarter-bridge strain gage applications
Feb 44 min read


Eliminating Wire Routing Errors in Strain Gage Load Cells Through Flex Circuit Integration
1. Introduction In precision force measurement, strain gage load cells remain the backbone of countless industrial, aerospace, automotive, medical, humanoid‑robot and test-and-measurement applications. While material science, machining tolerances, and signal conditioning have seen consistent improvement over decades, one persistent challenge has remained largely underestimated: wire routing errors in strain gage bridge circuits . In a recent industry discussion initiated by Y
Jan 284 min read


Turning a Heim Joint into a High-Fidelity Sensor: How Instrumented Rod Ends Are Redefining Vehicle Dynamics Feedback
Abstract In high-performance vehicles—where milliseconds matter and margins are razor thin—engineers rely on accurate, repeatable data to make informed decisions. Suspension and steering systems, critical to handling, stability, and driver confidence, are traditionally evaluated using indirect methods or external load cells that often introduce noise, complexity, or geometric compromises. This case study explores how a standard Heim joint (rod end bearing)—a widely used mecha
Jan 215 min read


Align First, Measure Right: Eliminating Tensile Tester Errors Using Axial Test Pieces and12-Point Strain Mapping
Accurate material testing is not born in software or sensors. It begins long before data capture, at the moment the test frame is aligned. Yet alignment remains one of the most underestimated variables in tensile testing, particularly when working with small-diameter specimens and low load levels. In a recent LinkedIn post, Yuval Hernik opened a valuable technical conversation on this subject, sharing a real-world alignment process that blends mechanical discipline, sensor in
Jan 143 min read
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