Angle sensors are used to detect angles. When connected to RCX, the angle sensor will be counted once every axis turns 1/16 circle. When rotating in one direction, the count increases, and when the direction of rotation changes, the count decreases. The count is related to the initial position of the angle sensor. When the angle sensor is initialized, its count is set to zero, and you can reset it programmatically if you want.

Azimuth, also known as horizon longitude, is one of the ways to measure the angular difference between objects in a plane. The azimuth angle measured by the sensor is a horizontal angle between the plane of the noon circle and the plane of the horizontal meridian circle passing through the celestial body. It is measured clockwise from the plane of the noon circle as the starting plane. The measurement of azimuth can also be carried out on the horizon, starting from the South Point and measuring clockwise from the South point.

Along with the development of military technology, azimuth sensors have the characteristics of high-tech operations. The informationization of sensor test system is the main way to realize the modernization of Chinese military equipment. It is urgent to upgrade the performance of old equipment with high and new technology. This is not only an important link to enhance the existing weapons and equipment, but also an important factor to maximize the overall operational effectiveness of existing equipment. There are many old types of turret azimuth system in our country, most of them are not equipped with automatic detection and acquisition equipment. The calculation of various parameters, data processing and reporting of turret azimuth system are mostly carried out manually, which makes it difficult to acquire quickly and accurately in complex environment. In order to meet the requirements of modern turret azimuth system, it is necessary to have a complete test system with automatic acquisition and analysis capability.

It is well known that artillery is a barrel-fired weapon with a caliber equal to or greater than 20 mm, which uses energy such as powder gas pressure to eject projectiles. Artillery is usually made up of two parts: the gun barrel and the artillery frame. As early as 1332, China's Yuan Dynasty was equipped with the earliest metal cannon gun in the Army: Bronze gun. Artillery is usually made up of two parts: the gun barrel and the artillery frame. The requirement of artillery bed inclination is very high when firing. The digital quadrant instrument designed by angle sensor can obviously increase the speed of calibrating artillery bed and reduce the difficulty of operation.

The angle sensor is the most accurate aid for the accuracy and stability of the projectile launch. Nowadays, the artillery rack is composed of recoil device, direction machine, high and low machine, aiming device, large frame and moving body, angle sensor and so on. The recoil device is used to ensure the reset of artillery shell after firing, the direction machine and the high and low machine are used to ensure the reset of artillery shell after firing, and the direction machine and the high and low machine are used to control the barrel to change direction. And high and low, the aiming device consists of angle sensors, sights and sights, used to set the gun firing data, the implementation of aiming shooting, shelves and moving bodies used to support the gun when shooting, when marching as artillery vehicles.