Strain Gauge Fundamentals

Strain gauges have been around for almost 80 years and continue to be key assets for measuring fatigue and testing materials for productivity and safety reasons. Buthow do I calculate material stress from strain?How can I select the right strain gauge and install it correctly? Our experts dug deep to provide their best answers for you about all the important questions regarding strain measurement using strain gauges. Click an option below to direct you to the content on the page.

  1. Basics of Strain Measurements and Experimental Stress Analysis
  2. Selecting the Right Strain Gauges, Adhesives, Covering Agents and More
  3. Installation of Strain Gauges: All there is to Know
  4. Reduction and Elimination of Measurement Errors 
  5. Acquiring Data with the Right Hardware and Software 
  6. Training, Webinars and References on Strain Measurements

1. Basics of Strain Measurements and Experimental Stress Analysis

How does an Electrical Strain Gauge Work

Watch this video to learn how an electrical strain gauge works.

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应变测量名词解释

技术名词的实用指南,帮你精确了解与应变测量相关的术语和概念

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惠斯通电桥电路

惠斯通电桥可以用各种方式测量电阻:通过与已知电阻比较来确定电阻绝对值, 测定电阻的相对变化. 基本原理和理论.

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参考书

应变计已经成为应力分析 元件优化,安全测试和技术研究的必备工具. 勇士也是测量传感器制造的主要部件.

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2. Selecting the Right Strain Gauges, Adhesives, Covering Agents and More

如何选择合适的应变片

在选择正确的应变片之前,需要明确测量目标。首先要考虑的问题是应变片将用于应力测试还是传感器制造。

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Selecting Adhesives for Strain Gauge Installation

The bonding materials have the task of firmly attaching the strain gauge to the measured object’s surface and transferring the object’s deformation without loss to the strain gauge. The various conditions and influences, and application options, require different bonding materials and installation methods.

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Selection and overview of covering materials

采用应变片进行测量的质量基本上取决于测量点的设计和安装。安装表面的准备,正确连接和保护层是其中的重要因素。

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3. Installation of Strain Gauges: All There is to Know

Welding or Bonding Strain Gauges?

How to identify the perfect connection for your strain gauges.

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正确焊接应变片

一些环境不适合黏贴应变片,尤其是极低的温度或是遍布灰尘的环境。

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应变片快速安装的 10个技巧

应变片安装是件费事费力的事,您是否知道一些简单的技巧,能够帮您节约大量安装时间? 观看我们为您制作的视频,了解应变片快速安装的 10 个技巧

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参考书

应变计已经成为应力分析 元件优化,安全测试和技术研究的必备工具. 勇士也是测量传感器制造的主要部件.

Read more

如何安装应变片 - 视频

应变片安装视频:了解如何有效安装应变片,以及如何确定安装过程是否正确。

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应变片无铅焊接技术

This article gives hints how to perform lead-free soldering of strain gauges professionally and how to ensure high a reliability in your measurement.

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黏贴应变片到螺栓上

Article on the installation and usage of the LB11 strain gauge from HBM. Find out how to easily measure axial load on bolt elements.

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如何接线螺栓应变片

It is difficult to bond a strain gauge to a bolt while measuring the tightening stress. This article provides helpful instructions on how to solve the issue

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4. Reduction and Elimination of Measurement Errors

应力测试提示与技巧

Our series of articles addresses possible sources of error when strain gauges are used in experimental stress analysis and shows how to successfully assess

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文章: 应变片温度补偿

在本文中,我们将向您介绍使用应变片时,哪些(不需要的)温度影响会影响测量结果。并帮助您最大程度地减少这些影响或完全补偿。

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导线电阻补偿

测量点,例如在桥梁或飞机机翼,通常离测量仪器非常远。不能直接靠近测量点测量,需要使用长电缆连接。缺点:在电缆导线电阻一般达几欧姆,会对测量产生负面影响。特别是在测量过程中电阻产生变化,例如温度变化,其将会对产生较大的测量误差。

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应变系数偏差

This Tech Note shows how the gauge factor influences the results and why it is so important to take the specified value from every individual strain gauge.

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5. Acquiring Data with the Right Hardware and Software

How to work with strain gauges in catman AP

In this tutorial you will learn how to set up strain gauge rosettes by using HBM's catman®AP data acquisition software and a QuantumX MX1615 data acquisition system.

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Strain gage ¼ bridge calibration with shunt signals

Strain gage ¼ bridge calibration with shunt signals

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Linearity and Sensitivity Error in the Use of Single Strain Gages with Voltage-Fed and Current-Fed Circuits

Linearity and Sensitivity Error in the Use of Single Strain Gauges with Voltage-Fed and Current-Fed Circuits

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6. Training, Webinars and References on Strain Measurements

应用案例

全球数以万计的客户都非常信赖 HBM 高精度,高可靠的测量结果。我们的测试和测量设备,软件应用于全球很多行业和领域。缩短研发周期,提高生产效率,改善产品质量。

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展会与研讨会

Bring your measurement technology knowledge up to date with professional development training, workshops and webinars.

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