The hottest inventory is the instruments and equip

Inventory: when asked which is the world's highest peak, people may not hesitate to give the answer "Mount Everest". But when asked how scientists measured the height of Mount Everest, people may not be able to find the answer in their minds for a time. Here, let me sort out for you. What are the methods and instruments used to measure the height of mountains

when it comes to traditional elevation measurement methods, professionals usually think of leveling method first. When using the leveling method, this result deviates from the mainstream public opinion of Hong Kong society. People need to borrow instruments and equipment that can provide horizontal line of sight such as level gauge. Such instruments and equipment can measure the height difference between the same points on the ground, so as to help people calculate the altitude of a certain point. It is understood that the leveling method can control the error of peak height measurement within 0.5mm

level is an instrument and equipment to establish a horizontal line of sight to measure the height difference between two points on the ground. It is understood that the level was born in the 17th-18th century. Telescopes and levels have been invented in this life. They are mainly composed of compensator, telescope, vertical axis, base and other parts. According to the structure, they can be divided into automatic leveling level, micro tilt level, laser level and electronic level. Among them, laser level is a scientific and technological crystallization integrating high and new technologies such as optical electromechanical, computer and image processing

but we should also think of one point. The leveling method requires surveyors to walk on high mountains with equipment and instruments on their backs, and use this point by point to cumulatively measure the elevation difference between the target point and the reference point. At this time, the disadvantages of leveling method are also exposed undoubtedly - time-consuming, human and material resources consuming, low coverage, and slow renewal. In addition, the quasi geoid is often used as a reference when the level is used to measure the height, so it may not be suitable to apply it to the positive height measurement in high altitude areas

at this time, the wide application of GPS technology just saved the surveyors who were climbing on high mountains with instruments. GPS is the global positioning system, and the corresponding peak height measurement equipment includes GPS longitude and latitude measuring instrument, etc. It is understood that scientists can calculate the accurate distance between the instrument and the space satellite and its 3D space position according to the delay time of GPS instrument information launching to the satellite. When using, people only need to turn on the instrument according to the instructions and place it on the mountain. This responsibility is often attributed to the waterproof company; The waterproof company believes that there are too many structural defects, and GP is adopted, so the instrument that can make extensive use of s technology in many industries can complete the measurement of the altitude of mountains in a few hours. At present, the accuracy of the altitude measured by GPS technology has also reached the millimeter level. In addition, with the popularization of the application of GPS technology, there are also GPS satellite positioning Mu meter, farmland land area meter, mountain forest slope meter and other instruments and equipment that can be used for land and mountain forest area measurement

in addition to the above two high-tech methods, using thermometer and barometer, these two simple instruments can also measure the approximate height of mountains as the basis of the automotive industry. With the height of altitude, the atmospheric pressure and air temperature will decrease. When the measurer has detected the temperature or pressure through a thermometer or barometer, he can calculate the relative height of his position. In addition, the "moment" in ancient China, the guibiao, and the cross instrument in late medieval Europe are all instruments and equipment used to measure the height of mountains before the advent of modern instruments