The Core Sensing Component Behind a Drone’s “Aerial Balance”
Drones are able to hover, turn, and fly in windy conditions thanks to a precision flight control system. Within the sensing layer of this system, the accelerometer plays an indispensable role.
Accelerometers are core components that enable drones to fly stably. By monitoring changes in acceleration along three axes in real time, they provide the flight control system with critical data for attitude adjustment, vibration suppression, and altitude estimation. Working in tandem with sensors such as gyroscopes and barometers, they collectively form the drone’s “sensory system.” Simply put, an accelerometer detects the direction of gravity and tells the drone “whether it is level or tilted, and by how much”—it is precisely this capability that allows drones to always know “where they are and what their attitude is” even in complex environments.
As drone applications continue to expand—including consumer aerial photography, industrial inspections, agricultural crop protection, and racing—market demand for high-performance, low-power, and highly reliable accelerometer sensor chips continues to rise. As a globally renowned authorized distributor of electronic components, Shenzhen Mingjiada Electronics Co., Ltd. has long supplied drone industry clients with accelerometers and IMU (inertial measurement unit) chips from leading international brands, offering one-stop procurement services.
Core Technical Principles of Accelerometers in Drones
The operating principle of an accelerometer is based on Newton’s Second Law (F=ma). Inside an accelerometer, there is typically a tiny mass connected to a fixed reference point via an elastic element. When the drone is subjected to acceleration, the mass displaces relative to the fixed reference point. This displacement is converted into an electrical signal via capacitive, piezoelectric, or piezoresistive methods, and then converted by an ADC to output digital acceleration data.
Currently, mainstream drone accelerometers utilize MEMS (Micro-Electro-Mechanical Systems) technology, which offers advantages such as small size, low power consumption, controllable costs, and mass-production capability. MEMS accelerometers detect minute displacements through microstructures embedded with micro-integrated circuits—displacements in these microstructures alter the current or capacitance flowing through the structure, thereby indicating changes in position relative to gravity.
In a drone’s flight control system, accelerometers primarily perform the following core functions:
Attitude and Tilt Detection: By measuring the components of gravitational acceleration along the X, Y, and Z axes, they calculate the drone’s pitch and roll angles in real time;
Motion State Detection: Detects the UAV’s full range of motion states, including translation, acceleration, deceleration, dive, and climb;
Vibration Suppression and Filtering: Works in conjunction with algorithms to filter out noise interference caused by motor vibrations and airflow disturbances;
Coordination with Gyroscopes: The accelerometer provides an attitude reference, while the gyroscope provides angular velocity information; the fusion of these two sources enables precise attitude estimation.
Which brands of UAV accelerometer chips does Mingjiada supply?
Shenzhen Mingjiada Electronics Co., Ltd. was established in 1996 and has branches in Shenzhen, Hong Kong, Japan, Russia, Taiwan, and other locations. The company maintains an inventory of over 2 million SKUs, covering more than 500 internationally renowned semiconductor brands. In the field of drone accelerometers and motion sensors, Mingjiada primarily supplies the following leading international brands:
1. ST (STMicroelectronics) — The top choice for lightweight drones
ST is a world-leading manufacturer of MEMS sensors. Its accelerometers are renowned for their high integration, low power consumption, and miniaturization, and are widely used in smartphones, wearable devices, and drones.
The main drone-compatible models of ST accelerometers supplied by Mingjiada include:
LIS2DHTR: Three-axis MEMS accelerometer, adjustable range of ±2g/±4g/±8g/±16g, dual I2C/SPI interfaces, maximum output rate of 5.3 kHz Attitude estimation and flight stabilization control for consumer-grade and industrial-grade multirotor drones
LIS2DH: Ultra-low power consumption (2 μA), 16-bit resolution, ±2g to ±16g measurement range. Used for attitude calculation in drone flight control systems, FPV racing drones, and stabilization of aerial photography gimbals
LIS3DH: Digital-output 3-axis accelerometer with built-in temperature sensor and high shock resistance. Suitable for industrial-grade drones and applications in harsh environments
LIS25BA: Three-axis high-bandwidth accelerometer Drone flight control and vibration monitoring
LSM6DSR: Six-axis IMU (3-axis accelerometer + 3-axis gyroscope), ±16g measurement range, ±4000 dps wide-range gyroscope Precise attitude control for high-speed drones, pitch/roll/yaw angle error <0.5°
Among these, the LIS2DHTR supports flexible configuration with four range settings: small aerial photography drones can select a lower range to ensure detection accuracy, while racing drones and industrial inspection drones can switch to the ±16g high range during high-speed maneuvering to prevent data distortion caused by acceleration exceeding the limit. Its maximum data output rate of 5.3 kHz captures instantaneous acceleration changes at the millisecond level, eliminating data lag during high-speed maneuvers.
2. ADI (Analog Devices) — The Benchmark for High-Performance Industrial-Grade Solutions
ADI is a global leader in high-performance analog semiconductors. Its accelerometers are renowned for their high precision, high resolution, and ultra-low power consumption, making them the top choice for industrial-grade drones and demanding applications.
The main drone-compatible models of ADI accelerometers supplied by Mingjiada include:
ADXL313: Three-axis digital MEMS accelerometer, 13-bit resolution, ±0.5g/±1g/±2g/±4g measurement range, operating power consumption of only 30 μA, standby power consumption of 0.1 μA Small and medium-sized consumer drones, industrial inspection drones, racing drones
ADXL345: Three-axis digital accelerometer, ±16g measurement range, low power consumption Drones, wearable devices
ADXL375: High-impact accelerometer, ±200g measurement range Industrial vibration monitoring and collision detection
The ADXL313 features 13-bit high-precision fixed resolution, with a sensitivity of up to 1024 LSB/g at the ±4g measurement range and a noise density of only 150 μg/√Hz on the X and Y axes. Its power consumption is particularly impressive—as low as 30 μA in measurement mode and as low as 0.1 μA in standby/sleep mode, representing a reduction of over 40% compared to accelerometers of the same accuracy class, making it perfectly suited for the long battery life requirements of drones.
3. Bosch—The Best Value Choice for Consumer and Racing Drones
Bosch possesses deep technical expertise in the field of MEMS sensors, and its accelerometers and IMU products are renowned for their high performance, compact packaging, and low power consumption.
The main drone-compatible models of Bosch motion sensors supplied by Mingjiada include:
BMI260: Ultra-low-power, 16-bit triaxial accelerometer + gyroscope, compact 2.5×3.0mm package Drone navigation, SLAM, indoor navigation
BMI160: Classic low-power 6-axis IMU, supports I2C/SPI interfaces Drone motion sensing
BMI260: As an upgraded version of the BMI160, it maintains pin compatibility, allowing customers to easily replace and upgrade existing components while significantly improving system accuracy.
4. NXP (NXP Semiconductors) — Accelerometer Solutions for All Applications
NXP is a world-leading semiconductor company whose accelerometers are renowned for their high precision, low power consumption, stability, and versatility.
Mingjiada has long supplied the full range of NXP accelerometers, covering diverse applications such as industrial automation (vibration monitoring, tilt detection), consumer electronics (motion sensing, attitude recognition), and automotive electronics (electronic stability control, collision detection). In the drone sector, NXP accelerometers can be used for flight control attitude sensing and navigation assistance.
5. Other Brands
In addition, Mingjiada distributes Melexis products such as accelerometers, solid-state gyroscopes, pressure sensors, and magnetic sensors, as well as ROHM sensors/MEMS and accelerometer ICs.
How to Choose the Right Accelerometer for Drones?
When selecting components for a drone flight control system, it is recommended to comprehensively evaluate accelerometer chips based on the following criteria:
Measurement Range: For aerial photography and inspection drones, a range of ±2g to ±4g is sufficient to ensure accuracy; racing and stunt drones require a range of ±16g or higher to handle intense maneuvers;
Power Consumption: For long-endurance drones, prioritize models with operating currents in the μA range and a deep sleep mode;
Interface Compatibility: I2C interfaces are suitable for lightweight designs, while SPI interfaces are suitable for high-speed data transmission;
Noise and Resolution: High resolution and low noise density are key to ensuring attitude accuracy;
Package Size: For miniaturized drones, select sensors with compact packages.
Mingjiada Electronics: One-Stop Supply Platform for UAV Sensors
Leveraging a global supply chain network and nearly three decades of experience in the semiconductor industry, Shenzhen Mingjiada Electronics Co., Ltd. provides one-stop procurement services for high-performance, highly reliable sensors to customers in the industrial, automotive, consumer electronics, and IoT sectors. The company has obtained ISO 9001:2014 Quality Management System and ISO 14001:2014 Environmental Management System certifications, ensuring that all products are genuine, reliable, and deliver stable performance.
Mingjiada not only offers immediate availability of accelerometers from brands such as ST, ADI, Bosch, and NXP, but also provides chip recycling services, focusing on the full range of MEMS sensors from ADI (ADXL series), Bosch (BMI series), and ST (LIS series). Whether for component selection and procurement for new projects or for managing excess inventory, Mingjiada delivers professional and efficient one-stop services.
For more information on drone accelerometer products or sales quotes, please visit Mingjiada’s official website at www.integrated-ic.com.
Contact Person: Mr. Sales Manager
Tel: 86-13410018555
Fax: 86-0755-83957753