Quartz vibrating Beam Accelerometers
The quartz vibrating beam accelerometer is designed based on the vibrating beam principle. It typically utilizes a vibrating beam made of quartz material (usually a small quartz beam) to sense acceleration. The frequency of the vibrating beam changes with acceleration, and this change can be detected by an electronic system. Basic Operating Principle: Vibrating Beam: […]
Quartz accelerometer & Quartz vibrating Beam Accelerometer
The Quartz Accelerometer and Quartz Vibrating Beam Accelerometer share some similarities in their working principles, but they differ fundamentally in structure and measurement methods. Both are based on quartz material sensors, but their designs and application fields are distinct. Quartz Accelerometer As previously mentioned, the Quartz Accelerometer primarily utilizes the piezoelectric effect to measure acceleration. […]
Quartz accelerometer
The quartz accelerometer primarily uses the piezoelectric effect to measure acceleration. When the quartz crystal is subjected to acceleration or force, it undergoes slight deformation, generating electrical charges. These charge changes can be used to measure the magnitude and direction of the acceleration. Basic Operating Principle: When the object accelerates, the internal structure consisting of […]
Quartz resonating beam accelerometer
The quartz resonating beam accelerometer is designed based on the vibrating beam principle. It typically uses a vibrating beam made of quartz material (usually a small quartz beam) to sense acceleration. The frequency of the vibrating beam changes with acceleration, and this change can be detected by an electronic system. Basic Operating Principle: Vibrating Beam: […]
PZ-90 GS
The geodetic coordinate system established by Russia. The origin of its coordinate system is located at the Earth’s center of mass, with the Z-axis pointing towards the Protocol Earth Pole (CTP) defined by BIH1984.0, the X-axis pointing towards the intersection of the zero-degree meridian of BIH1984.0 and the CTP equator, and the Y-axis following the […]
Precision
Precision refers to the consistency of the system’s output, specifically the distribution of errors across multiple measurements. A system with high precision may produce very similar results across several measurements, but these results do not necessarily align with the true value.
Positioning Accuracy
Positioning accuracy refers to the degree of closeness between the estimated position of an object (e.g., a receiver, satellite, or vehicle) and its true or actual position. It is a critical metric in navigation and geolocation systems like GPS, GNSS, and other positioning technologies. The accuracy determines how reliably and precisely a system can provide […]
Position Accuracy
Position Accuracy: Refers to the difference between the estimated position and the true position. INS uses inertial sensors (e.g., accelerometers, gyroscopes) for motion monitoring and calculates the position by integrating acceleration and angular velocity. Due to the accumulation of sensor errors, position accuracy may gradually degrade over time. Position Accuracy is typically expressed in meters […]
Maximum Error
In the context of inertial navigation systems (INS), Maximum Error refers to the largest possible error in the system’s output, such as position, velocity, or heading, when compared to the actual or true value. How it works in INS: Calculate the error: For each position or measurement, subtract the estimated value (from the INS) from […]
Magnetic North
Magnetic North refers to the direction in which a magnetic compass needle points, which is influenced by Earth’s magnetic field. Unlike True North (which is the direction toward the geographic North Pole), Magnetic North is the point on Earth’s surface where the planet’s magnetic field lines converge, near the Earth’s magnetic North Pole. Key Points […]
