In order to obtain information from the outside world, it is necessary to use sensory organs. But in many practical activities, people's own sense organs are not enough. Therefore, sensors have emerged, and is widely used in various industries. Aircraft manufacturing is a very wide range of sensor applications, and rare metal germanium as a sensor important raw materials, which plays an indispensable role.
Optical fiber sensor to monitor aircraft flight data
Fiber sensor, as a new type of sensor, the sensor fabricated inside the thickness of hair fiber to achieve strain, temperature, pressure, acceleration and other physical parameters measurement, it can tolerance to high voltage, anti electromagnetic interference, can also be embedded inside the machine body, used for on-line monitoring, such as bridges, dams, oil depot, railway.
Using optical fiber sensor can through the data and the abnormal condition of security early warning, by the accumulation of data to achieve long-term evaluation of health and life prediction, also can provide the data support for the wing deformation, make flying safer, more intelligent.
Angle sensor measuring plane flight angle
The best advantage is that the angle sensor can be directly output angle data, which can be used to display the attitude of the aircraft's pitch angle and roll angle.
In normal flight of the aircraft, the tilt sensor can real time the aircraft the flight pitch angle and roll roll angle measuring out, and the angle signal is transmitted to a display system, the pilot or copilot can real-time understanding of the aircraft the flight attitude, and greatly improve the safety of aircraft flight.
Pressure sensor to ensure accurate atmospheric data
Pressure sensor is mainly used in the measurement of acceleration, pressure and force. Such as pressure type acceleration sensor is a kind of commonly used accelerometer. It has the advantages of simple structure, small size, light weight, long service life, etc.. The pressure sensor can also be used to measure the internal combustion pressure of the aircraft engine and the measurement of the vacuum degree.
Altitude sensor measuring aircraft flying height
An altimeter is important aircraft aircraft sensor, for aircraft flight safety and autonomous control has very important role. Here take a helicopter as an example. Helicopter vertical control is realized through the control of the main rotor lift of, vertical to control the height and vertical velocity information from in height sensor, recorded under ground pressure, and helicopter flight pressure value are compared, due to fly higher, the lower the pressure, the difference between the two will be able to calculated current helicopter height.
By the height of the change, the vertical velocity can be calculated. But once the height of the sensor failure, the vertical control system of unmanned helicopter will appear problems, leading to serious accidents.
In addition to the above cited examples, on the plane of the sensor applications are: temperature sensor measurement of aircraft engine temperature, the temperature and humidity of the indoor temperature and humidity sensors to measure aircraft, the oil level in the oil level sensor to measure the aircraft in the mailbox, acceleration sensor and speed sensor to measure the Flight Acceleration and velocity, smoke sensor smoke alarm, ultrasonic sensors to monitor the aircraft position and inertial sensors, and so on.
Semiconductor material sensor is one of the most common sensors, which is made of various physical, chemical and biological characteristics of semiconductor materials. A wide variety of semiconductor sensors, which use nearly one hundred kinds of physical effects and material characteristics, with similar to the human eye, ear, nose, tongue, skin and other sensory functions. Rare metal germanium is an important semiconductor material, and the distribution of the rare metal germanium is not concentrated and germanium. Global germanium resource scarcity, China is second only to the United States, the world's second largest germanium resources, affecting the world's supply of germanium.
In view of the importance of germanium and scarcity, countries began to plan the strategic reserve in 2011. The same year the establishment of the Pan Asian non-ferrous metals exchange will also germanium as one of the varieties listed, purchasing and storage with the aid of the strength of private capital, and the State purchasing and storage form a benign and complementary. Today, Pan Asia Group's new Internet banking platform -- pan financial network will also be listed on the germanium can be predicted that the Internet + by means of trend, coupled with itself in the field of the manufacture of aircraft and other widely used, the future rare metal germanium material will usher in a new investment and consumption boom. (author: Li Zijian)