Development status of sensor application in UAV

According to the current development trend of UAV, what role will sensor technology play? Here's a small edition for you to comb carefully.

Accelerometer

Accelerometer is used to determine position and flight attitude of UAV. Like the Nintendo Wii controller or the location of the iPhone screen, these small MEMS sensors play a key role in maintaining flight control. There are many ways to sense the motion attitude of the accelerometer, and one type of technology can sense the tiny motion of the micro integrated circuit.

Another accelerometer technology is thermal convection technology, without moving parts, but through a "hot air mass" displacement to perceive movement changes. This kind of sensor has high sensitivity and plays an important role in stabilizing vehicle-mounted cameras, film production and other applications.

Inertial Measurement Unit

Inertial measurement unit (IMU) combined with GPS is the key to maintain direction and flight path. With the development of UAV intelligence, direction and path control are important air traffic management rules. In essence, the multi-axis magnetic sensors used in the inertial measurement unit are miniature compasses with high accuracy, which transmit data to the central processing unit by sensing the direction, thus indicating the direction and speed.

Inclination sensor

Inclination sensors, integrated with gyroscopes and accelerometers, provide flight control systems with data to maintain horizontal flight. These sensors and gyroscopes, combined with accelerometers, can measure subtle motion changes, enabling inclination sensors to be applied to mobile programs, such as gyroscope compensation for automobiles or unmanned aerial vehicles.

Atmospheric Monitoring Sensor

The quality of air is one of the most concerned topics. Real-time monitoring of air quality, the degree of air pollution has become a hot spot, of course, air monitoring sensors play a vital role in it. At present, Weisheng Technology's atmospheric monitoring sensors have been widely used in urban atmospheric environment monitoring, factory area pollution monitoring and environmental assessment monitoring. It can monitor a variety of gases, including ozone, carbon monoxide, sulfur dioxide, nitrogen dioxide and so on.

current sensor

Power consumption and use on UAVs are very important, especially in the case of battery power supply. Current sensors can be used to monitor and optimize power consumption to ensure the safety of battery charging and motor fault detection system in UAV. Current sensors work by measuring current (bidirectional), ideally providing electrical isolation to reduce power loss and eliminate the chance of electric shock damage to user systems.

Magnetic sensor

In UAV, the electronic compass provides information on key inertial navigation and orientation systems. Compared with other sensors, the sensor based on anisotropic magnetoresistance (AMR) technology has obvious advantages of ground power consumption, high accuracy and short response time. It is very suitable for UAV applications.

Engine Inlet Flow Sensor

Flow sensor can be used to effectively monitor the micro air velocity of the electric unmanned aerial vehicle (UAV) gas engine. Many gas engine mass flow sensors adopt thermal technology, mainly using heating elements and at least one temperature sensor to quantify mass flow. The thermal gas mass flow sensor based on MEMS also utilizes the thermal principle in the micro-metering range and is suitable for the field with high weight requirement.