The development of sensor technology is critical to the development of the Internet of Things, and the diversity of IoT applications is also increasingly demanding sensors. This article will take stock of popular sensors for drones, VRs, and smart watches.

Drone: Sensor technology is widely used in new drone technology and solutions

Popular applications of the Internet of Things: What sensors are included in the drone/VR/smart watch?

Accelerometer

Accelerometers are used to determine the position and flight attitude of the drone. Like Nintendo Wii controllers or iPhone screen locations, these small MEMS sensors play a key role in maintaining flight control. MEMS accelerometers have a variety of ways to sense motion poses, and one type of technology is capable of sensing the tiny motions of microchips.

Another accelerometer technology is the thermal convection technique, which has no moving parts, but a motion change that is perceived by the displacement of a "hot air mass". These sensors are highly sensitive and play a vital role in stabilizing automotive cameras, film production and other applications.

Inertial measurement unit

Inertial measurement unit combined with GPS is the key to maintaining direction and flight path. With the development of intelligent drones, direction and path control are important air traffic management rules. The multi-axis magnetic sensor used in the inertial measurement unit is essentially a small, highly accurate compass that transmits data to the central processor through the sensing direction to indicate direction and speed.

Tilt sensor

The tilt sensor integrates a gyroscope and accelerometer to provide data for the flight control system to maintain horizontal flight. These sensors and gyroscopes, combined with accelerometers, are capable of measuring subtle motion changes, allowing the tilt sensor to be applied to mobile programs such as gyroscope compensation for cars or drones.

Atmospheric monitoring sensor

The quality of air is a topic that people are most concerned about. Real-time monitoring of air quality, air pollution has become a hot spot, of course, atmospheric monitoring sensors play a vital role. At present, Haosheng Technology's atmospheric monitoring sensors have been widely used in urban atmospheric environment monitoring, unorganized emission of polluted gas in factory sites, and environmental assessment monitoring. Can monitor a variety of gases, including: ozone, carbon monoxide, sulfur dioxide, nitrogen dioxide and so on.

current sensor

Power consumption and use on drones is important, especially in the case of battery power. Current sensors can be used to monitor and optimize power consumption to ensure the safety of the internal battery charging and motor fault detection systems of the drone. Current sensors operate by measuring current (bidirectional), ideally providing electrical isolation to reduce power loss and eliminate the chance of electric shock damaging the user's system.

Magnetic sensor

In drones, the electronic compass provides information on critical inertial navigation and directional positioning systems. Sensors based on anisotropic magnetoresistance (AMR) technology have obvious power consumption advantages compared with other sensors, and have high precision and short response time, which are very suitable for UAV applications.

Engine intake flow sensor

Flow sensors can be used to effectively monitor the small air flow rate of an electric drone gas engine. Many gas engine mass flow sensors use thermal technology that uses heated components and at least one temperature sensor to quantify mass flow. MEMS thermal gas mass flow sensors also utilize thermal principles in the micrometer range and are suitable for use in areas where weight is critical.

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