ASC QF-1211 Low-frequency seismic vibration sensor
High-sensitivity capacitive accelerometer for seismic, structural health and vibration monitoring applications
Key features
- Capacitive low-frequency seismic sensor
- Measurement ranges: ±1 g, ±2 g, ±5 g, ±10 g
- Bandwidth: 0 Hz (DC) to 200 Hz
- Noise density: 7 µg/√Hz (typical)
- Excellent bias and scale factor stability
- Shock resistance up to 5,000 g
- Rugged aluminium housing, IP67
- Operating temperature: −40 °C to +85 °C
- Custom cable lengths and connectors available
Performance
The ASC QF-1211 is a high-sensitivity, low-frequency seismic accelerometer based on capacitive MEMS technology. With a bandwidth from DC to 200 Hz and selectable measurement ranges from ±1 g to ±10 g, the sensor is designed for applications requiring precise low-frequency vibration and motion detection.
Thanks to its very low noise density of 7 µg/√Hz and excellent long-term bias stability, the QF-1211 is ideal for seismic monitoring, structural health monitoring, and low-frequency vibration analysis.
Usage conditions
The sensor is housed in a rugged anodized aluminium enclosure with IP67 protection, offering reliable performance in harsh environments. It operates between −40 °C and +85 °C, with shock resistance up to 5,000 g. Power supply ranges from 6 to 36 VDC, with low current consumption.
Applications
- Seismic and earthquake monitoring
- Structural health monitoring of bridges and buildings
- Low-frequency vibration analysis in civil engineering
- Condition monitoring of critical infrastructure
Advantages
The ASC QF-1211 provides high resolution, excellent stability and robust environmental protection, making it the perfect choice for engineers working in seismic monitoring, SHM, and low-frequency vibration measurement.
Do you need this sensor for your next project?
Request a no-obligation quote or send us your contact details for a free, no-obligation consultation. Our sales engineers will then contact you within a maximum of 1 to 2 working days.
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Not exactly what you are looking for? We offer standard sensors, but can also help you with sensors adapted for you or a fully customised measurement solution. Contact us for advice or pricing.
Talk to an expertTechnical Specifications
Specification | Value |
---|---|
Measurement ranges | ±1 g, ±2 g, ±5 g, ±10 g |
Bandwidth (−3 dB) | 0 Hz … 200 Hz |
Noise density | 7 µg/√Hz (typical) |
Bias stability | Excellent long-term stability |
Shock resistance | 5,000 g |
Supply voltage | 6–36 VDC |
Operating temperature | −40 °C … +85 °C |
Housing material | Anodized aluminium |
Protection class | IP67 |
Weight | ~100 g (without cable) |
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