Our MEMS based Inertial Measurement Unit

Our Top-Notch MEMS IMU​

15,000+ Systems in Operation in 35+ Countries

Custom Solutions Trusted by Global Key Players

GuideNav’s Inertial Measurement Unit (IMU) represents the pinnacle of precision and reliability. Designed to deliver exceptional performance, our IMUs provide accurate measurements of angular velocity and linear acceleration, critical for navigation and control systems in aerospace, defense, and industrial applications.  

Guidenav‘s Featured MEMS based imu Model

FEATURED MEMS IMU MODELS​

  • High Temperature
  • Bias instability ≤2°/h
  • Gyro angular random walk:0.03m/s/√hr
  • ± 300 °/s range
  • Weight:<20 grams
  • Cost-effective
  • Bias instability ≤1.2°/h
  • Gyro angular random walk:0.06m/s/√hr
  • ± 450 °/s range
  • Weight:<40 grams
  • High Precision
  • Bias instability ≤0.8°/h
  • Gyro angular random walk:0.06m/s/√hr
  • ± 450 °/s range
  • Weight:<40 grams
  • Ultra-high precision
  • Bias instability ≤0.1°/h
  • Gyro angular random walk:0.06m/s/√hr
  • ± 450 °/s range
  • Weight:<40 grams

Get Your Custom Solution Now

Your project deserves a solution tailored to your exact specifications. To ensure we provide the best Inertial Measurement Units (IMU) for your needs, we invite you to share the specific parameters and performance requirements of your applications. Whether it’s precision, stability, or size constraints, our team is ready to help you find the perfect fit. 

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Introducing Inertial Measurement Unit (IMU)

What is Inertial Measurement Unit (IMU)

An Inertial Measurement Unit (IMU) is an advanced sensor system that precisely tracks an object’s motion and orientation in three-dimensional space. It combines multiple sensors, typically accelerometers and gyroscopes, to measure linear acceleration and angular velocity, respectively. In some configurations, magnetometers are also integrated to provide additional orientation data relative to the Earth’s magnetic field.

IMUs play a crucial role in navigation and control systems across various high-stakes industries, such as aerospace, defense, and autonomous systems. By delivering real-time, high-precision data on position, velocity, and orientation, IMUs ensure that complex systems maintain stability and accuracy under dynamic conditions, enabling reliable performance even in environments with high levels of vibration, shock, or other disruptive forces.

MEMS Gyroscope

Why Use a Complex IMU Instead of Just a Gyroscope?

 

While a gyroscope measures angular velocity, it suffers from drift over time and cannot provide absolute position or orientation. An IMU integrates accelerometers and magnetometers with the gyroscope to correct drift, provide initial orientation, and deliver comprehensive 3D motion data, ensuring accurate and reliable attitude measurement over time.

  • Drift Correction: Gyroscopes alone suffer from drift over time. An IMU includes accelerometers and magnetometers to correct this drift and maintain accuracy.

  • Initial Orientation: A gyroscope cannot provide initial orientation, but an IMU can, using accelerometers to detect gravity and magnetometers for heading.

  • Comprehensive 3D Motion Data: IMUs measure not just rotation but also linear acceleration, offering a full picture of motion in three dimensions.

  • Improved Accuracy: By combining data from multiple sensors, an IMU delivers more accurate and reliable attitude measurements, especially over long periods.

Manufacturing Process

Manufacturing Process of MEMS IMU

01

STEP 1 :Customer Customization & Parameter Definition

Define key parameters such as drift rate, noise density, temperature drift, and linearity based on the specific application requirements of the customer. Ensure these parameters meet the required precision, stability, and environmental adaptability. Design and manufacture the MEMS sensors, including accelerometers and gyroscopes, and integrate them into a single module.

02

STPE 2 :Circuit Design & Integration

Design and integrate the sensor signal processing circuits, including signal amplification, filtering, and analog-to-digital conversion. These functions are typically integrated into an ASIC or microcontroller for high-level integration.

03

STPE 3 :Automated Calibration

Perform zero-point calibration, dynamic testing, and temperature compensation on the accelerometers and gyroscopes using an automated testing platform to ensure sensor accuracy and stability.

04

STPE 4 :Packaging & Testing

Compactly package the MEMS chips and circuits, and conduct environmental adaptability testing, such as temperature, vibration, and shock tests, to ensure the IMU’s reliability and performance under various conditions.

MEMS IMU VS FOG IMU Which is Better ?

  • FOG IMU: Remains the preferred choice for high-precision applications, especially where long-term stability is critical, such as in aerospace, precision navigation, and defense. Despite their larger size and higher cost, FOG IMUs excel in performance under extreme environmental conditions.

  • MEMS IMU: With advancements in technology, MEMS IMUs have reached accuracy levels comparable to mid-range FOG gyroscopes in many scenarios and are widely used in both military and high-precision civilian fields. Their strengths lie in miniaturization, low power consumption, and versatility across various applications.

Feature FOG IMU MEMS IMU
Operating Principle Measures angular velocity based on the Sagnac effect in fiber optic interference Measures acceleration and angular velocity through micro-mechanical structures in MEMS technology
Accuracy High accuracy, ideal for demanding navigation and control applications, especially with long-term stability Wide range of accuracy; some high-end MEMS IMUs have achieved comparable accuracy to mid-level FOG gyroscopes, suitable for various applications including military scenarios
Drift Rate Typically features very low drift rate, suitable for long-term continuous operation Drift rate has significantly improved with technological advancements; some high-end models can rival FOG IMUs
Size and Weight Larger and heavier, suitable for high-precision applications where space and weight are not constraints Compact and lightweight, ideal for space-constrained applications, widely used in portable devices and military applications
Power Consumption Higher power consumption, suitable for systems where power requirements are not a major concern Low power consumption, ideal for battery-powered portable devices and long-duration missions
Cost Higher production cost, suited for high-end applications Varies from low to medium cost, suitable for large-scale consumer, industrial, and military applications
Resistance to Interference Insensitive to electromagnetic interference, ideal for complex electromagnetic environments Resistance to interference has improved with design and packaging advancements; most MEMS IMUs now offer good resistance to electromagnetic interference
Temperature Stability Excellent temperature stability, suitable for extreme environments With temperature compensation techniques, many high-end MEMS IMUs perform stably across a wide range of temperatures
Applications High-precision navigation, aerospace, marine, defense, and other high-end applications Widely used in consumer electronics, drones, military equipment, industrial automation, automotive electronics, and more
A Step-by-Step guide to help you find the right imu

How to Select/Customize the Right
Inertial Measurement Unit (IMU)

STEP 1
Define Application Requirements

Work with GuideNav’s engineering team to identify the specific application scenarios and performance needs, such as accuracy, drift rate, environmental conditions, and size constraints.

STEP 2
Select IMU Type

Based on the defined requirements, determine whether a MEMS or FOG-based IMU is more suitable for the application, considering factors like precision, cost, and environmental robustness. 

STEP 3
Specify Key Parameters

Collaborate with the engineering team to define critical parameters such as sensitivity, noise density, temperature stability, and power consumption that align with the application’s needs.

STEP 4
Customization Options

Offer customization options for the IMU, including specific sensor configurations, housing materials, and interface types to match your unique requirements. 

STEP 5
Prototype and Validation

Develop a prototype based on the selected specifications and perform rigorous testing to validate that the IMU meets all performance criteria and application demands.

STEP 6
Integration and Compatibility

After successful validation, finalize the IMU configuration, and assist you with integration into your system, providing support for any necessary adjustments. 

Our Adavantages

Why Choose Guidenav?

Trusted by keyplayers

Our advanced inertial navigation products are trusted by leading organizations in the aerospace, defense, commercial, and industrial sectors from over 25 countries. Our reputation for reliability and precision sets us apart.

Top Performance

Our products deliver top-tier performance with excellent bias stability. Designed for the most demanding applications, our MEMS based IMU can reach bias instability as precise as ≤0.1°/h.

Proven in Harsh Environment

Our solutions are built to withstand extreme conditions, providing consistent performance in harsh environments.

Excellent Performance under Vibrations

Our MEMS and FOG IMU technology excels in high-vibration settings, ensuring accuracy and stability even in the most challenging operational environments.

PLUG & PLAY System

Our systems are designed for easy integration, offering plug-and-play solutions that simplify installation and reduce setup time, allowing you to focus on your mission.

ITAR-FREE

Our products are ITAR-free, offering you the advantage of easier international transactions and fewer regulatory hurdles. Choose GuideNav for seamless global operations.

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Our Factory - See to Believe

Why Choose Us​

Comprehensive Solutions for All Your Navigation Needs

Commercial Grade Coverage

Bias Stability: >0.2°/h
Solution: MEMS based Gyroscope/IMU/INS
Applications: car navigation, unmanned aerial vehicles, transportation, robotics etc.

Tactical Grade Coverage

Bias Stability: 0.05°/h-0.2°/h
Solution: Fiber Optics and MEMS based Gyroscope/IMU/INS
Applications: armored vehicles operations, anti-aircraft artillery, precision targeting etc.

Navigation Grade Coverage

Bias Stability: ≤0.05°/h
Solution: Fiber Optics & Ring Laser Gyroscope/IMU/INS
Applications: medium and long-range guidance, military aviation, satellites

FAQS

Answers to Your Questions