Application Cases

About Sensor-Related Testing

In modern industry and scientific research, sensors, as key devices for acquiring external information, are crucial for performance testing.

Power amplifiers, as an essential component of sensor testing systems, play an indispensable role in the research field of sensor testing. This time, Aigtek Antai Electronics will share some past experimental cases in the direction of sensor testing, hoping to be of help to engineers in the field of sensor testing.

Experimental Case Displays

▼Application of High-Voltage Power Amplifiers in the Design of Biomimetic Underwater Acoustic Receivers

In this experiment, an underwater acoustic measurement system was set up to investigate the reception gain and directionality of biomimetic underwater acoustic receivers. The data acquisition card generates an excitation pulse waveform, which is amplified by the power amplifier and then applied to the underwater acoustic transducer to radiate sound waves into the water. A hydrophone is embedded at the rear end of the biomimetic acoustic receiver to receive the sound pressure amplitude in real-time.

▼Application of Broadband Amplifiers in Fiber-Optic Ultrasonic Sensors for Ultrasonic Detection in Solid/Liquid Environments

In this experiment, a sine signal output from the signal amplifier is used to drive the piezoelectric ceramic probe through the power amplifier to excite continuous and pulsed ultrasonic signals of different frequencies. The ultrasonic detection characteristics of fiber-optic ultrasonic sensors and reference piezoelectric ceramic probes are compared in solid and liquid environments to verify the ultrasonic detection characteristics of fiber-optic ultrasonic sensors.

▼Application of High-Voltage Power Amplifiers in the Performance Testing of Current Sensors

In this experiment, an experimental circuit was set up to experimentally study the linearity of the steady-state response to AC and DC currents and the frequency response characteristics of the optical current sensor. A signal generator and power amplifier combination forms an adjustable input current source with arbitrary waveform. A clamp-type standard current probe is used to measure the actual value of the input current, and the steady-state performance of the sensor is tested, completing the performance testing of the developed optical current sensor.

▼Application of High-Voltage Amplifiers in the Testing of Electric Field Sensors with Sensitivity-Enhanced Corrosion-Inclined Gratings in Liquid Crystals

In this experiment, a temperature-insensitive electric field sensor using HF etching of inclined gratings in a high-refractive-index solution (E7 liquid crystal) is proposed. The fiber-optic electric field sensor uses the transmitted light of the TFBG accessed by the broadband light source BBS through the OSA. The inclined grating is etched with HF acid, and the liquid crystal LC is embedded in the grating to effectively excite the inclined grating and enhance the detection electric field sensitivity.

▼Application of Power Amplifiers in String Vibration Self-Powered Mechanical Wave Communication Systems

In this experiment, a vibrator serves as one end for transmitting signals, while the other end is a designed triboelectric sensor, connected by a thin string to form a string vibration self-powered mechanical wave communication system. The signal generated by the signal generator is amplified by the power amplifier to drive the vibrator. The signal is transmitted through the string to the triboelectric sensor, where it is received and processed to achieve the generation, transmission, and decoding of modulated signals.

▼Application of High-Voltage Amplifiers in Electric Field Sensor Testing

In this experiment, a high-voltage amplifier is used to amplify the voltage signal generated by the signal generator, which is connected to two parallel copper plates to create a uniform electric field between them. By adjusting the gain of the signal generator and the high-voltage amplifier, the electric field strength and frequency range of the electric field are adjusted. The output signal of the electric field sensor is detected, collected, and the relevant performance parameters are calculated.

More Application Case Shares

After years of accumulation, Aigtek has now established its own power amplifier application case library, gathering cutting-edge experimental research results to help researchers better expand their thinking and break through innovation! More power amplifier application cases will be shared with everyone in the future, so stay tuned.