Use high-voltage amplifiers and amplified signal generators to solve high-power capacitive load problems

When many customers use the signal generator, they find that it has no power output and the output amplitude is only ±10V. It is prone to problems such as low output voltage, weak load capacity, and inability to obtain high-power capacitive loads such as ultrasonic transducers. This problem How to solve it?

Antai Test provides customers with a perfect solution for such situations. It uses high-voltage amplifiers to amplify the voltage and power generated by the signal generator to measure the amplitude characteristics, frequency characteristics, transmission characteristics and other characteristics of various telecommunications systems or telecommunications equipment. When measuring electrical parameters, as well as when measuring the characteristics and parameters of components, it can be used as a signal source or excitation source for testing.

The high-voltage amplifier developed by Antai can match any brand of signal generator, such as Tektronix, Puyuan, Keysight Technology, Rohde & Schwarz and other well-known domestic and foreign brands. Input the signal into the amplifier through the signal source, control the required output voltage by adjusting the amplification factor, and achieve the purpose of driving the load. Observe the output voltage and waveform through an oscilloscope. Paired with a high-voltage amplifier, it can ensure that the voltage is increased to a maximum of 1600Vpp and 1000W power without distortion of the signal, and the amplified waveform is not distorted within a certain frequency range.

For example, when doing non-destructive testing experiments and piezoelectric ceramic drive tests, electromagnetic ultrasonic non-destructive testing technology is a flaw detection technology based on the principle of electromagnetic induction. The electromagnetic ultrasonic transducer does not require a coupling medium and can be used under high temperature, high speed and other conditions. Inspection work has attracted much attention in the field of non-destructive testing. As the core device of the electromagnetic ultrasonic detection system, the ultrasonic signal generated is very small and requires high-voltage and high-power circuits to drive it, which requires a high-voltage amplifier to realize this function.

ATA-2082 is an ideal dual-channel high-voltage amplifier that can amplify AC and DC signals. The maximum output is 800Vp-p (±400Vp) high voltage, which can drive high-voltage loads. The voltage gain is digitally adjustable, and commonly used settings can be saved with one click, providing convenient and simple operation options. It can be used with mainstream signal generators to achieve perfect signal amplification.

The input is a BNC interface, with two optional input resistance levels of 50Ω and 5kΩ, perfectly matching high and low internal resistance signal sources.

The output is a banana socket, the maximum output voltage is 800Vp-p (±400Vp), and the output current is 40mAp.

The voltage gain is numerically controlled and adjustable from 0 to 120 times, specifically divided into two types: coarse adjustment (1 step) and fine adjustment (0.1 step). Combined with the gain display on the LCD panel, it can be quickly adjusted to the required voltage value.

After the signal generator is connected to a high-voltage amplifier, an oscilloscope is used to measure the waveform and frequency of the signal generated by the signal generator in real time. When the power indicator requirements are met, circuit testing is performed to solve the problem of weak load capacity and further analyze the performance of the test circuit. index.