Engineering summary
SIS-1 Infrasound Sensor: Cutting-Edge Infrasound Detection for Civil and Military Applications: engineering guidance from QuakeLogic covering infrasound...
The SIS-1 Infrasound Sensor, developed in collaboration with CEA, is a high-performance, low-power sensor designed for a wide range of civil and military applications. This portable sensor provides exceptional infrasound detection capabilities, enabling rapid deployment for diverse monitoring needs.
Key Features and Applications
1. Civil and Military Security Solutions
The SIS-1 sensor is versatile in detecting infrasound events across a broad range of applications.
- Military Applications: Nuclear explosions, missile launches, and drone detection are among the sensor’s critical uses, enhancing defense and security.
- Civil Applications: SIS-1 also plays a vital role in natural disaster monitoring, including earthquake and tsunami detection, weather-related phenomena like tornadoes and avalanches, and emerging environmental emissions tracking, such as those from wind farms.
2. Exceptional Detection Range
This sensor is designed to detect infrasound events from frequencies as low as 1 Hz, making it a premier solution in the infrasound sensor market. The SIS-1 supports chainable deployment for extensive coverage and offers easy installation and maintenance, making it ideal for both temporary and permanent installations.
3. Innovative System Composition
The portable SIS-1 system includes:
- Infrasound Sensor: Core to detecting and monitoring infrasound events.
- Digitizer and Data Transmission: Ensures accurate data capture and real-time transmission.
- Power Supply and GPS: Self-contained for autonomous deployment and location tracking.
- Optional Components: Wind noise reduction systems (WNRS) and a weather station enhance accuracy in varied environmental conditions, maintaining the sensor’s reliability.
Advanced Metrology and Testing Standards
Seismo Wave’s metrology standards underscore the sensor’s quality:
- Dynamic Infrasound Generator: Calibrates and tests the sensor’s infrasound response.
- Metrology Room: Offers precise control over temperature, ground vibration, and meteorological conditions, ensuring accuracy.
- Active Vibration Isolation Tables: Assure minimal interference, critical for accurate low-frequency measurements.
Technical Specifications
The SIS-1 sensor features impressive self-noise characteristics and maintains amplitude and phase accuracy, essential for detecting even the faintest infrasound signals. These specifications make it a top choice for applications requiring precision and reliability.
Whether used for civil applications like earthquake detection or military applications for blast and drone detection, the SIS-1 infrasound sensor stands out for its flexibility, chainable configuration, and adaptability to both routine and high-stakes monitoring scenarios. The SIS-1 is a complete, portable solution for organizations that prioritize early event detection and broad monitoring coverage.
Additional Offerings
At QuakeLogic, we go beyond providing just the SIS-1 infrasound sensor. We also offer:
- Analog Dataloggers: For accurate and reliable data collection from infrasound sensors.
- Real-Time Monitoring Software – PulsePro: To enable continuous monitoring and immediate analysis of infrasound data, ensuring quick responses to any detected anomalies.
Special Introductory Offer
We are offering the SIS-1 at a special introductory price, exclusively for our valued customers. We firmly believe that the SIS-1 is poised to meet and surpass your sound detection needs. Take advantage of this limited-time offer and secure your Infrasound Sensor SIS-1 today. Click QuakeLogic infrasound sensors for the product page.
About QuakeLogic
QuakeLogic is a leading provider of advanced seismic monitoring solutions, offering a range of products and services designed to enhance the accuracy and efficiency of seismic data acquisition and analysis. Our innovative technologies and expert support help organizations worldwide to better understand and mitigate the impacts of seismic events.
Email: sales@quakelogic.net
Phone: +1-916-899-0391
WhatsApp: +1-650-353-8627
Website: www.quakelogic.net
For more information about our products and services, please visit our website at https://quakelogic.net or contact our sales team. We are here to help you with all your seismic monitoring needs.
Thank you for considering our latest product. The SIS-1 infrasound sensor, along with our comprehensive range of analog dataloggers and real-time monitoring software, is designed to provide you with the precision, speed, and reliability required for advanced sound detection. We stand ready to answer any queries or assist you in any way we can.
Last reviewed: 2026-07-04
Executive Summary
Infrasound monitoring measures low-frequency acoustic energy below the common audible range and is used for environmental, industrial, defense, and research applications. This article has been expanded as an engineering resource for readers evaluating infrasound monitoring concepts, instrumentation choices, and monitoring workflows. The discussion is educational and should be paired with project-specific review by qualified engineers, applicable codes, owner requirements, and equipment documentation.
Key Takeaways
- Define the engineering objective before selecting sensors, test equipment, trigger thresholds, or reporting workflows.
- Use calibrated instrumentation, documented installation practices, time synchronization, and traceable data handling where measurement quality matters.
- Interpret measured data in context: site conditions, structure type, noise environment, sampling rate, bandwidth, and boundary conditions all affect conclusions.
- Use authoritative references and project-specific criteria rather than relying on generic thresholds or unsupported performance claims.
Technical Explanation
In practical infrasound monitoring work, the engineering system is more than a sensor or a test platform. A credible workflow includes the measurement objective, instrument selection, mounting or boundary conditions, sampling and timing strategy, data validation, event or response detection, engineering review, and reporting. Weakness in any part of that chain can reduce confidence in the final interpretation.
For monitoring applications, engineers should document sensor orientation, coupling, environmental exposure, dynamic range, frequency bandwidth, data logger configuration, clock synchronization, communications, and maintenance procedures. For testing applications, engineers should document input motion, fixture design, payload properties, control limits, safety interlocks, acceptance criteria, and post-test data review.
Engineering Applications
| Application | Engineering Question | Typical Evidence Needed |
|---|---|---|
| Research and education | How does a structure, component, or sensor respond under controlled conditions? | Test plan, calibrated data, input motion, boundary conditions, and repeatable observations. |
| Critical infrastructure | Is the asset response normal, changing, or potentially unsafe after an event? | Baseline data, event records, thresholds, inspection workflow, and engineering sign-off. |
| Industrial facilities | Can monitoring support operational continuity and response decisions? | Site-specific criteria, reliable telemetry, alarm logic, maintenance records, and documented procedures. |
People Also Ask
What should be specified before buying equipment?
Specify the measurement objective, frequency range, amplitude range, environment, data format, timing needs, installation constraints, reporting requirements, and applicable standards or owner criteria.
Why do references and standards matter?
They provide terminology, acceptance criteria, test methods, and documentation expectations. They do not replace engineering judgment, but they reduce ambiguity and make results easier to review.
How should data quality be checked?
Review calibration status, timing, clipping, sensor orientation, signal-to-noise ratio, environmental artifacts, data completeness, and whether the record supports the engineering decision being made.
Related QuakeLogic Resources
- Infrasound Active Noise Cancellation
- The Silent Disruptor: Managing AI Data Center Noise
- Tired of Low-Frequency Noise Harassment? QuakeLogic Has the Solution
- Unlocking the Secrets of Volcanoes with Infrasound Monitoring
- Related QuakeLogic products and technologies
- QuakeLogic Engineering Blog topic resources
References
Recommended Diagram or Download
Media placeholder: Add an original diagram showing the measurement chain from sensor or test platform to data acquisition, analysis, engineering interpretation, and reporting. Where this article becomes a buyer guide or application note, create a downloadable PDF version after engineering review.
Discuss a Monitoring or Testing Application
QuakeLogic supports seismic monitoring, earthquake early warning, structural health monitoring, infrasound monitoring, vibration monitoring, data acquisition, and shake table testing applications. For project-specific guidance, contact QuakeLogic with the asset type, measurement objective, site constraints, and required deliverables.
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Topic cluster
Related engineering knowledge areas
- Structural Health MonitoringMonitoring for bridges, buildings, dams, tunnels, industrial facilities, and resilient infrastructure.
- Earthquake Early WarningOn-site detection, alerting workflows, seismic switches, and critical infrastructure warning systems.
- Infrasound MonitoringLow-frequency acoustic sensing for environmental noise, blast, UAV, volcano, and defense applications.
- Shake TablesUniaxial, biaxial, vertical, geotechnical, and multi-axis shake table testing systems.
Definitions and references
Terms, standards, and source cues
- SHM: related to Structural Health Monitoring in this QuakeLogic knowledge cluster.
- damage detection: related to Structural Health Monitoring in this QuakeLogic knowledge cluster.
- earthquake early warning: related to Earthquake Early Warning in this QuakeLogic knowledge cluster.
- seismic switch: related to Earthquake Early Warning in this QuakeLogic knowledge cluster.
- infrasound sensors: related to Infrasound Monitoring in this QuakeLogic knowledge cluster.
- low-frequency noise: related to Infrasound Monitoring in this QuakeLogic knowledge cluster.
- shake tables: related to Shake Tables in this QuakeLogic knowledge cluster.
- AC156: related to Shake Tables in this QuakeLogic knowledge cluster.
Standards mentioned
- ISO documentation only when supported by source material
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