Inclination sensor application

1. What is an inclination sensor?

The tilt sensor can be used to measure the amount of change in tilt relative to the horizontal plane. The theoretical basis is Newton's second law. According to basic physical principles, in a system, the speed cannot be measured, but the acceleration can be measured. If the initial velocity is known, the linear velocity can be calculated by integration and the linear displacement can be calculated. So it is actually an acceleration sensor that uses inertial principles.

What are the types of tilt sensors?

Kind of rough points: uniaxial and biaxial.

From the working principle can be divided into "solid pendulum" type, "liquid pendulum" type, "gas pendulum" three inclination sensors.

For tilt sensors developed based on solid pendulums, liquid pendulums, and gas pendulum principles, they have their own strengths. In the gravitational field, the sensitive mass of the pendulum is the pendulum mass, the sensitive mass of the liquid pendulum is the electrolyte, and the sensitive mass of the pendulum is the gas.

Gas is the only moving body in the sealed chamber. Its mass is small, and the inertia force generated during large impact or high overload is also very small, so it has strong resistance to vibration or impact. However, the control of gas motion is relatively complicated, and there are many factors affecting its motion. Its accuracy cannot meet the requirements of military weapon systems.

The solid pendulum angle sensor has a clear pendulum length and a pendulum center, and its mechanism is basically the same as that of an acceleration sensor. In practice, there are many types of products such as electromagnetic pendulum type. Its product range, accuracy and anti-overload capability are relatively high, and its application in weapon systems is also extensive.

The liquid tilt angle sensor is in between, but the system is stable. In the high-precision system, the application is more extensive, and the domestic and foreign products are mostly such.

3, What are the uses of the tilt sensor?

Inclination sensors are used in a variety of measurement angle applications. For example, high-precision laser instrumentation, leveling of construction machinery equipment, distance measuring instruments, safety protection of aerial platforms, pitch angle measurement of directional satellite communication antennas, navigation attitude measurement of ships, shield pipe jacking applications, dam detection, geology Equipment tilt monitoring, artillery tube initial shot angle measurement, radar vehicle platform detection, satellite communication vehicle attitude detection, etc. The following is a brief introduction to several widely used.

Maritime geography

Landslides, avalanches - Two-axis tilt sensors, such as NA5200 series tilt sensors with liquid level sensors for landslides or avalanche monitoring, data transmission to the central control system through wireless sensor systems, real-time monitoring of mountain conditions, can effectively reduce Losses caused by landslides.

Construction project

High-rise building safety monitoring - more and more skyscrapers in the world, in order to monitor the safety performance of the building, you can use the SX41400 series of high-precision servo tilt sensors that can sense changes in small angles, can be used for building swing Web, vibration, tilt and other monitoring.

Reservoir Dam

Dam safety monitoring - The collapse of the dam has occurred many times in order to promptly issue warning signals and reduce property loss, through dip sensor monitoring, observation instruments and equipment, and to timely reflect the behavior of dams and bedrock and the environment Observation and data processing of various data on the role of the dam. Its purpose is to analyze and estimate the degree of safety of the dam so that timely measures can be taken to ensure safe operation of the dam.

Excavating machinery

Excavator - In order to realize the three-dimensional space positioning of the excavator, the platform rotation angle detection device and the platform inclination sensor are installed on the basis of the installation of joint angle sensors of the working device, and a laser receiver is installed on the stick to detect the ground. The height of the horizontal mechanism emitted by the laser emitter relative to the zero position of the receiver. Establish the kinematics model of the excavator, deducing the coordinate transformation matrix of the vehicle body relative to the earth, ie complete the positioning of the body of the three-dimensional space, and obtaining a simple and simple elevation formula for the elevation of the vehicle body, realizing the three-dimensional positioning of the excavator's excavation trajectory. The excavator's three-dimensional space trajectory lays the foundation for accurate control of the depth of the excavator.

Hyundai Motor

Automotive four-wheel positioning - With the development and application of electronic technology, the safety, comfort and intelligence of automobiles are getting higher and higher. The application of the vehicle's lateral tilt angle sensor is an effective method to prevent the automobile from tipping accidents while driving. It is an important measure to improve the safety of vehicles, especially off-road vehicles. More concentrated cars such as double-decker buses are more necessary. The essence of a car's tipping is: the tilting moment outward is greater than the inward stable moment during driving, and the tilting moment oil tilting force (outside lateral force) is determined when the center of gravity is constant.

robot

Robotics: In recent years, robotics technology has developed rapidly, and industrialized countries such as Europe and the United States have begun to systematically study various robots. With the advancement of science and technology and the passage of time, a large number of research results have been achieved. We know that a large number of sensors are used on the robot, and the tilt sensor can monitor the status of the robot in real time.

Railroad tracks

Track tester—The current track measurement method is of poor intelligence, low measurement accuracy and long operation time. It is urgent to design a portable intelligent track detector tilt angle sensor for general use for track inspection instrument for real-time detection. The inclination and height difference of the railway.

Tower tilt intelligent monitoring of transmission line towers – collapses of power transmission towers occur from time to time. Once a collapse occurs, a huge loss will result. The tilt angle sensor is used to monitor the tilt angle of the transmission line tower and can monitor the transmission line inclination angle in real time. High winds and other natural disasters cause the tilt angle to be too large. An early warning signal is issued in real time, and the loss is repaired by the staff.

Platform Control

The on-board horizontal platform-inclination sensor is applied on the horizontal platform of the ship. It is used for the satellite tracking antenna base of the ship to keep the antenna in the horizontal state. The platform is controlled in real time and the pitch and roll motion of the hull can be isolated. Level the platform.

Solar energy

Solar energy—Solar energy is a clean energy source. Its application is growing within a century. The use of solar power is a way to use solar energy. Therefore, in order to get sufficient use of solar energy, how to choose the azimuth and tilt angle of a solar cell is An important issue is the use of tilt sensors to adjust the angle to further increase the utilization of solar energy.