A comprehensive analysis of the principle and working principle of laser measuring instruments. Laser measuring instruments are high-precision measuring equipment widely used in industrial manufacturing, scientific research, and other fields.
It uses laser beams for measurement and has the advantages of high sensitivity and accuracy. It is widely used in fields such as size measurement, contour detection, and displacement measurement.
1、 The working principle of laser measuring instrument: 1. Emission of laser beam:
The laser measuring instrument emits a coherent beam of light through a laser emitter, which has high brightness and narrow beam width.
- Focusing and beam expansion of the beam:
The laser emitter adjusts the focal length and angle of the beam to accurately align it with the object being measured. - Beam irradiation:
After focusing and beam expansion, the beam is directed onto the object being measured, forming a bright line. - Reflection and scattering of light beams:
The beam of light on the object being measured will undergo reflection and scattering, with some of the light continuing to return along its original path and the other scattering in other directions. - Beam reception:
The laser measuring instrument receives the returned light beam through a receiver and converts the light intensity signal into an electrical signal. - Signal processing:
The receiver processes the received light intensity signal to determine various parameters of the measured object, such as size, shape, etc. - Data display and recording:
The processed data can be displayed on a screen and recorded and stored through devices such as computers.
2、 Application fields of laser measuring instruments - Dimensional measurement:
Laser measuring instruments can be used to measure size parameters such as length, width, and height of objects, and are widely used for size control and quality inspection in industrial manufacturing. - Shape measurement:
By processing the measured object with laser irradiation and reflection, the contour data of the object can be obtained, achieving accurate measurement of the object’s shape. - Displacement measurement:
By utilizing the high precision and sensitivity of laser measuring instruments, it is possible to measure the displacement of objects, such as displacement and vibration amplitude during mechanical motion. - Surface quality inspection:
Laser measuring instruments can be used to detect parameters such as surface flatness and flatness of objects, and are used for surface quality evaluation and quality inspection. - Automation control:
The combination of laser measuring instruments with other equipment can achieve an automated control system for size control and automatic adjustment on the production line.
3、 Advantages and disadvantages of laser measuring instruments - Advantages:
(1) High precision:
Laser measuring instruments have high-precision measurement capabilities and can meet the needs of precise measurement.
(2) Non contact measurement:
Laser measuring instruments do not require direct contact with the object being measured, avoiding damage and impact on the object being measured.
(3) High speed measurement:
Laser measuring instruments can complete a large number of measurements in a short period of time, improving production efficiency.
4) Wide adaptability:
Laser measuring instruments are suitable for measuring objects of various materials and shapes. - Disadvantages:
(1) High price:
The manufacturing cost and price of laser measuring instruments are relatively high.
(2) High environmental requirements:
Laser measuring instruments have high requirements for working environment temperature, lighting, etc.
(3) It is necessary to have a certain degree of reflectivity towards the object being tested:
Laser measuring instruments require a certain degree of reflectivity to measure the object being measured.
In summary, laser measuring instruments, as a high-precision measuring device, have a wide range of applications in industrial manufacturing, scientific research, and other fields.
Through the emission, irradiation, and reception of laser beams, laser measuring instruments can achieve accurate measurement of parameters such as size, shape, and displacement.
Despite its drawbacks of high price and high environmental requirements, its advantages have led to its widespread application and recognition in the field of modern measurement.
