IMU30S Strapdown Inertial Measurement Unit

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IMU30S Inertial Measurement Unit

IMU 30S family employs the latest closed-loop FOG and Quartz Flexible accelerometer technology. It is a small, lightweight, high performance strap-down Inertial Measurement Unit (IMU), suited for navigation, line of sight stabilization and flight control.IMU30S is a high performance navigation grade Inertial Measurement Unit (IMU) designed to meet the needs of a broad range of navigation,guidance and control applications. The IMU30S has been successfully deployed on a wide range of weaponry, UAVs, stabilized platforms and commercial applications.

Product Features

● Small Size,easy to integrated

● Synchronous Data Link

● High Precision Quartz Flexible accelerometer(QA5108)

Technical Specification

The main performance indicators

SN	Parameters		value	Remark
1	Gyro Dynamic Range(º/s)		±500
2	Triaxial acceleration measurement range（g）		±30
3	Gyro Bias repeatability(1σ，º/h)		≤0.5	Room Temperature
4	Gyro Bias Stability（10s，1σ，º/h）		≤0.5	Room Temperature
5	Gyro Bias Stability（10s，1σ，º/h）		≤1	Changeable Temperature
6	Triaxial accelerometer bias repeatability(1σ，º/h，mg)		≤0.5	Room Temperature
7	Triaxial accelerometer bias stability（10s，1σ，mg）		≤0.5	Room Temperature
8	Gyro scale factor nonlinearity, asymmetry（ppm）		≤300
9	Gyro scale factor repeatability（ppm）		≤300
10	Triaxial accelerometer scale factor nonlinearity, asymmetry（ppm)		≤500
11	Triaxial accelerometer scale factor repeatability（ppm)		≤500
12	Gyro Vibration （º/h）	Before Vibration and in Vibration	1
		In Vibration and After Vibration
		Before Vibration and After Vibration
13	Accelerometer（mg）	Before Vibration and in Vibration	1
		In Vibration and After Vibration
		Before Vibration and After Vibration

Physical Size and Power Supply

SN	Parameters	Unit	Value
1	Size	DXH	9.0cmx10.5cm
2	Weight	Grams	850
3	Power	W	14
4	Temperature	°C	-45 to 71
5	Temperature Gradient	°C/min	2
6	Power Input	VDC	+28/0.5A
7	Interface		SDLC, RS422
8	Data Rates	bps	115200
9	Sync		External or Internal

Applications

● Weaponry
● Ground survey
● UAVs
● Mobile mapping
● Stabilized platforms

Scanning frequency vibration

Test Method: 10 ~ 2000 ~ 10Hz, scanning frequency rate 1oct / min, in X, Y, Z three directions.

Index requirements: the before and after average vibration and in vibration bias absolute≤1 º/ h, the before and after vibration zero deviation ≤0.3 º/h.

Figure 2. Scanning frequency vibration

Random Vibration

Test Method: Each direction of vibration time: 5min, X, Y, Z each time, vibration power spectral density is shown in Figure 3.

Index requirements:the before and after average vibration and in vibration bias absolute≤1 º/ h, the before and after vibration zero deviation ≤0.3 º/h.

Figure 3. Random vibration power spectral density graph (with vibration 6.06g)

Shock

20g, 11ms, half-sine, 3 directions, 3 times per direction;

The zero deviation requirement for the impact of before and after: ≤0.3 °/ h.

Dimensions

Dimensions: Φ (90±0.1) mm × (90±0.1) mm×(102 ± 0.5) mm, shown in Figure 1,

Installation pitch: (75±0.05) mm × (75±0.05) mm, mounting screw :M6.

Figure 3 IMU30S Dimensions

What is an Inertial Measurement Unit (IMU)?

An IMU is made up of six complimentary sensors arrayed on three orthogonal axes, each axes has an accelerometer and gyroscope which allows an IMU to measure its precise relative movement in 3D space.

How do IMUs Work?

The accelerometers measure linear acceleration and the gyroscopes measure rotational acceleration. This information allows the IMU to measure its precise relative movement in 3D space. IMU measurements are also able to provide an angular solution about the three axes.

How to Installation?

Testing Setup

Gyro Parameters
Gyro Dynamic Range	±500 °/s
Tri-Axial Axis Angular Velocity Scale Factor Nonlinearity, Asymmetry	≤ 300 ppm (1σ)
Tri-Axial Axis Angular Velocity Scale Factor Repeatability	≤ 300 ppm (1σ)
Tri-Axial Axis Angular Velocity Bias Stability at Room Temperature	≤ 0.5 °/h (10s, 1σ)
Tri-Axial Axis Angular Velocity Room Temperature Bias Repeatability	≤0.5 °/h (1σ)
Tri-Axial Axis Angular Velocity Bias Stability Full Temperature	≤1 °/h (10s, 1σ)
Tri-Axial Axis Angular Velocity Random Walk	≤ 0.05 °/√h
Bias in Vibration Towards Before Vibration and After Vibration	≤ 1 °/h
Bias (before vibration and after vibration)	≤ 0.3 °/h
Accelerometer Parameters
Tri-Axial Acceleration Measurement Range	±30 g
Tri-Axial Accelerometer Scale Factor Repeatability	≤ 300 ppm (1σ)
Tri-Axial Accelerometer Scale Factor Nonlinearity	≤ 300 ppm (1σ)
Tri-Axial Axis Accelerometer Bias Repeatability	≤ 0.5 mg (1σ)
Tri-Axial Accelerometer Bias Stability	≤ 0.5 mg (1σ)
System Parameters
Start Time (Output data scheme must be stated explicitly, immediate data with a possibility of 1/2000 less accuracy)	< 5 s
Store Temperature	-55 °C .. +85 °C
Operation Temperature	-45 °C .. +71 °C
Color	Black Anodized
Weight	1200 g
Interface	J30J-21ZKP3
Voltage	18-36V

IMU30S Allan Variance Test - 1 2 Hours 100 Hz At Room Temperature

Strapdown Inertial Measurement Unit User Manual and maintenance instructions

solid model of IMU30

IMU30S Test Report

IMU30S Inertial Measurement Unit

Product Features

Technical Specification

Applications

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