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University physics experiment instrument

EPSION

University physics experiment instrument

EPSION TECHNOLOGY EPSION TECHNOLOGY EPSION TECHNOLOGY EPSION TECHNOLOGY EPSION TECHNOLOGY EPSION TECHNOLOGY EPSION TECHNOLOGY EPSION TECHNOLOGY EPSION TECHNOLOGY EPSION TECHNOLOGY EPSION TECHNOLOGY EPSION TECHNOLOGY EPSION TECHNOLOGY EPSION TECHNOLOGY EPSION TECHNOLOGY EPSION TECHNOLOGY EPSION TECHNOLOGY EPSION TECHNOLOGY

Laser photoelectron

Modern comprehensive

Grating spectrometer

Interference diffraction polarization

Photoelectric element characteristics

Optical holography

Optical measurement

Optical fiber information communication

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Optical Series

YGS-2 Portable Michelson Demonstrator / Equal Inclination and Equal Thickness Interference Demonstrator

YGS-2 Portable Michelson Demonstrator / Equal Inclination and Equal Thickness Interference Demonstrator

The Michelson interferometer is a crucial instrument in physics—it not only confirmed Einstein’s postulate of the constancy of the speed of light, but also demonstrated that light can propagate and exhibit interference without requiring a medium—meaning that the so-called "ether," once thought to permeate space, does not exist. Yet, this groundbreaking discovery simultaneously gave rise to a lingering puzzle in physics (often referred to as "a single dark cloud"): if there’s no ether—no medium—how exactly does light travel? And more specifically, how does light produce interference in the first place? As Albert Einstein once remarked, "I’ve always regarded Michelson as an artist among scientists; his greatest joy seemed to stem from the sheer elegance of the experiment itself and the masterful precision of the methods he employed." To scientists, the Michelson interferometer is not just a scientific tool—it’s also a remarkable work of art. For both functionality and aesthetic appeal, the LGS-2 portable Michelson product comes encased in a sleek, transparent acrylic display box, offering dual protection: it shields the instrument from dust while transforming it into a captivating piece of art. After all, this device aims to balance practical utility with artistic value.

YGT-5 diode pumped laser principle experimental instrument

YGT-5 diode pumped laser principle experimental instrument

This experimental device takes 808nm semiconductor pumped Nd:yv04 laser as the research object. By setting up the whole experimental system and completing each part of the experiment, it can learn the debugging method of semiconductor pumped laser, observe the frequency doubling phenomenon, measure the threshold, phase matching and other experimental test methods. Deepen the understanding of the basic theory of laser principle and optical frequency doubling technology, and realize the combination of theory and practice. Compared with similar products, this experimental instrument has many functions, can set up many experimental contents, mechanical structure is stable and easy to debug, and the experimental operation is strong.

Experimental instrument for YGT-6 pulsed Q-switched Nd:YAG frequency-doubled laser

Experimental instrument for YGT-6 pulsed Q-switched Nd:YAG frequency-doubled laser

This experimental device grasps the basic principle, basic structure, main parameters, output characteristics and adjustment methods of the laser by setting and adjusting the laser by hands, and through observing the phenomena of Q-tuning, mode selection, frequency doubling, etc., learners have a more comprehensive understanding of the principle and technology of the laser. This equipment adopts various protection measures to effectively protect the safety of the operator. A variety of experiments can be set up, allow users to fully understand the principle of laser generation.

YGT-7 helium-neon laser experimental instrument

YGT-7 helium-neon laser experimental instrument

The experimental device by adjusting the He-Ne laser, changing the length of the resonant cavity, observing the change of laser mode, training hands-on ability, using the confocal spherical scanning interferometer, measuring the divergence angle of He-Ne laser, intuitive observation of the transverse mode and longitudinal mode spectral distribution.

YGT-8 semiconductor laser experimental instrument

YGT-8 semiconductor laser experimental instrument

The experimental device by measuring the semiconductor laser power, voltage and current, to understand the semiconductor laser in the continuous output characteristics. The fluorescence emitted when the injection current of the semiconductor laser is less than the threshold and the spectral line changes when the laser oscillation is greater than the threshold are observed by an optical multichannel analyzer.

YGT-9 helium-neon laser mode anaYYSis experimental instrument

YGT-9 helium-neon laser mode anaYYSis experimental instrument

This experimental device uses a He-Ne laser with a clear mode as the light source, and the optical path is easy to adjust, stable, and has high precision. In actual production and application, it is usually necessary to know the mode status of the laser first, such as precision measurement, holographic technology, etc., which require a base transverse mode output laser, while laser frequency stabilization and laser ranging require not only a base transverse mode but also a single longitudinal mode operation laser, therefore, mode analysis is a basic and important laser performance test.

YZH-5A single photon counting experimental instrument

YZH-5A single photon counting experimental instrument

The experimental system uses pulse height discrimination counting and digital counting technology, has a linear dynamic range; output digital signal, easy to count processing; the system is composed of single photon counter, semiconductor refrigeration system, optical system, optical power device and software.

YZH-6A Planck Constant Experiment Instrument

YZH-6A Planck Constant Experiment Instrument

The experimental system uses the deceleration field method to measure the cut-off voltage of the photocathode material under the irradiation of monochromatic light of different wavelengths, and verify the Einstein Equation, and then measure the Planck constant of the experimental process; and then understand the quantum and learn the photoelectric effect related techniques and methods.

YZH-6B photoelectric effect (Planck constant) experimental instrument

YZH-6B photoelectric effect (Planck constant) experimental instrument

The experiment is to use the principle of photoelectric effect to calculate the Planck quantity, first of all, to obtain the containment voltage of different light frequency, to make the containment voltage and light frequency of the relationship curve-a straight line, because the containment voltage meets Ube = hv/ew0/e, the slope of the straight line is h/e, the equation of the straight line can be obtained by computer simulation, then get its slash rate, so that Planck constant h = ke is enough.

YZH-15 Frank Hertz experimental instrument

YZH-15 Frank Hertz experimental instrument

The device adopts a liquid crystal touch screen structure, is convenient to operate, can be directly operated and read, and is intuitive and convenient. In order to study the energy tense inside the atom, the Frank-Hertz experiment uses low-speed electrons to bombard the atom, thus observing the mutual energy transfer process between them and proving the existence of quantized energy levels inside the atom.

YZH-4 geometrical optics experimental instrument

YZH-4 geometrical optics experimental instrument

The instrument and equipment can set up a variety of optical experiments, through the experimental accessories provided by the company, can be any combination of assembly experiments, through the process of building not only to cultivate hands-on ability, but also to inspire thinking, to achieve the purpose of combining innovation and practical ability.

YCG-2C Ultrasonic Grating Experimental Device

YCG-2C Ultrasonic Grating Experimental Device

The phenomenon where light waves are diffracted by ultrasonic waves while propagating in a liquid medium is called ultrasonic light diffraction (also known as the acousto-optic effect). This phenomenon results from the interaction between light waves and sound waves in the medium. Ultrasonic waves modulate the density of the liquid, turning the originally uniform and transparent liquid into an "ultrasonic optical grating" with periodically varying refractive index. When a light beam passes through, diffraction occurs, allowing accurate measurement of the speed of sound waves in the liquid. Moreover, with the development of laser and ultrasonic technologies, the acousto-optic effect has been widely applied. By completing the ultrasonic optical grating experiment, one can understand the experimental principle of the acousto-optic effect, use it to measure the speed of sound waves in the liquid, and also help students learn more about the applications of various devices.

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Epsion, one of the major manufacturers of teaching instruments in China;

Epsion, the inheritor of physics teaching experiment instrument and spectrum analysis instrument in the new era.

laser photoelectron
modern comprehensive
grating spectrometer
interference diffraction polarization
photoelectric element characteristics
optical holography

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