The invention discloses a test method and a tester for an inertial measurement unit. The test method comprises the steps of: placing the to-be-tested inertial measurement unit on a flat plate system,and carrying out the basic performance test on the to-be-tested inertial measurement unit; when the basic performance test of the to-be-tested inertial measurement unit is unqualified, placing the to-be-tested inertial measurement unit on a rotary table system, performing precision test on the to-be-tested inertial measurement unit, and positioning a fault of the to-be-tested inertial measurementunit; and after the fault of the to-be-tested inertial measurement unit is positioned, parameter calibration and writing are carried out, and correction of the to-be-tested inertial measurement unit is completed. According to the test method, rapid maintenance, fault diagnosis and error model parameter correction of the inertial measurement unit can be realized, and the test and maintenance time and workload of the inertial measurement unit are effectively reduced.

Test method and tester for inertial measurement unit

The invention discloses a laser gyroscope scale factor test system. The laser gyroscope scale factor test system comprises a turntable; the turntable is connected with a turntable control cabinet; a scale factor test tooling is arranged on the turntable; the scale factor test tooling comprises a laser gyroscope, a scale factor test plate and a power supply module; both the laser gyroscope and thescale factor test plate are respectively connected with the power supply module electrically; the power supply module is also connected to a direct-current voltage stabilization source through a turntable conductive ring; the output signal of the laser gyroscope is connected with the scale factor test plate; the turntable control cabinet is connected with the scale factor test plate through the turntable conductive ring; and the scale factor test plate is connected to a scale factor upper computer through an RS422 serial interface. The invention further discloses a laser gyroscope scale factortest method. Due to integrated installation of the test tooling and filtering of integral period signals of the turntable, the main error in the scale factor test process is effectively eliminated; and thus, the scale factor test precision is greatly increased.

Zhang Peng

Papers

Laser gyroscope scale factor test system and method