In the aerospace industry, rotary encoders and inductive sensors applications combine demands for high-precision feedback along with the ability to operate in extreme environmental conditions. Whether installed on airborne systems, ground support vehicles, testing fixtures, maintenance equipment, flight simulators or automated manufacturing machinery, rotary incremental encoders and photoelectric sensors are widely applied in aerospace. Encoders used in aerospace applications generally require housings and environmental ratings consistent with the presence of shock, vibration, and extreme temperatures.
Automatic doors and gates, for example on buses, trains, elevators, garages, etc. need to have reliable sensing technology so that they open and close at correct times. The entire area in front of the door needs to be under the sensing area for the automated doors to work properly. Light Curtain Sensors coupled with infrared scanners can detect approaching people or vehicles.
The aerospace industry typically uses encoders and sensors to provide feedback for the following functions:
Motor Feedback - Actuators, ground support vehicles, antenna positioning systems
Conveying - Baggage handling systems
Registration Mark Timing - Antenna positioning, airborne guidance systems
Backstop Gauging - Automated assembly systems
X-Y Positioning - Automated assembly systems
1. Marble introduction
Marble originally refers to the white limestone with black patterns produced in Dali, Yunnan Province. The profile can form a natural ink landscape painting. In ancient times, marble with formed patterns was often selected to make screen or mosaic painting. Later, the name marble gradually developed into limestone with various colors and patterns and used as building decoration materials, White marble is generally called white marble. Marble is mainly used for processing into various shapes and plates for walls, floors, platforms and columns of buildings. It is also often used as materials for memorial buildings such as steles, towers and statues.
2. Marble material characteristics
Marble worktable is a kind of granite plate. It is made of "Jinan green" stone by mechanical processing and manual fine grinding. Black luster, precise structure, uniform texture, good stability, high strength, high hardness, can maintain high precision under heavy load and general temperature, and has the advantages of no rust, acid and alkali resistance, wear resistance, no magnetization, constant type and so on. Granite plate is suitable for measuring tools in machinery factories. After hundreds of millions of years of natural aging, the shape is extremely stable, and there is no need to worry about deformation due to conventional temperature difference. After strict physical test and selection, the granite has fine crystal, hard texture, compressive strength of 2290-3750kg / cm2 and hardness of Mohs hardness grade 6-7.
3. Benefits of marble materials
1. No deformation: after long-term natural aging, the rock has uniform microstructure, minimal linear expansion coefficient and complete disappearance of internal stress.
2. High hardness: good rigidity, high hardness, strong wear resistance and small temperature deformation.
3. Long service life: no need to apply oil, not easy to stick to dust, convenient and simple maintenance.
4. No scratch: it is not prevented by constant temperature conditions and can maintain its original physical properties at room temperature.
5. Non magnetization: it can move smoothly without stagnation, and is not affected by humidity. The plane scale is good.
I believe that after reading the above article, you have a further understanding of what is marble and the benefits of marble materials. I hope our introduction can be helpful to you.
