Infrasound Monitoring Station

Infrasound Monitoring Station Product Overview

Infrasound Monitoring Station is an unattended, integrated infrasound monitoring station that detects and provides early warnings for debris flows by capturing infrasound signals originating from their source areas.Infrasound Monitoring Station is a specialized device developed in-house for monitoring geological hazards (such as landslides and debris flows) or seismic activity, providing early warnings by capturing infrasound signals. The product is characterized by a high sampling rate, low power consumption, and exceptional stability and reliability. It is primarily designed to measure various parameters of infrasound waves, including raw sound pressure, effective sound pressure, frequency, and raw waveform data. Equipped with a high-performance 32-bit embedded microprocessor, the sensor features robust signal processing, storage, analysis, and compensation capabilities, alongside high resistance to interference, ultra-low power consumption, and a high level of system integration. It is well-suited for capturing and detecting infrasound signals associated with debris flows and internal fractures within rock or soil masses, enabling the issuance of early warnings for impending disasters.

Infrasound Monitoring Station Monitoring System Architecture

Infrasound Monitoring Station primarily consists of a capacitive infrasound sensor, a solar power supply system, a core monitoring unit, a communication system, and a mounting pole/stand.

Infrasound Monitoring Station Product Features

Compact and Portable: The infrasound sensor features a compact design, making it easy to transport and install—ideal for use in confined spaces or mobile monitoring applications.

Rugged and Durable: Housed in a stainless steel casing with excellent corrosion resistance, the sensor ensures stable, long-term operation in harsh environments, thereby reducing maintenance costs.

High-Precision Measurement: Equipped with a high-sensitivity sensor, preamplifier, and data acquisition module—complemented by DSP (Digital Signal Processing) technology—the unit delivers superior performance, enabling accurate noise level measurement with a dynamic range of up to 110 dB.

Automatic Triggering: Users can configure specific sound pressure thresholds and frequency ranges; once the collected data exceeds the set threshold, the device can automatically output the captured data.

Infrasound Monitoring Station Technical Specifications:

Dynamic Range: 0–100 Pa (no range switching required)

Sensitivity: 50 mV/Pa

Frequency Response: 1 Hz–20 Hz (-3 dB)

Noise: <16 dB

Sampling Rate: 128 Hz

Power Consumption: <28 mA @ 12 V supply

Mean Time Between Failures (MTBF): ≥30,000 hours

Supply Voltage: 5–24 V DC

Hardware Interface: RS485

Communication Protocol: See the attached communication protocol document

Sensor Dimensions: Φ24.5 × 115 mm

Sensor Material: 316L stainless steel

Sensor Weight: 115 g

Operating Temperature: -40°C to +85°C

Operating Humidity: <99% (non-condensing)

Ingress Protection (IP) Rating: IP65