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Installation angle estimation algorithm for smartphone GNSS/MEMS IMU vehicle-mounted integrated navigation

Most smartphones have built-in micromechanical inertial measurement units, global navigation satellite systems, magnetometers and other sensors and high-performance processors. They have…

Digital Output-Full Attitude Three-Dimensional Electronic Compass

Analysis of digital compass technology based on magnetoresistive sensor

Digital compass (also known as electronic compass) is a device that uses geomagnetic measurement principles to determine direction. The three-axis digital…

standard precision GNSS small size module

Understanding RTK GPS: Precision Positioning Technology

In today's digitally driven world, accurate positioning is fundamental to various applications, from navigation and surveying to precision agriculture and autonomous…

High Temperature Wireline Directional Sensor

Fluxgate Directional Assembly: Structure and Design of Fluxgate Acquisition System

Fluxgate directional assembly contains fluxgate sensors that measure well angle, tool face angle and azimuth angle. It is mainly used in MWD…

Why do MEMS North Finders Need Full Temperature Compensation?

North finders are widely used in military and civilian fields, and are not affected by terrain, climate, external magnetic fields, measurement…

Analysis of Processing and Assembly Techniques for Q-Flex Accelerometer

The precision of Q-Flex accelerometer is closely related to the processing and assembly accuracy during production. Accelerometers are instruments with complex production…

FOG Inertial Measurement Unit Data Acquisition System

According to the application background of a project, a strapdown inertial measurement unit (FOG Inertial Measurement Unit) is designed and implemented…

The Working Principle and Method of North Finding of Gyro Theodolite

Definition Gyro theodolite is a directional positioning instrument, which is composed of two parts: gyroscope and theodolite. This instrument is a…

High Precision Navigation MEMS Gyroscope

MEMS Gyroscope: Error Compensation By Allan Variance Method

MEMS gyroscope is small in size, light in weight, has the advantages of intelligence, multi-function and high integration, but it is easy…

Fig.4 ER-QA-03C Quartz Accelerometer for Aerospace

Optimizing Compensation Loop for Quartz Accelerometer

The quartz flexure accelerometer mainly consists of torque generator, pendulum assembly, differential capacitance sensor, and rebalancing loop, widely used in the aerospace…