Acoustoelectronics Tests

Lecture

Other peoples correct answered (level of difficulty) 86% questions

1. Acoustic electronics is:

The direction of functional microelectronics, based on the use of the piezoelectric effect;

Direction of functional microelectronics, engaged in the conversion of optical signals into electrical and electrical into optical;

The field of science and technology, studying and using the interaction of low-frequency acoustic waves with electric fields and electrons in solids;

The field of technology that studies the use of AB (ultrasound) in electronic systems for processing and transmitting information signals;

2. Properties of AB, determining their use in radio engineering and electronics:

Relatively low propagation velocity, simplicity and high excitation efficiency in piezoelectric materials;

High frequency, high propagation speed;

Simplicity and high excitation efficiency in piezoelectric materials, low frequency;

High propagation speed, fast attenuation;

3. IDT is:

Periodic structure of metal electrodes nested into one another on the surface of a piezoelectric;

AB distribution channel;

A device for amplifying AB;

Periodic structure of a piezoelectric and a semiconductor nested in one another;

4. The period of the structure of the IDT is equal to:

Half wavelength;

Two wavelengths;

Wavelength;

It is set arbitrarily;

5. Among the products on surfactants most of the market are:

Delay lines;

Sensors;

Bandpass filters;

Dispersion filters;

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