Principle

Microwave refers to electromagnetic waves with a frequency of 300MHz-3000GHz. Although the generation, transmission, and reception of microwaves are quite different from the long-wavelength broadcasting and radio waves of television, they are also quite different from the light electromagnetic waves with extremely short wavelengths. However, the wave characteristics of electromagnetic waves such as diffraction, interference and polarization can also be clearly observed in microwave experiments, which is very helpful for us to understand the properties of microwave electromagnetic waves. The wavelength of microwaves is about 1000 times larger than that of light waves. Therefore, it is easier and more intuitive to use microwaves to conduct wave experiments than optical methods.

Overview

This experimental device uses the generation, transmission and reception of microwaves, cooperatewith the spectrometer structure and some accessories to study the microwave fluctuation characteristics. The microwave emitted from the signal source, after passing through the single/double slits, polarizing plate and other structures on the center platform, appears diffraction, interference, and polarization. The receiver receives the signal records it to verify the microwave fluctuation characteristics.

Features

• Abundant accessories can basically cover the electromagnetic wave fluctuation characteristic experiment.

• It is easy to assemble and disassemble by adopting the separate combination mode. All components are novel, exquisite and   beautiful in design. It is convenient for students to design experimental programs and assemble them by themselves.

  

• The platform is designed with a dedicated angle measurement synchronization device, which is used in conjunction with the wireless rotation sensor when upgrading to a digital experiment, and the sensor can be loaded and unloaded simply and quickly.

  

• The signal output terminal is designed with a dedicated 8-pin analog voltage data acquisition port for   use with wireless   voltage   sensors when upgrading to digital experiments.

• The mature solution supports the expansion of digital experiments. No computer is required, and wireless automatic data collection and processing can be realized by using the mobile APP software provided, and real-time wireless digital collection and real-time   analysis can be realized.

  

• Scalable to load wireless voltage sensors.

• Scalable to load wireless rotation sensor.

• Using cm-level microwaves, the experimental content has been upgraded from microstructure to large-scale, allowing simple   observation and analysis of experiments.

  

• The instrument has low microwave power and low radiation to students, ensuring safety.

Experiment Contents

Experiment 1: Learn the reflection phenomenon of microwave and deepen the understanding of wave theory.

Experiment 2: Learn the single-slit diffraction phenomenon of microwaves.

Experiment 3: Understand the interference characteristics of microwaves and calculate microwave wavelengths.

Experiment 4: Understand the standing wave phenomenon of microwaves and use standing waves to measure microwave wavelengths.

Experiment 5: Understand the refraction phenomenon of microwaves and calculate the refractive index of the specified material.

Experiment 6: Observe and understand the polarization phenomenon of microwaves polarized by the horn.

Experiment 7: Understand the principle of the Lloyd mirror and measure the microwave wavelength with the Lloyd mirror.

Experiment 8: Understand the principle of Fabry-Perot interference and calculate the microwave wavelengths.

Experiment 9: Understand the working principle of Michelson interference and calculate the microwave wavelengths.

Experiment 10: Understand the polarization characteristics of microwaves and find the Brewster angle.

Experiment 11: Understand the principle of the Bragg diffraction experiment, verify the Bragg formula by microwave diffraction on a simulated crystal and measure the distance between the crystal planes of the cubic crystal array.

Experiment 12: Understand the propagation characteristics of microwaves in fibers.

Typical Datas

Relation between receiving voltage and position

Under different angles of the polarizing plate, the measured received signal at each angle

Relationship between double slit interference voltage and rotation angle

Relationship between voltage and rotation angle in Bragg diffraction

Note: the datas are tested with PASCO sensor. If you need sensors, you can consult your local PASCO Reseller for purchase.