LPMS-HR: High-Resolution IMU for Robotics & Autonomous Systems
LPMS-HR
Description
The LPMS-HR is a high-resolution MEMS Inertial Measurement Unit (IMU) designed for precision motion sensing in robotics and autonomous systems. Combining a 3-axis gyroscope and 3-axis accelerometer in a compact 22.4 × 22.4 × 11 mm aluminum housing, the LPMS-HR delivers real-time 6-DOF orientation, linear acceleration, and angular velocity data. These essential motion inputs that keep robots stable, accurate, and aware of their environment. Available in USB, RS232, and TTL variants, it integrates cleanly into a wide range of robotic architectures and control systems.
High-Resolution Motion Sensing for Precise Robot Control
The LPMS-HR features a 16-bit accelerometer and 16-bit gyroscope delivering angular resolution down to 0.01°, giving your robot control system the fine-grained motion data it needs to respond accurately and consistently. The sensor computes orientation data onboard, outputting Euler angles, quaternions, linear acceleration, and angular velocity in real time at up to 1,000 Hz.
This level of resolution is critical for applications like balance control in humanoid robots, smooth trajectory execution in mobile platforms, and stable attitude estimation in construction or industrial machinery where even small motion errors can compound into significant operational issues.
Built for Dynamic Robotic Environments
Unlike general-purpose IMUs, the LPMS-HR is engineered for the demands of dynamic, real-world robotic deployment. Its baud rate supports up to 921,600 bps, ensuring low-latency data delivery even in bandwidth-sensitive systems, while built-in time synchronization support allows seamless coordination across multi-sensor or multi-robot setups.
The sensor’s aluminum alloy housing and industrial operating temperature range of −40°C to +85°C make it reliable across indoor factory floors, outdoor field environments, and vehicle-mounted deployments — wherever your robot needs to operate.
Flexible Connectivity & Easy System Integration
The LPMS-HR is available in three interface variants – USB, RS232, and TTL – to match your existing system architecture without additional conversion hardware. With a wide operating voltage range of 5V to 36V, it accommodates both low-power embedded systems and higher-voltage industrial power buses.
Communication uses the LPBUS / ASCII protocol, compatible with LP-Research’s software ecosystem. All sensor data types — raw sensor output, Euler angles, quaternions, linear acceleration, and temperature are accessible through a unified interface, reducing integration complexity for engineering teams.
Compact Form Factor — Maximum Deployment Flexibility
At just 22.4 × 22.4 × 11 mm and 10g, the LPMS-HR fits into space-constrained robot designs without compromising on performance. Whether mounted inside a robot joint, embedded in a mobile platform chassis, or integrated into a gimbal system, its small footprint and standard Molex 5015680607 connector make mechanical and electrical integration straightforward.
This compact, lightweight profile also makes it well-suited for humanoid robot development where every gram and millimeter of space matters across dozens of integration points.
Key Features
- High-Resolution MEMS IMU – 16-bit gyroscope and accelerometer with 0.01° angular resolution
- Full 6-DOF Inertial Sensing – 3-axis gyroscope + 3-axis accelerometer in a single unit
- Real-Time Onboard Processing – Euler angles, quaternions, linear acceleration, and angular velocity computed at up to 1,000 Hz
- Three Interface Variants – USB, RS232, and TTL for flexible system integration
- Wide Operating Voltage – 5V (USB) or 5~36V (RS232/TTL) for embedded and industrial systems
- Time Synchronization Support – Enables multi-sensor and multi-robot coordination
- Wide Baud Rate Range – Supports up to 921,600 bps
- Industrial Temperature Rating – Reliable operation from −40°C to +85°C
- Compact & Lightweight – 22.4 × 22.4 × 11 mm, 10g — designed for space-constrained deployments
- Ruggedized Housing – Aluminum alloy enclosure for industrial and field environments
Applications
- Mobile Robots (AGV / AMR) – Real-time orientation and acceleration feedback for navigation, path following, and dynamic stabilization
- Humanoid Robots – Precision body and joint motion tracking for balance control and coordinated limb movement
- Construction & Industrial Machinery – Tilt, pitch, and roll monitoring for safety interlocks, leveling systems, and operational control
- Platform Stabilization & Control – Closed-loop motion feedback for gimbal, camera, antenna, and vehicle stabilization systems
- Vehicle-in-the-Loop (ViL) Testing – High-frequency, accurate motion capture in dynamic automotive and robotics test environments
- Research & Prototyping – Versatile IMU solution for academic labs, robotics R&D teams, and system integrators
Looking for a compact, high-resolution IMU that integrates cleanly into your robotics system? The LPMS-HR delivers precision motion sensing in a deployment-ready package. 📥 Download the datasheet or contact us for integration support and pricing.
Downloads
Flyer (LPMS-HR EN , LPMS-HR JP )
Specifications
| Part Number | LPMS-HR USB | LPMS-HR RS232 | LPMS-HR TTL |
| Interface | USB | RS232 | TTL |
| Communication Protocol | LP-BUS/ ASCII | LP-BUS/ ASCII | LP-BUS/ ASCII |
| Size | 22.4 × 22.4 × 11 mm | ||
| Weight | 10 (±0.5) g | ||
| Orientation Range | Roll: ±180° / Pitch: ±90° / Yaw: ±180° | ||
| Resolution | 0.01° | ||
| Time Synchronization | Supported | ||
| Baud Rate | 9,600 ~ 921,600 bps | ||
| Accelerometer Range | 3-axis, ±3 / ±6 / ±12 / ±24g, 16-bit | ||
| Accelerometer Zero Bias | 20mg | ||
| Accelerometer Temp. Drift | <0.2mg/K | ||
| Accelerometer Bias Instability | 26.88 μg | ||
| Accelerometer Bias Random Walk | 1.45 deg/h | ||
| Gyroscope Range | 3-axis, ±125 / ±250 / ±500 / ±1000 / ±2000 dps, 16-bit | ||
| Gyroscope Zero Bias | ±1 dps | ||
| Gyroscope Temp. Drift | ±0.015 dps/K | ||
| Gyroscope Noise Density | 0.014 dps/√Hz | ||
| Gyroscope Bias Instability | 4.41 deg/√hr | ||
| Gyroscope Random Walk | 1.45 deg/h | ||
| Data Output Type | Raw data / Euler angles / Quaternion / Linear acceleration / Temperature | ||
| Data Output Rate | 5 ~ 1,000 Hz (default: 100 Hz) | ||
| Power Supply | 5V | 5~36V | 5~36V |
| Max Input Current | 38mA (@5V) | 38mA (@5V); 7mA (@36V) | 38mA (@5V); 7mA (@36V) |
| Power Consumption | 0.13W (26mA@5V) | 0.105W (21mA@5V) | 0.095W (19mA@5V) |
| Case Materials | Aluminum | ||
| Operation Temperature | -40 to +85 °C | ||
| Connector Type | Molex 5015680607 | ||
* All specifications measured at standard temperature +25°C. Reference values may vary under different temperature conditions.
**RS232/TTL Power Supply Caution: When connecting a high-power regulated supply (e.g. 48V-to-24V regulator) via RS232 or TTL, a momentary inrush current may occur at power-on and potentially exceed the sensor’s rated limit. Apply power in stages: allow the supply to stabilize fully before connecting to the sensor.
***ASCII Output Mode: In ASCII output mode, the device still responds to LPBUS protocol commands. ASCII output data is computed based on 32-bit floating-point numbers.
Order
| Product | Package contents | Price |
|---|---|---|
| LPMS-HR-USB | 1 x LPMS-HR-USB sensor 1 x Data cable 1 x Warranty service (1 year) |
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| LPMS-HR-RS232 | 1 x LPMS-HR-RS232 sensor 1 x Data cable 1 x Warranty service (1 year) |
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| LPMS-HR-TTL | 1 x LPMS-HR-TTL sensor 1 x Data cable 1 x Warranty service (1 year) |
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