Description
The digital ultrasonic thickness gauge determines the thickness of a part or structure by accurately measuring the time required for a short ultrasonic pulse generated by a transducer to travel through the thickness of the material, reflect from the back or inside surface, and be returned to the transducer. The measured two-way transit time is divided by two to account for the down-and-back travel path, and then multiplied by the velocity of sound in the material.
Capable of performing measurements on a wide range of material, including metals, plastic, ceramics, composites, epoxies, glass and other ultrasonic wave well-conductive materials. Differnet transducer models are available for special application, including for coarse grain material and high temperature applications.
The velocity of sound through a substance is dependant upon its temperature. As materials heat up, the velocity of sound through them decreases. In most applications with surface temperatures less than about 100°C, no special procedures must be observed. At temperatures above this point, the change in sound velocity of the material being measured starts to have a noticeable effect upon ultrasonic measurement. At such elevated temperatures, it is recommended that the user perform a calibration procedure on a sample piece of known thickness, which is at or near the temperature of the material to be measured. This will allow the gauge to correctly calculate the velocity of sound through the hot material.
Features of the thickness gauge
- Operating temperature: -20 to 60 °C
- Relative humidity <=90
- Multi-mode: Pulse-Echo mode (P-E mode) and Echo-Echo mode (E-E mode). In Echo-Echo mode, it can test the wall thickness eliminating paint or coating thickness.
- Wide measuring range: Pulse-Echo mode: (0.65 to 600)mm (in Steel). Echo-Echo mode: (2.5 to 100)mm
- V-Path correction to compensate the nonlinearity of the probe
- Color TFT display (320×240 TFT LCD) with adjustable backlight, allow the user to work at worksites with low visibility.
- Non-volatile memory can store 100 groups of test thickness. One hundred records max for each group.
- Two AA size alkaline batteries as the power source. Continuous operating period of no less than 100 hours (default brightness setting). Display Standby and Auto Power Off functions to save power.
- Bluetooth module
