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Important progress has been made in basic and applied research in the field of optics in China.

Important progress has been made in basic and applied research in the field of optics in China.

In our country, the scientific research teams in the field of optics have made important progress in the basic and applied research of optics with their perseverance and unremitting exploration. This achievement has undoubtedly added a lot of color to China's position on the global science and technology stage.

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2024

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05

Optical azimuth measuring distance target

Optical azimuth measuring distance target

Optical azimuth instrument is an instrument that uses optical principles to measure the azimuth and distance of a target. It is mainly composed of telescope, angle meter, distance meter and other parts. The telescope is used to capture the image of the target object, the goniometer is used to measure the angle of the image in the field of view, and the distance meter calculates the distance between the target object and the observer by means of triangulation.

18

2024

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07

The difference between high pressure sodium lamp and low pressure sodium lamp

The difference between high pressure sodium lamp and low pressure sodium lamp

High-pressure sodium lamp is to charge sodium and high-pressure mercury vapor in a spherical gas discharge bulb and heat it to emit yellow (spectral lines are mainly in the yellow and green regions, most of which are concentrated in the yellow region). The low-pressure sodium lamp is heated by charging sodium and neon in a long tubular discharge bulb to make it emit orange-yellow light (the main spectral line is in the orange light region).

18

2024

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07

What is the difference between DC load and AC load

What is the difference between DC load and AC load

DC loads and AC loads are two distinct types of loads that differ significantly in several ways. First of all, from the perspective of power supply type, DC load mainly uses DC power supply, while AC load uses AC power supply. This difference in power supply type directly affects the working principle and performance of the load.

18

2024

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07

General principles for laboratory verification of analytical systems

General principles for laboratory verification of analytical systems

The established analytical system shall be verified using the prescribed analytical system verification tools. If the verification shows that the system is running beyond the control range, the test results are not credible, and the causes need to be investigated, and the analysis system needs to be re-tested after corrective measures are implemented. Laboratory managers also need to develop procedures for feedback on the verification of analytical systems, corrective actions, and incentives for employees. Due to the influence of errors, it may be impossible to identify the error or short-term interference in the test of individual samples.

18

2024

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07

Dust protection and room location requirements for optical instruments

Dust protection and room location requirements for optical instruments

The room used for cleaning optical parts should be clean, bright, dry, warm, and the indoor temperature does not change dramatically. The above conditions can cause attachments on the surface of optical parts and rust on the surface of metal parts. The walls and ceiling of the room should be painted white, and the floor should be covered with linoleum. The workbench is paved with glass. The floor shall be wiped with a damp cloth no less than twice during the working hours of a shift.

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2024

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07

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