The core difference in application of single-axis, dual-axis and three-axis inertial test turntables produced by Jiujiang Ruya Precision lies in the degrees of freedom and test capabilities they simulate, which directly determines the type of test object and test purpose.

1. Single-Axis Turntable

Core Features: Only one axis of rotation, usually horizontal or vertical.

Simulated Degrees of Freedom: Only one direction of angular motion (pitch or yaw) is possible.

Main Applications:

Rate Testing and Calibration: Tests the scale factor (scale factor), linearity, and threshold of gyroscopes.

Position Testing: Tests the accuracy and resolution of angle sensors such as encoders and resolvers.

Functional Verification: Performs basic functional and performance testing of single-axis gyroscopes or accelerometers.

Servo System Testing: Serves as a simple load simulator to test the tracking performance of servo motors.

Advantages: Simple structure, low cost, high accuracy, and easy maintenance.

Applications: Single-axis MEMS gyroscopes, single-axis fiber optic gyroscopes, angle sensors, rate gyroscopes, etc.

2. Dual-Axis Turntable

Core Features: It has two independent axes of rotation, typically in a U-shaped or L-shaped frame (outer and inner frames). The most common combination is azimuth and pitch.

Simulated Degrees of Freedom: It can provide angular motion in two directions, capable of simulating pitch and yaw.

Main Applications:

IMU Testing: Inertial measurement units typically include a three-axis gyroscope and a three-axis accelerometer. A dual-axis turntable allows for precise calibration of two of these axes (for example, calibrating the scale factor and bias of the X- and Y-axis gyroscopes).

Multi-Parameter Calibration: By precisely controlling the position and rate of two axes, sensor performance, such as cross-coupling error and installation error, can be more comprehensively tested.

Simple Navigation Algorithm Verification: It can be used to test and verify simple two-axis stabilized systems or algorithms.

Advantages: Lower cost than a three-axis turntable, yet more powerful than a single-axis turntable, making it a cost-effective option for IMU testing.

Applications: Tactical-grade IMUs, IMUs for drones, IMUs for autonomous vehicles, and dual-axis stabilized platforms.

3. Three-Axis Turntable

Core Features: It has three independent axes of rotation, typically in an "O-O-O" configuration (outer frame, middle frame, and inner frame), simulating azimuth, pitch, and roll degrees of freedom.

Simulated Degrees of Freedom: It can simulate all three angular motions of an object in space, perfectly reproducing the realistic posture changes of aircraft, missiles, vehicles, and more.

Main Applications:

Full-Parameter Calibration and Testing: Capable of performing a one-time and comprehensive calibration of all parameters of the three-axis gyroscope and three-axis accelerometer in an inertial navigation system, including scale factor, zero bias, installation error, nonlinearity, and more.

System-Level Testing: Testing the performance of the entire inertial navigation system under complex motion conditions, verifying the correctness and accuracy of its navigation, positioning, and attitude calculation algorithms.

Dynamic Environment Simulation: Simulating the actual flight paths and maneuvers (such as climbs, turns, and rolls) of aircraft, missiles, submarines, and other equipment for hardware-in-the-loop simulation.

High-Precision Testing: Essential equipment for the development and testing of high-precision laser gyroscope and fiber optic gyroscope navigation systems in the aviation, aerospace, and maritime sectors.

Advantages: Comprehensive functionality, robust testing capabilities, and the ability to provide the most realistic motion environment.

Disadvantages: Complex structure, high technical difficulty, and high cost.

Applications: High-precision strategic/navigation-grade INS, spacecraft seekers, missile guidance systems, and ship navigation systems.