Introduction The L30IMU-30 Laser Gyro Inertial Measurement Unit (IMU) is a high-precision, compact inertial measurement unit. Its core inertial sensors consist of three-axis Model 30 laser gyros combined with three-axis quartz flexible accelerometers. It primarily includes: a secondary power supply, navigation computer, current-to-frequency conversion circuit, gyro control board, gyroscopes, accelerometers, and mechanical structure, etc. It can measure the carrier's angular velocity, acceleration, and attitude information in real-time, and possesses excellent performance under full temperature range, high dynamic, and strong vibration/shock conditions.