Ultrasonic Thickness Gauge Parameter Analysis

Ultrasonic thickness gauge, is the use of ultrasonic pulse reflection principle to measure the thickness of materials (such as metals, plastics, ceramics, etc.) a non-destructive testing equipment. This technology is not only widely used in petroleum, chemical, electric power, shipping, aerospace and other industrials, but also in automobile manufacturing, construction engineering, scientific research and teaching, and many other aspects of its irreplaceable value. Whether it is detecting the wall thickness of pressure vessels, assessing the degree of corrosion of pipelines, or monitoring the aging of structural components materials, ultrasonic thickness gauge can provide timely and accurate data support to help staff find potential safety hazards in a timely manner, to prevent the occurrence of accidents.

In the use of ultrasonic thickness gauge, according to the actual application needs to set the parameters and indicators, which is essential to ensure the accuracy and efficiency of the measurement. In the ultrasonic thickness gauge parameters, probe frequency, resolution and update rate is undoubtedly the key factors affecting its performance and accuracy. In this article, we will analyze these three parameters in detail to help you better understand and use the ultrasonic thickness gauge.

Probe frequency, i.e. the nominal frequency marked on the probe, which refers to the frequency of ultrasonic waves emitted by the probe, is related to the material and thickness of the piezoelectric wafer. The choice of probe frequency directly affects the ultrasonic penetration and the accuracy of the measurement. Probes with different frequencies are suitable for different inspection scenarios. Generally speaking, the higher the probe frequency, the higher the measurement accuracy, but the weaker the penetration; the lower the frequency, the stronger the penetration, but the lower the measurement accuracy.

High-frequency probes: suitable for measuring small, thin-walled materials or samples with small contact surfaces. For example, a 20 MHz delay line probe with a small diameter is able to measure the thickness at the arc of a plastic bottle with a small contact surface.

Low frequency probes: suitable for measuring rough surfaces or thicker materials. For example, the 0.5MHz contact probe, with its larger diameter and stronger penetration, is able to measure the thickness of rubber.

Resolution is an important parameter of ultrasonic thickness gauge, which determines the accuracy of the measurement results. The higher the resolution, the more accurate the measurement results. A high resolution thickness gauge can provide more accurate and detailed inspection results, and is able to capture more subtle thickness variations.

The resolution of the Yu Shi Pioneer Ultrasonic Thickness Gauge PM5 Gen2 can reach 0.0001mm. for occasions where high precision measurement is required, a resolution of X.XXXX should be selected for measurement.

The update rate, also known as the measurement update rate, is another important parameter of ultrasonic thickness gauges that determines the speed of measurement. A higher update rate means a faster measurement that reflects changes in the thickness of the object being measured in a more timely manner, which is important for dynamic measurements or applications that require continuous monitoring.

The YUSHI Ultrasonic Thickness Gauge PM5 Gen2 provides 4Hz, 8Hz, and 16Hz selectable measurement update rates, allowing the user to choose the appropriate update rate according to actual needs. When the fast sweep is required, a higher update rate can be selected to improve measurement efficiency.

To summarize, resolution, probe frequency and update rate are the key parameters of an ultrasonic thickness gauge, and tthey determine the performance and applicability of the gauge. Probe frequency affects the penetration ability and resolution, resolution affects the accuracy of measurement, and update rate affects the real-time measurement. When using an ultrasonic thickness gauge, these parameters need to be considered according to the specific needs of the application.