When compared to the readability of 1 part in 5,000 and accuracy of 1/10 of 1% offered by strain gage scales, our Ultra Precision Scales offer a remarkable readability of 1 part in 100,000 – 20 times better than strain gage scales
The frequency at which this wave oscillates between the two depends on the distance between them, which in turn is directly related to the bending of the spring element (and therefore the weight of the object on the platform).
We attach a transmitting and receiving SAW transducer at either end of the spring element. When weight is applied to the platform, it causes the spring element to bend and creates a bulk wave in the element’s substrate.
Yet instead of using strain gages to detect the strain placed on the spring element, we’ve applied our internationally patented surface acoustic wave (SAW) technology, which registers the displacement of the spring element.
When developing our Ultra Precision Scales, we use the same basic theory of load cell design seen in strain gage scales because of the stability, durability, and ruggedness it offers. Within this load cell is a device called a spring element.
