The voltage amplifier plays an important role in non-destructive testing, which can help to amplify and enhance the signal, thereby improving the sensitivity and accuracy of detection. Below, we will discuss in detail the role and application of voltage amplifiers in nondestructive testing.
Figure: ATA-2000 series high voltage amplifier
A voltage amplifier is an instrument used to amplify a voltage signal, usually implemented using an amplifier circuit. In non-destructive testing, it mainly plays the following roles:
(1) Increase the signal amplitude
Since the signal generated by the detected object is often weak, the signal can be amplified by using a voltage amplifier to increase the amplitude of the signal so that it can be received and analyzed.
(2) Improve the signal-to-noise ratio
In nondestructive testing, signals are often accompanied by noise, which affects the precision and accuracy of testing. By using a voltage amplifier, the signal can be amplified, and the noise can also be amplified at the same time, but compared to the signal, the noise is amplified to a lesser extent, thereby improving the signal-to-noise ratio.
(3) Adjust the magnification
In non-destructive testing, it is necessary to select an appropriate magnification factor according to the signal characteristics of the detected object. By using a voltage amplifier, the magnification can be easily adjusted to meet the needs of different application scenarios.
Recommended Voltage Amplifier: ATA-2041
Figure: ATA-2041 High Voltage Amplifier Index Parameters
In non-destructive testing, voltage amplifiers are widely used in many occasions, such as:
(1) Ultrasonic nondestructive testing
In ultrasonic nondestructive testing, voltage amplifiers are usually used to amplify reflected signals in order to analyze and judge the internal structure and defects of the detected object.
(2) Eddy current nondestructive testing
In eddy current nondestructive testing, the voltage amplifier is usually used to amplify the induced current signal, so as to judge the quality, size and other parameters of the detected object through signal analysis and processing.
(3) Magnetic particle nondestructive testing
In magnetic particle non-destructive testing, the voltage amplifier is usually used to amplify the reflected signal, so as to judge the cracks and defects on the surface of the detected object through signal analysis and processing.
The role and application of voltage amplifiers in nondestructive testing are very extensive. It can help to amplify the signal, improve the signal-to-noise ratio, adjust the magnification, etc., thereby improving the sensitivity and accuracy of non-destructive testing. In a specific application, it is necessary to select a suitable voltage amplifier according to the characteristics and requirements of the object to be detected, and to carry out corresponding debugging and optimization.