Aircraft manufacturing is inseparable from sensors, and the rare metal germanium is widely used

• Categories:Industry information
• Time of issue:2016-10-25 17:24

(Summary description)In order to obtain information from the outside world, people must resort to sensory organs. But in many real activities, it is far from enough to rely on people's own sense organs. Therefore, sensors came into being and are widely used in various industries. Aircraft manufacturing is an area where sensors are widely used, and rare metal germanium, as an important raw material for sensors, plays an indispensable role in it.   Fiber optic sensors monitor aircraft flight data   As a new type of sensor, the optical fiber sensor is made in the "hair" thickness of the optical fiber to achieve the measurement of various physical parameters such as strain, temperature, pressure, acceleration, etc. It can withstand high voltage and resist electromagnetic interference. It can also be buried inside the structural body and is mostly used for online monitoring, such as bridges, dams, oil depots, railways, etc.   The use of optical fiber sensors can not only provide safety warnings for abnormal conditions through data, and achieve long-term health judgment and life prediction through data accumulation, but also provide data support for the deformation of the aircraft wing, making the flight safer and more intelligent.   Inclination sensor measures aircraft flight angle   The best advantage of the tilt sensor is that it can directly output tilt data such as angle, which can be used to display the pitch and roll attitude of the passenger plane.   When the passenger plane is flying normally, the tilt sensor can measure the current pitch angle and roll angle of the passenger plane in real time, and transmit the tilt angle signal to the display system, so that the captain or co-pilot can understand the current flight attitude of the passenger plane in real time , Which greatly improves the safety of passenger aircraft flight.   Pressure sensor to ensure accurate atmospheric data   Pressure sensors are mainly used in the measurement of acceleration, pressure and force. For example, the pressure type accelerometer is a commonly used accelerometer. It has the advantages of simple structure, small size, light weight, and long service life. It is used in aircraft vibration and shock measurement. The pressure sensor can also be used to measure the combustion pressure and vacuum degree of the aircraft engine.     Altitude sensor measures the aircraft's flight altitude   The altimeter is an important sensor in the aircraft, which plays a very important role in the safe flight and autonomous control of the aircraft. Take the helicopter as an example. The vertical control of the helicopter is realized by controlling the lift of the main rotor. The altitude information and vertical speed information of the vertical control come from the altitude sensor, which records the air pressure on the ground and compares it with the air pressure value of the helicopter during flight. The higher the flight, the lower the pressure, and the current altitude of the helicopter can be calculated by the difference between the two.   By changing the height, the vertical speed can be calculated. But once the altitude sensor fails, the vertical control system of the unmanned helicopter will have problems, leading to serious accidents.   In addition to the above-mentioned examples, the application of sensors on aircraft include: temperature sensors measure the temperature of aircraft engines, temperature and humidity sensors measure the temperature and humidity in the aircraft room, oil level sensors measure the fuel level of the mailbox in the aircraft, acceleration sensors and speed sensors measurement The acceleration and speed of the aircraft flying, the smoke sensor for smoke alarm, the ultrasonic sensor to monitor the position of the aircraft, and the inertial sensor and so on.   Semiconductor material sensors are one of the most common sensors, which are sensors made of various physical, chemical and biological properties of semiconductor materials. There are many types of semiconductor sensors, which utilize nearly a hundred physical effects and material characteristics, and have multiple sensory functions similar to those of human eyes, ears, nose, tongue, and skin. The rare metal germanium is an important semiconductor material, which is sparsely distributed and has no concentrated germanium ore. Global germanium resources are scarce. China is the world's second largest germanium resource country after the United States, which affects the global germanium supply.   In view of the importance and scarcity of germanium, the state began to plan its strategic purchase and storage in 2011. The Pan-Asian Nonferrous Metals Exchange, established in the same year, also took germanium as one of the listed products, and used the power of private capital to purchase and store, and form a benign complement to the state. Nowadays, another new type of internet finance platform under Pan Asia Group-Pan Rong.com will also list germani