IMUP8 is a MEMS inertial measurement unit (IMU) with 6 degrees of freedom (DOF) developed by Forsense (Shanghai) Technology Co., Ltd. It features three_axis gyroscopes and three_axis accelerometers, measuring angular velocity and linear acceleration respectively.
High precision and high resolution combine to help capture subtle vibration and tilt. A large number of output parameters enable the perception of motion despite intense shaking. All IMU modules are calibrated independently on a rotary table and adjusted precisely over an ultra_wide temperature range in a temperature chamber before leaving the factory, so that they can deliver stable and consistent performance in most extreme conditions.
Features
MEMS Gyroscope
●Bias Instability: 0.5°/hr
●Angle Random Walk: 0.1°/√hr
●Temperature Drift: 30°/hr
(-40℃ ~ 85℃，≤1℃/min @1σ)
MEMS Accelerometer
●Bias Instability: 20μg
●Velocity Random Walk: 0.035m/s/√hr
●Temperature Drift: 1mg (-40℃ ~ 85℃，≤1℃/min @1σ)
Refined temperature compensation
●Temperature Compensation: -40℃ to 85℃
●Precise Temperature Calibration
Independent Rotary Table Calibration
●Sensitivity, bias instability, and misalignment
●Providing a user interface for calibrating installation errors
High-intensity Tolerance
●Ultra Shock Resistance: 2000g（0.5ms，Half-sine shock pulse，3-axis）
●Superb Vibration Resistance: 10g（10~2KHz，3-axis）
●Ultra-wide Operating Temperature Range: -40℃ to 85℃
●100% Magnetic Shielding
Benefits
●Real-time and Flexibility: Configurable output sampling rate up to 1KHz
●Digital Interface: RS-422
●Small Size and Low Weight: 38.6*44.8*21.5mm, about 74g
Gyroscope Key Metrics
Parameter | Test Conditions/ Remarks | Min. | Typ. | Max. | Unit |
Measurement Range | ±300 | °/s | |||
Bias instability | @25℃, Allan Variance, 1σ | 0.5 | °/hr | ||
Bias stability | GJB, 10s smooth | 2 | °/hr | ||
Bias Repeatability | GJB | 3 | °/hr | ||
| Resolution | 0.0041 | °/s | |||
Misalignment | 0.02 | deg | |||
Internal Low-pass Cutoff Frequency | Adjustable software | 75 | Hz | ||
Sampling Rate | 1000 | Hz | |||
Measure Delay | 7.2 | ms | |||
Offset Error over Temperature¹ | -40℃ ~ 85°C ≤1℃/min @1σ | 30 | °/hr | ||
Random Walk² | @25℃, Allan Variance, 1σ | 0.1 | °/√hr | ||
Scale Coefficient Error | 1.0 | ‰ | |||
Scale Factor Nonlinear | 200 | ppm |
Note 1: 1σ variation of full-temperature bias at a heating rate of 1℃/min
Note 2: IEEE standard values acquired from Allan Variance analysis in a static environment (25°C)
Accelerometer Key Metrics
Parameter | Test Conditions/Remarks | Min. | Typ. | Max Measurement Range (Optional) | Unit |
Measurement Range | ±6 | ±20 | g | ||
Bias Instability | @25℃, Allan Variance, 1σ | 20 | 25 | μg | |
Bias stability | GJB, 10s smooth | 30 | 60 | °/hr | |
Bias Repeatability | GJB | 20 | 40 | °/hr | |
| Resolution | 0.0816 | 0.0816 | °/s | ||
Misalignment | 0.02 | 0.02 | deg | ||
Internal Low-pass Cutoff Frequency | Adjustable software | 75 | 75 | Hz | |
Sampling Rate | 1000 | 1000 | Hz | ||
Measure Delay | 7.2 | 7.2 | ms | ||
Offset Error over Temperature¹ | -40℃~85℃ ≤1℃/min @1σ | 1.0 | 1.0 | mg | |
| Random Walk² | @25℃, Allan Variance, 1σ | 0.035 | 0.04 | m/s/√hr |
Note 1: 1σ variation of full-temperature bias at a heating rate of 1℃/min
Note 2: IEEE standard values acquired from Allan Variance analysis in a static environment (25°C)
FSS-IMUP8_Datasheet_Product Manual
Instructions for ROS Driver in FSS-IMU.pdf
IMU Communication Protocols Manual.pdf
Software and Driver Example:
External Structure
Outline Structure and Dimensions (unit: mm)
IMU Array Center (unit: mm)
♦ Product classification
♦ Contact Us
| Telephone： | 86-13482465596 |
| E-MAIL ： | yang_fan@forsense.cn |
| Position ： | Room 4F,Building 16,No. 1000 JinhaiRoad, City of Elite,,Pudong New Area,Shanghai |
 |  |  |  |
| Sample purchase |