G300D Triaxial Gyroscope

Low noise,
High speed,
Three-Axis Gyroscope

MEMS Gyroscopes and Accelerometers

Micro-Electro-Mechanical Systems (MEMS) have revolutionized sensor technology, providing compact, efficient, and cost-effective solutions for motion sensing. MEMS gyroscopes and accelerometers have applications in aerospace, automotive, robotics, and consumer electronics, offering unprecedented accuracy and reliability in compact form factors. This article explores key MEMS sensors and concepts, with a focus on products from Gladiator Technologies, a leader in high-performance MEMS solutions.

In Israel, Gladiator Technologies is proudly represented by Amironic, your trusted partner for advanced sensor solutions. Together, we bring cutting-edge technology to a variety of industries, ensuring top-notch performance and support.

Key MEMS Sensors by Gladiator Technologies

G300D Triaxial Gyroscope

• Size: 0.6 cubic inches
• Angular Random Walk (ARW): 0.0018°/s/√Hz
• Bias Stability: 0.075°/s
• Bandwidth: 600 Hz
• Data Rates: 10 kHz
• Message Delay: <100 μs

G150Z Single Axis Gyro

• Size: 1.1 cubic inches
• ARW: 0.001°/s/√Hz
• Short-Term Bias Stability: 1.2°/h
• Bandwidth: 200 Hz
• Shock Tolerance: 500g
• Voltage Reference: 4.75V

GA50 Single Axis MEMS Open Loop Accelerometer

• G Ranges: ±5, ±40, ±70
• Size: Extremely compact
• Short-Term Stability: <180 µg
• Noise: Ultra-low <4 µg/√Hz VRW

A300D Three-Axis MEMS Accelerometer

• Sensor Range: ±40g
• VRW: 0.058 mg/√Hz
• Bias Over Temperature: 0.5 mg
• Message Delay: 44 µs
• Size: 0.6 cubic inches
• Bandwidth: 800 Hz

Understanding Key Technical Concepts

Angular Random Walk (ARW)

• ARW measures the noise in angular velocity readings over time, like the jittery motion seen in a compass needle. Expressed in degrees per second per square root of Hz (°/s/√Hz), ARW quantifies the noise-induced error in angular velocity measurements. Lower ARW indicates higher precision.

Bias In-Run Stability

• This represents how consistent a sensor’s readings are when no motion occurs, akin to a scale that stays at zero without fluctuation. Measured in degrees per hour (°/h) or micro-g, it is critical for long-term accuracy, particularly in navigation applications.

Bias Over Temperature

• Sensors can “drift” as temperatures change. This measures how much the bias (constant error) shifts with temperature. Given in mg or °/s, lower values indicate a sensor’s ability to maintain consistent readings across varying temperatures.

G Sensitivity

• This measures how much a gyroscope is affected by linear accelerations, like the jolt felt in a car. Represented in °/s/g, lower values mean the sensor is less susceptible to linear motion interference.

Scale Factor Error

• Think of this as the “multiplier” for a sensor’s output. A perfect scale factor means every reading matches the actual motion. Scale factor errors are deviations from the ideal multiplier, expressed as a percentage, affecting measurement accuracy.

Alignment

• Sensors must be aligned precisely with their intended axes, much like aligning a camera to capture the correct angle. Alignment errors occur when the sensing axis deviates from the physical axis, usually expressed in milliradians (mrad).

Data Rate

• How often the sensor outputs data, like a movie’s frame rate. Measured in Hz or kHz, higher data rates allow capturing fast-changing movements but may require more processing power.

External Sync

• This allows multiple sensors to work together, like musicians following the same conductor. Synchronization ensures consistent timing across sensors, critical in applications requiring precise coordination.

Baud Rate

• The speed at which data is transmitted between the sensor and other devices. Measured in bits per second (bps), higher baud rates mean faster data transfer but may require better communication hardware.

Max Bandwidth

• The range of motion frequencies a sensor can measure, like a speaker handling both bass and treble. Measured in Hz, higher bandwidth allows detecting rapid changes in motion.

Digital Message Delay

• The time it takes for a sensor’s data to be transmitted, akin to the delay in live streaming. Measured in microseconds (μs), minimal delay ensures real-time responsiveness.

Advantages of MEMS Technology

1. Compact Size: MEMS sensors, like those by Gladiator Technologies, achieve high performance in small footprints, ideal for space-constrained applications.
2. High Reliability: MEMS components exhibit excellent durability, withstanding shocks and vibrations.
3. Cost Efficiency: Mass production reduces costs without compromising performance.
4. Low Power Consumption: MEMS sensors are energy-efficient, making them suitable for battery-operated systems.
5. Customization: MEMS technology allows tailoring sensors to specific applications, enhancing adaptability.

Why Gladiator Technologies Stands Out

Gladiator Technologies excels in delivering high-performance MEMS gyroscopes and accelerometers, combining precision engineering with innovative designs. Their sensors, such as the G300D, offer superior ARW and bias stability in ultra-compact sizes. With industry-leading bandwidths, shock tolerance, and temperature stability, Gladiator Technologies provides dependable solutions for demanding environments.

As the official representative of Gladiator Technologies in Israel, Amironic is committed to bringing you the best of MEMS technology. Contact us to learn more about their advanced products and how they can benefit your application. Together, we deliver innovation and excellence to meet your motion sensing needs.