Category: Product

A linear variable differential transformer, or LVDT, is a type of transducer used for measuring linear displacement. Known as one of the most robust, reliable sensors available on the market, LVDTs from Cooper Instrument & Systems are long-term solutions with a virtually infinite lifespan.

How Do LVDTs Work?

An LVDT displacement transducer is made up of one primary and two secondary coils. A magnetic core (armature) controls the transfer of current between the primary coil and the secondary coils. The two secondary coils are connected in opposition and, because they are equal, read zero on the sensor output. As the armature moves away from center, one of the position sensors increases and the other decreases. The result is an output from the measurement sensor.

What Are LVDTs Used for?

Because of their durability and accuracy, LVDTs are used for a variety of applications. There is a long list of common uses, but some of the most popular include testing soil strength, controlling pill production, inspecting assembly lines, and monitoring fluid levels.

Why Choose LVDTs?

The biggest strength of the LVDT sensor is its ability to function with no electrical interaction across the transducer position sensing element. The result is clean data and infinite resolution. Other benefits include an unlimited mechanical life, single-axis sensitivity, environmentally-strong construction, and fast response times. All of these features combine to make an LVDT sensor a sound investment for the future.

At Cooper Instruments & Systems, we offer two types of LVDTs. Both the AC/AC and DC/DC versions can be purchased with captive, unguided, or spring return armatures. Fill out our online form to learn more or call us at 1-800-344-3921.

Types of Test Stands

At Cooper Instruments & Systems, we are focused on providing quality solutions for all your needs. That’s why we carry a number of different test stands for our customers. No matter the application or capacity needed, we are here to provide you with the custom test stands necessary to get the job done right.

T-Rex Test Stand

The T-Rex Test Stand is known to work well under pressure. Just as the name suggests, this stand has been designed to work with a variety of materials, components, and tests. Its new and improved heavy-duty design includes a counterbalanced bolster, improved geometric accuracy, moveable cylinder position, an anti-cylinder rotation device, modular electronics packaging, and aluminum extruded components. T-Rex test stands are often used for materials like concrete, metals, plastics, paper, wood, and more. Furthermore, Cooper Instruments & Systems can work with you to develop a custom design perfect for your situation.

Custom Test Stands

In addition to the T-Rex Test Stand, we offer a number of other custom stands. We understand that no two jobs are the same, and we are happy to work with you to design a stand that meets your specific needs. Here is a look at two samples we have designed:

Force Calibration Machine (FCM)

The FCM is a preferred instrument because of its low cost and large range of force. This test stand serves as an in-house quick check system that allows customers to quickly verify the accuracy of their compression force measuring device without slowing down the process.

Cooper Tensile Tester (CTT)

Designed for clients working in a manufacturing environment, the CTT can be used for high load applications up to 20K+. This instrument is durable and accurate making it a worry-free solution for customers who need a precise instrument in a busy setting.

If you have additional questions about test stands or how to choose the right one for your application, call us at 1-800-344-3921 or fill out our online form!