First, Tianchi: also known as the bottom of the sea, that is, the compass. The Tianchi of the compass consists of thimble, magnetic needle, submerged wire, cylindrical outer box and glass cover, which are fixed in the center of the inner disk. There is a sharp thimble in the center of the bottom surface of the round box, and a concave hole in the center of the bottom surface of the magnetic needle, and the magnetic needle is placed on the thimble. The arrow of the compass points south at one end and north at the other.
There is a red line at the bottom (seabed) of Tianchi Lake, which is called the submarine line, and there are two red dots on both sides of the northern end. When in use, it is necessary to make the northern end of the magnetic needle coincide with the seabed line.
Modern compasses mark the crosshairs on the seabed. When in use, the northern end of the magnetic needle should point to the northern end of the reticle, and the magnetic needle should coincide with the north-south line of the seabed.
Second, the inner disk: it is the rotatable disk next to the outside of the compass. Many concentric circles are printed on the inner disk, and one circle is called a layer. Each floor is divided into different equal parts. Some floors have more squares, while others have fewer squares. The least floor is divided into eight squares, and the most floor has 384 squares. Different characters are printed on each grid. There are many kinds of compasses, some with many layers, some with few layers, the most with 52 layers, and the least with only 5 layers.
The contents of the compass are printed on different circles (layers) of the inner disk, which is the main component of the compass. All feng shui schools put the main content on the compass, making China's compass an encyclopedia of China's skills.
Third, the outer disk of the outer disk is square, which is the tray of the inner disk. There is a small hole at the midpoint of the outer side of the four sides, and the red line passes through the celestial center to become the ten channels for reading the contents of the inner disk. The ten directions of Tianxin are required to be perpendicular to each other, and the new compass you just bought must be calibrated before use.
Compass is a basic tool to measure the magnetic azimuth of the earth's surface, which is widely used in military, navigation, surveying and mapping, forestry, exploration, construction and other fields.
Fourthly, there are many materials for making geomantic compass, such as bakelite, plastic, density board and rosewood. Of course, the best and most practical material is diamond board, and the price is much lower than rosewood.
Five, there are many factions of geomantic compass, such as trinity, ternary, flying stars in the sky, golden lock, Yutong connecting yin and yang, and some compasses, such as Kong Xuanfa, Eight Houses Method, Gankun National Treasure, Longmen Eighth Bureau Water Method, Combination Three Methods, Sanyuan Method, Kong Xuanfa, Eight Houses Method, Gankun National Treasure and Longmen Eighth Bureau Water Method.
Compass is actually a tool to measure the square of the ground by using the principle of compass positioning. Compass is used in geomantic omen to cover dragons, remove sand, receive water and determine the sitting direction of buildings.
Geomantic compass is not only an important tool used by geomancers, but also used by Chinese communities in Hongkong, Taiwan Province Province, Southeast Asia and North America. The specific method is: put a compass in the drawer that you open most often, which can help the owner transport and prevent the villain from infringing. In addition, if there is a god of wealth or Guanyin at home, it is said that putting a compass in front of the god of wealth can greatly increase the power of praying. It is an excellent gift for leaders, contacting superiors and communicating with relatives and friends. Elegant, unconventional and unique, it fully shows the cultural taste of both the host and the guest.
There are many styles here.