MEMS Inertial Sensor Solutions, IMUs, Gyroscopes and MEMS Accelerometers for Unmanned Vehicles
Silicon Sensing is a leading developer of reliable high-precision MEMS gyroscopes, MEMS accelerometers, IMUs and inertial sensing systems. Our inertial sensors are ideal for a wide range of applications in unmanned systems markets, from UAVs (unmanned aerial vehicles) and drones to driverless cars, autonomous land vehicles, and unmanned surface and underwater vehicles.
Supporting highly accurate measurement, guidance, stabilisation, navigation and control requirements, our products are used to satisfy a variety of dynamic behaviour needs even in the most extreme environments, where component size and weight are critical factors.
The ITAR-free DMU41 is our highest-performing MEMS IMU, providing tactical-grade performance with a more than 40% reduction in SWaP (size, weight and power) characteristics compared to its predecessor. The compact nine degree-of-freedom unit features three inductive and three piezoelectric resonating ring gyroscopes, six capacitive accelerometers and three magnetometers.
The DMU41 provides ultra-precise motion sensing for a wide variety of unmanned systems applications, including drone and AUV navigation, precision mapping and surveying, and more. The unit can output data at rates of up to 2 kHz, and interface options include RS422/485, SPI and CAN.
| Dimensions | 50 x 50 x 50 mm |
| Weight | 200g |
| Dynamic Range | ±490°/s, ±10g |
| Bias Instability | 0.1°/hr, 0.015mg |
| Bias over Temperature | ±7°/hr, ±1.7mg |
| Current Consumption | 125 mA @ 12V |
| Baud Rate | 460800 baud |
More Information: DMU41 MEMS IMU
Board-level 6DOF MEMS inertial sensor for high-volume applications
The DMU11 combines high-precision MEMS inertial angular rate and linear acceleration sensors to provide a six degree of freedom, full 3D motion sensing and tracking solution. Designed for low-cost, high-volume production applications, the DMU11 features a layout specially designed to minimise physical footprint, making it ideal for space-constrained drones and robotics.
The IMU sensor has been fully calibrated over its entire operational temperature range. An evaluation kit for the DMU11 is available to allow designers and system integrators to easily view and log sensor output data for rapid testing and development.
| Dimensions | 22 x 22 x 10.6 mm |
| Rate Dynamic Range | ±300 °/sec |
| Acceleration Dynamic Range | ±10g |
| Rate Bias over Temperature | ±0.25 °/sec |
| Acceleration Bias over Temperature | ±10mg |
| Rate Scale Factor Error | ±0.1% |
| Acceleration Scale Factor Error | ±0.1% |
| Current Consumption | 85 mA |
| Supply Voltage | 5V |
| Data Rate | 200 Hz |
More Information: DMU11 MEMS IMU Sensor
Industrial-grade rugged IMU for harsh environments
The IMU20 is an aerospace- and space-grade IMU specifically designed to meet the high demand for a mid-range, non-ITAR commercial and industrial inertial measurement solution. Highly rugged and engineered to withstand challenging high-impact and vibration environments, it is ideal for unmanned aerial vehicles, satellite launch platforms and more.
The three-axis IMU20 integrates state-of-the-art MEMS inertial sensors calibrated with our sophisticated in-house test facility.
| Dimensions | 59 x 58 x 36 mm |
| Dynamic Range | ±498°/s, ±30g |
| Bias Instability | 2.5°/hr, 0.5mg |
| Bias over Temperature | ±50°/hr, ±3.3mg |
| Current Consumption | 750mA (at 5V) |
| Supply Voltage | 4.75 – 5.25V |
| Baud Rate | 460,800 |
More Information: IMU20 MEMS IMU
The CRS39A is a single-axis MEMS gyroscope designed to fit on a single board, resulting in reduced mass and allowing it to be easily integrated into space-constrained designs. State-of-the-art upgraded electronics provide the unit with significant performance enhancements in bias instability, angle random walk, noise, and vibration tolerance.
The gyro is ideal for a wide range of UAV and autonomous vehicle applications, such as platform stabilisation, guidance and control, and incorporation into high-end AHRS (attitude and heading reference systems).
| Dimensions (LxWxH) | 75 x 24.5 x 10 mm |
| Analogue Dynamic Range | ±25°/sec |
| Bias Setting Error | ±0.012V |
| Scale Factor Setting Error | ±0.17% (at 45°C) |
| Bias over Temperature | ±85 ̊/hr |
| Bias Instability | 0.03°/hr |
| Bandwidth (nominal) | 25Hz ±10Hz |
| Supply Voltage | 5V |
| Current Consumption | 30mA |
More Information: CRS39A Single-Axis MEMS Gyroscope
Low-noise high-performance gyro
The CRH03 is a single-axis MEMS gyroscope that delivers high performance with comparable bias characteristics to FOG and DTG sensors.
Utilising our latest-generation resonating ring gyroscope technology, it features an onboard temperature sensor that allows performance to be fine-tuned according to the operating environment.
The sensor is available as an enclosed product or as an OEM board for developers and systems integrators. Both OEM and housed versions feature five dynamic range options, and the OEM boards are available in three different frequency variants. Some OEM models can also optionally provide a raw uncompensated data output.
| CRH03-010 | CRH03-025 | CRH03-100 | CRH03-200 | CRH03-400 | |
| Dimensions | 47 x 33.5 x 25.4 mm (housed) 29 x 24 x 17.4 mm (OEM) |
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| Analogue Dynamic Range | ±10°/s | ±25°/s | ±100°/s | ±200°/s | ±400°/s |
| Bias Setting Error | ±10mV | ±10mV | ±10mV | ±10mV | ±10mV |
| Scale Factor Setting Error | ±0.17% | ±0.17% | ±0.17% | ±0.17% | ±0.17% |
| Bias over Temperature | ±0.1 ̊/sec | ±0.1 ̊/sec | ±0.15 ̊/sec | ±0.15 ̊/sec | ±0.15 ̊/sec |
| Bias Instability | 0.03°/hr | 0.04°/hr | 0.04°/hr | 0.05°/hr | 0.1°/hr |
| Bandwidth (nominal) | 50 Hz | 50 Hz | 100 Hz | 100 Hz | 100 Hz |
| Supply Voltage | 5V | 5V | 5V | 5V | 5V |
| Current Consumption | 30 mA | 30 mA | 30 mA | 30 mA | 30 mA |
More Information: CRH03 Single-Axis MEMS Gyroscope
Combined single-axis gyro and dual-axis accelerometer
The CMS combi-sensor combines a single axis gyro and dual-axis low-g accelerometer with a dedicated control ASIC to provide robust angular rate and linear acceleration measurement in a small hermetically-sealed surface-mounted package. The sensor features a digital SPI output and independent user-selectable dynamic range and bandwidth on each axis.
The CMS300 and CMS390 provide different measurement orientation formats:
CMS300
CMS390
More Information: CMS300 and CMS390 MEMS Combi-Sensor
Smallest MEMS Gyros for navigation and pointing
The PinPoint® series features our smallest MEMS gyros, with excellent bias performance and noise over temperature, and user-selectable dynamic ranges and bandwidth with analogue and digital outputs. The miniature single-axis gyros are ideal for precision drone and unmanned vehicle navigation, attitude sensing, antenna platform pointing and more.
PinPoint® gyros are available in both flat and orthogonal configurations:
CRM100/102
In-plane angular velocity measurement about an axis perpendicular to PCB
CRM200/202
Orthogonal angular velocity measurement about an axis parallel to PCB
Evaluation boards for the PinPoint® range are available to allow designers and system integrators to easily assess sensor output for rapid testing and development.
| CRM100 | CRM102 | CRM200 | CRM202 | |
| Dimensions | 5.7 x 4.8 x 1.2 mm | 6.3 x 5.5 x 2.7 mm | ||
| Analogue Dynamic Range | ±75 – ±900°/s | ±900 – ±2700°/s | ±75 – ±900°/s | ±900 – ±2700°/s |
| Digital Dynamic Range | ±75 – ±900°/s | ±900 – ±2700°/s | ±75 – ±900°/s | ±900 – ±2700°/s |
| Scale Factor Error over Temperature | ±1.5% | ±1.5% | ±1.5% | ±1.5% |
| Scale Factor Setting Error | ±0.5% | ±3.0% | ±0.5% | ±3.0% |
| Bias over Temperature | ±3 ̊/sec | ±36 ̊/sec | ±3 ̊/sec | ±36 ̊/sec |
| Bias Instability | 12°/hr | 80°/hr | 12°/hr | 80°/hr |
| Bandwidth (nominal) | 5 – 160 Hz | 5 – 160 Hz | 5 – 160 Hz | 5 – 160 Hz |
| Supply Voltage | 3.3V | 3.3V | 3.3V | 3.3V |
| Current Consumption | 4 mA | 4 mA | 4 mA | 4 mA |
More Information: CRM PinPoint®
High-performance linear acceleration measurement in a small surface-mounted package
Our Gemini series integrated MEMS accelerometers are dual-axis MEMS linear acceleration sensing devices featuring a dedicated control ASIC and analogue and digital SPI output interfaces. The units are supplied in surface-mountable standard LCC ceramic packages, hermetically sealed for full environmental protection.
Gemini high precision MEMS accelerometers are available with in-plane or orthogonal sensing, each with five different dynamic range variants. Evaluation boards are available to allow designers and system integrators to easily assess sensor output for rapid testing and development.
MEMS Accelerometer specifications
| CAS211 | CAS212 | CAS213 | CAS214 | CAS215 | |
| Dimensions | 10.4 x 6.0 x 2.2 mm | ||||
| Analogue Dynamic Range | ±0.85g | ±2.5g | ±10g | ±30g | ±96g |
| Digital Dynamic Range | ±0.85g | ±2.5g | ±10g | ±30g | ±96g |
| Bias Repeatability | ±50mg | ±100mg | ±100mg | ±250mg | ±500mg |
| Bias over Temp | ±50mg | ±50mg | ±50mg | ±150mg | ±500mg |
| Noise Spectral Density | ≤100µg/√Hz | ≤150µg/√Hz | ≤150µg/√Hz | ≤350µg/√Hz | ≤1200µg/√Hz |
| Bandwidth (nominal) | >170Hz | >170Hz | >170Hz | >170Hz | >170Hz |
| Supply Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Current Consumption | 3 mA | 3 mA | 3 mA | 3 mA | 3 mA |
| CAS291 | CAS292 | CAS293 | CAS294 | CAS295 | |
| Dimensions | 10.4 x 6.7 x 2.7 mm | ||||
| Analogue Dynamic Range | ±0.85g | ±2.5g | ±10g | ±30g | ±96g |
| Digital Dynamic Range | ±0.85g | ±2.5g | ±10g | ±30g | ±96g |
| Bias Repeatability | ±100mg | ±100mg | ±100mg | ±250mg | ±500mg |
| Bias over Temp | ±50mg | ±50mg | ±50mg | ±150mg | ±500mg |
| Noise Spectral Density | ≤50µg/√Hz | ≤150µg/√Hz | ≤150µg/√Hz | ≤350µg/√Hz | ≤1200µg/√Hz |
| Bandwidth (nominal) | >170Hz | >170Hz | >170Hz | >170Hz | >170Hz |
| Supply Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Current Consumption | 3 mA | 3 mA | 3 mA | 3 mA | 3 mA |
More Information: MEMS Accelerometers
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