Strain Gauge in Australia: How to Choose the Right One

Understanding What a Strain Gauge Does

At its core, a strain gauge measures deformation. As a force acts on the substance, the latter either stretches or compresses. The strain sensor detects these changes and converts them into an electrical signal that can then be analyzed and interpreted.

In areas like tensile testing, even small differences can impact the classification and approval of materials. This is why it is as important for strain sensors to have high quality and applicability as it is for the test apparatus itself.

Consider the Type of Testing You’re Performing

Not all strain gauges are created equal. The kind of strain gauge you opt for should depend on the nature of your testing operations.

For instance:

• Strain gauges made of foil are common and versatile
• Semiconductor strain gauges provide increased sensitivity, but could be susceptible to temperature changes
• Weldable strain gauges are best for extreme testing conditions

Should your testing involve universal testing machines, you will need a strain gauge that works well with your testing equipment.

Think About Material Compatibility

Each material reacts uniquely to stress conditions, which means that the type of strain gauges used must correspond to each of the tested materials.

For example, the strain gauges required for testing flexible polymers must withstand high strains, while for steel, which is rigid, highly sensitive strain gauges are required due to the lower strain.

Environmental Conditions Matter

The different kinds of environments in Australia, from moist coastal regions to dry inland areas, affect the testing conditions. Factors such as temperature, humidity, and dust affect the strain gauge.

When choosing the right strain gauge, consider the following criteria:

• Temperature range
• Resistance to humidity and corrosion
• Encapsulation

By using the right strain gauge for your environment, you get accuracy and durability.

Accuracy and Calibration

Accuracy is critical in all measurements. Misuse of a strain gauge or improper calibration will result in inaccurate measurements, affecting the quality of the end products.

Choose a strain gauge that:

• Offers high accuracy
• Is easy to calibrate
• Complies with testing standards

When used with an accurately calibrated universal testing machine, a reliable strain gauge ensures accuracy.

Integration with Your Testing Equipment

The strain gauge you buy must be compatible with your system to facilitate easy installation. Compatibility is very important, as strain gauges today are used in integrated systems, which allow for digital analysis.

It is easier to integrate when you are buying from a reputable company such as Test Machines Australia, because they have experience doing it.