High Performance Inertial Measurement Unit

• Customization: Available
• Type: Inertial Measurement Unit
• Output Signal Type: Digital Output
• Model NO.: IMU488M
• Accuracy Grade: 1degree/H
• IP Rating: IP67
• Certification: ISO
• Customized: Non-Customized
• Dynamic Range: Gyro: +-450deg/S, Acc: +-16g
• Bias Stability: Gyro: 1deg/H, Acc 30ug (Allan)
• Working Temperature: -40~+85degc
• Interface: Uart, Spi
• Transport Package: Carton
• Specification: 47*44*14mm
• Trademark: SkyMEMS
• Origin: China
• HS Code: 9014100000
• Production Capacity: 2000/Month

Product Description

IMU488M High Performance Inertial Navigation System (IMU) Inertial Measurement Unit Inertial Sensor


Main Features
- Precision 10DoF IMU, Pin to Pin Replace ADIS16488
- Range (Typical): Gyro ±450°/s, Acc ±16g
- Bias Instability (Allan): Gyro: 1°/h, Acc 30μg
- Full Temperature Range Accuracy Assured
- High Bandwidth (Typical): 200Hz
- UART and SPI, SPI Output Rate up to 2000Hz
- Compact & Light Weight 47×44×14mm, < 50g
-Working Temperature: -40~+85°C


Brief Introduction
IMU488M Inertial Measurement Unit is a high performance tactical grade MEMS Inertial Measurement Unit, which MEMS gyroscope enjoys 1°/h (Allan) bias instability and MEMS accelerometer enjoys 30μg (Allan) bias stability, and it can output precise 3 axis outputs of angular rate, 3 axis acceleration data, 3 axis magnetometer data, and barometer data, etc.

IMU488M Inertial Measurement Unit adopts latest MEMS technology and advanced MEMS components, and IMU488M has been produced in bulk, which reduces the cost deeply. IMU488M enjoys excellent measurement performance, small size, light weight, and high reliability and robustness, it can output precise measurement data in harsh environment, and it has been widely applied in tactical unmanned aerial vehicles, surface vehicle, platform stabilization, industrial robotics, etc.


Technical Specifications  

Parameter	Test Condition	Value			Unit
		Min	Typical	Max
Gyroscopes
Range^1			±450		°/s
Bias Instability	Allan variance		1		°/h
	10s average (-40~+85°C, fixed temp.)	2	3	4	°/h
Bias Repeatability			2		°/h
Radom Walk			0.1		º/√h
Bais	Bias change at full temp. range^2		±0.04		°/s
	Bias change in vibration conditions^3		6		°/h
Scale Factor Nonlinearity			100		ppm
Bandwidth			200		Hz
Accelerometers
Range^1			±16		g
Bias Instability	Allan variance		0.03	0.045	mg
	10s average (-40~+85°C, fixed temp.)		0.06		mg
Bias Repeatability			0.06		mg
Random Walk			0.01		m/s/√h
Non-linearity			100		ppm
Bandwidth			200		Hz
Magnetometer
Range		±2			Gauss
Resolution			120		uGauss
Noise RMS	10Hz		50		uGauss
Bandwidth			200		Hz
Barometer
Pressure Range		450		1100	mbar
Resolution			0.1		mbar
Absolute Accuracy			1.5		mbar
Interface
UART^4
Baud Rate			230400		bps
Output Rate			200		Hz
SPI
Serial Clock Frequency				25	MHz
Output Rate			2000		Hz
Reliability
MTBF	20000h
Continuous Working Time	120h
Electronic Features
Supply Voltage	3.3V
Power Consumption	1.5W
Ripple Wave	100mV (P-P)
Environment Conditions
Operating Temperature	-40°C ~ 85°C
Storage Temperature	-55°C ~ 105°C
Vibration Resistance	20~2000Hz,  6.06g
Shock Resistance	1000g,  0.5ms
Physical Characteristics
Size	47 × 44 × 14 mm
Weight	50grams
Connector	2 × 12 pins
1: The range of Gyroscopes and Accelerometers can be configured in our factory. 2: The bias value is calculated based on the whole temperature change period, the temperature changing rate<=2°C/minute,             temperature range:-40~+85°C; 3: (before vibration average value +after vibration average value) /2-during vibration average value, the vibration conditions are        6.06g, 20~2000Hz 4: The baud rate and output rate can be configured in our factory.

Typical Applications
IMU488M Inertial Measurement Unit is a high performance 10 DoF MEMS-based inertial sensors, which has been widely used in the following fields:
- Unmanned Aircraft

- Industrial Robotics

- Unmanned Surface Vessel

- Platform Stabilization

IMU488M Inertial Measurement Unit widely used in unmanned aircraft

Inertial Measurement Unit (also name as IMU), is an electronic device that measures and reports acceleration, orientation, angular rates, and other gravitational forces. It is composed of 3 accelerometers, 3 gyroscopes, and other sensors also can be optional.

UAV is unmanned aerial vehicle, commonly known as a drone, is an aircraft without a human pilot aboard. The flight of UAVs may operate with various degrees of autonomy: either under remote control by a human operator or autonomously by onboard computers.

IMU488M UAV IMU is a tactical-grade MEMS-based IMU (inertial measurement unit), it is ideal for a range of critical UAV applications, including flight control, antenna stabilization, and navigation, and is also an essential component for inertial navigation systems (INS).

IMU488M UAV IMU provides reliable performance with good accuracy in dynamic environment, it has been widely used in unmanned aircraft by the Chinese leading companies, now more than tens of thousands IMU488M IMU modules are used in the unamend aircraft.

IMU488M Inertial Measurement Unit widely used in Autonomous Vehicles

The typical IMU for autonomous vehicles use includes a three-axis accelerometer and three-axis rate sensor. The inertial measurement unit (IMU) is a device that directly measures a vehicle's three linear acceleration components and three rotational rate components (and thus its six degrees of freedom). An IMU is unique among the sensors typically found in an unmanned vehicle because an IMU needs no connection to or knowledge of the external world. This environment independence makes the IMU a core technology for both safety and sensor-fusion.

An accurate IMU can also determine and track attitude precisely. When driving, the direction or heading of the unmanned vehicle is as crucial as its position. Driving in a slightly wrong direction even briefly may put the unmanned vehicle in the wrong lane. Dynamic control of the unmanned vehicle requires sensors with dynamic response. An IMU does a nice job of tracking dynamic attitude and position changes accurately. Its fully environment-independent nature lets an IMU track position even in tricky scenarios such as slipping and skidding where tires lose traction.

IMU488M IMU modules provide reliable performance with good accuracy in dynamic environment, it has been widely used in autonomous vehicles by the Chinese leading companies, now more than hundreds of thousands IMU488M IMU modules are used in the autonomous vehicles.

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