In aerospace, precision scientific research, and high-end industrial applications, acceleration measurement is far more than data collection — it is the foundation of safety, reliability, and mission success.
The ER-QA-03A high-performance quartz accelerometer is engineered to aerospace standards, combining exceptional precision, long-term stability, and outstanding environmental adaptability. Designed for inertial navigation, guidance systems, and dynamic testing, it delivers reliable performance even in the most demanding operating conditions.
At the core of the ER-QA-03A is a premium quartz crystal sensing element. Utilizing advanced piezoelectric technology and a precision flexible structure, the sensor achieves ultra-high resolution down to 5μg with a measurement range of ±50g, enabling highly accurate detection of both weak static and dynamic acceleration signals.
Key performance advantages include:
• Bias as low as ±3mg
• Bias repeatability up to 10μg
• Scale factor repeatability ≤15ppm
• Excellent nonlinearity and temperature drift control
These characteristics significantly reduce long-term operational error and provide a dependable reference for high-precision navigation, guidance, and scientific testing systems.
Built for harsh environments, the ER-QA-03A demonstrates remarkable structural durability and stability. Its specially designed flexible architecture can withstand:
• 6g wideband vibration
• 100g / 5ms half-sine shock loads
This allows the sensor to perform reliably during launch operations, high-dynamic maneuvers, and intense vibration conditions.
The accelerometer operates across a wide temperature range from -40℃ to +80℃, with storage capability from -60℃ to +120℃. Excellent temperature coefficients for both bias and scale factor ensure stable signal performance under high temperature, high pressure, and high vibration environments, enabling dependable all-weather and all-scenario operation.
Beyond aerospace and defense, the ER-QA-03A supports a broad range of applications, including:
• Automotive testing
• Medical monitoring equipment
• Earthquake and crustal movement observation
• Microgravity experiments
• Advanced scientific and cosmological research
Its compact dimensions (Φ25.4 × 37.7 mm) and lightweight design (≤80g) make it ideal for integrated systems where space and weight are critical considerations. Multiple configuration options also allow customers to balance accuracy requirements and system costs efficiently.
From ground-based testing platforms to deep-space exploration missions, the ER-QA-03A serves as the “invisible heart” of high-end measurement systems — delivering aerospace-grade precision, stability, and confidence for every critical mission.