Application Cases

With the development of smart IoT, wearable smart devices, healthcare, security monitoring, smart vehicles, machine vision systems, and cell engineering, various industries are demanding higher performance from actuators. Precision control and high-efficiency driving technologies have become urgent needs across industries. Piezoelectric actuators, known for their high precision, small size, immunity to electromagnetic interference, light weight, and rapid response, have garnered widespread attention.

The ATA-2000 series of high-voltage amplifiers from Aigtek can amplify voltage signals of arbitrary waveforms, meeting the testing requirements for different waveforms in experiments. With a wide range of power amplifier models, they can drive the vast majority of piezoelectric transducers available on the market.

Experiment Name: Design and Experimental Study of Parallel T-Type Piezoelectric Inertial Actuators

Experiment Principle:Piezoelectric transducers exhibit strain proportional to the magnitude of the applied electric field, a phenomenon known as the converse piezoelectric effect. This effect enables piezoelectric materials to deform under the influence of an electric field, thereby converting electrical energy into mechanical energy.

Experimental Block Diagram:

Experimental Photograph:

Experimental Process:

A signal generator produces periodic signals, which are then amplified by the power amplifier ATA214 and applied as excitation voltage to the T-type piezoelectric transducer. An oscilloscope tests whether the amplified voltage from the power amplifier is normal, while a laser micrometer measures the displacement curve of the slider. Finally, the data is saved and processed on a computer.

Experimental Results:

For the T-type piezoelectric transducer, a metal substrate thickness of 0.4 mm was chosen based on the amplitude and resonant frequency. Increasing the mass of the drive rod significantly reduces the resonant frequency of the second-order mode, leading to the selection of carbon fiber as the material for the drive rod. By altering the stiffness of the support structure, it was found that differences in elastic clamping rings due to processing or material have minimal impact on the second-order mode of the T-type piezoelectric transducer. Finally, impedance simulation and strength verification were conducted on the T-type piezoelectric transducer, confirming that it meets the requirements for resonant frequency and strength.

Application Directions: Precision Driving Field

Application Scenarios: Lens positioning, piezoelectric dispensing valve, micro-displacement control, nano-positioning stage

Product Recommendations: ATA-2000 Series High-Voltage Amplifiers, ATA-P Series Power Amplifiers

Figure: Performance Parameters of the ATA-2000 Series High-Voltage Amplifiers

Figure: Performance Parameters of the ATA-P Series Power Amplifiers

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