Strain transducers, also called strain sensors, strain gauges or extensometers, are a special type of force sensor and are versatile, being suitable for both static and dynamic measurements. Strain transducers are used to measure deformations that have occurred due to forces acting on an existing body. The strain sensor is quick to install due to the simple screw-on design and can achieve high accuracies, despite the indirect measurement. After mounting and adjustment, the strain is transferred by a frictional connection from the solid element to the strain transducer or strain gauge. Since the transducer is screwed onto the component during use, after adjustment the unit has the characteristics of a force transducer. WIKA offer strain gauges with the following output signals: mV/V, 4 … 20 mA, CANopen, CAN SAE J1939.
The use of strain transducers is particularly suitable for existing systems. In an existing silo or tank, the retrofitting of bending or shear beams for force measurement can be very costly. The strain transducer, on the other hand, is quickly integrated into the application and is a cost-effective alternative. WIKA strain gauges have a high shock and vibration resistance as well as a good long-term stability. Read more about the applications of strain transducers / extensometers in our blog post “Practical applications of strain transducers”.
Possible areas of application:
The strain transducer, strain sensor or extensometer can be used from a strain or compression from 0 … 200 µε up to a max. of 0 … 1,000 µε. The extensometer achieves an overall accuracy of 2 % of the full scale value. For the measurement, the force transducer is fixed to the component using bolts in the area where the corresponding strain occurs.
What is a nominal measuring path?
The nominal measuring path is the spring travel of the outer force application points, or the surfaces of the force transducer, in the measuring direction relative to each other and due to a load with nominal force.
Where can I find information on the minimum validity of the WIKA Build ID?
The information on the minimum validity of the Build ID is displayed when the ID is generated.