Reliable Special Purpose Instruments for Strain Gage Installation and Testing in Automotive, Aerospace, Civil, and Industrial Applications | Micro-Measurements

Micro-Measurements offers a wide range of special-purpose instruments designed to support the installation, testing, and calibration of strain gages (gauges) across various industries. Whether you’re working in automotive, aerospace, civil engineering, or industrial environments, our tools, including spot welders, strain gage (gauge) simulators, and calibrators, ensure that every measurement is accurate and reliable. Our comprehensive instrumentation solutions address key challenges like validating a gage installation and calibration of strain gage instruments, helping you achieve the highest level of performance and accuracy.

The Model 700B Portable Welder

The Model 700B is an update to our Model 700 welding and soldering unit which has been used for decades for installing many thousands of strain gages (gauges) worldwide. It offers a modern, compact design with a removable Lithium-ion battery and has a rugged exterior for use in adverse field conditions.

For more information:

700B welder page

700B datasheet

The Model 700 Portable Welder

The Model 700 is used to install strain gages (gauges) in harsh environments where the stringent surface preparation processes and adhesive cure schedule are difficult or impossible to achieve. Special strain gages are manufactured by bonding a conventional foil gage to a thin shim which can then be spot-welded to a structure. With a rechargeable battery, it can be used to install gages outside in cold, dirty, or wet environments with ease. Additionally, our high-temperature weldable gages enable fast installations on exhausts and manifolds for temperatures approaching 1000°C (1800°F).

For more information:

The Model 700 Portable Welder Product Page

The Model 700 Welder Datasheet
 

The V/E-40 Strain Gage Simulator

An accurate, stable, compact, ive-decade resistor specially designed to simulate the behaviour of strain gages and RTDs, and for use in a broad range of measurement and calibration applications. As a precision strain gage (gauge) simulator, the V/E-40 can be used to measure the nonlinearity of the instrumentation in quarter bridge operation or to verify instrument calibration over the anticipated measurement range. It is also well suited to measuring desensitization of the strain gage circuit due to the finite resistance of the strain gage lead wire system. 

For more information:

V/E-40 Strain Gage Simulator product page

V/E-40 Datasheet

The Model 1300 Gage Installation Tester

The Micro-Measurements  Model 1300 Gage Installation Tester enables quick and simple qualitative measurements that indicate the quality of the installation. Potential damage or degradation can be quickly identified with just three tests - resistance (Ω), deviation (5% and 1%), and insulation (MΩ).

For more information:

Model 1300 Installation Tester product page

Model 1300 Installation datasheet

The 1550B Calibrator

Sound engineering and laboratory practices require that the instrumentation used to make critical strain measurements be periodically calibrated to verify that it is within the manufacturer’s original specifications. Additionally, each type of strain indicator exhibits some degree of nonlinearity, especially for large strains during quarter-bridge operation. Since this is the most common stress analysis application of strain gages (gauges), it is important that the strain indicator be calibrated in this mode. The instrumentation span should also be checked at a number of points before each important test to avoid inaccurate data.

For more information:

The 1550B Calibrator product page

The 1550B Calibrator Datasheet

RS-200 Milling Guide
 

Our RS-200 facilitates measurements of residual stresses which are present in many structures. The high-speed drilling equipment is designed to enable precision drilling of a small hole using a dental turbine to minimize any detrimental effect on the measurement. In combination with a suitable strain gage (gauge) and measuring instrument such as our P3, getting consistent strain values for analysis is made simple. The process follows ASTM E837. Our RS-200 facilitates measurements of residual stresses which are present in many structures. The high-speed drilling equipment is designed to enable precision drilling of a small hole using a dental turbine to minimize any detrimental effect on the measurement. In combination with a suitable strain gage (gauge) and measuring instrument such as our P3, getting consistent strain values for analysis is made simple. The process follows ASTM E837.

For more information:

RS-200 Milling Guide Page

RS-200 Milling Guide Datasheet