Vehicle-mounted photoacoustic sensor for measuring methane
The mobile gas measuring device uses a vibration-damping enclosure and photoacoustic technology to provide accurate methane detection, addressing the expense and vibration issues of existing devices, facilitating cost-effective pipeline monitoring.
WO2025261782A9 Publication Date: 2026-06-18SCHUTZ GMBH MESSTECHN
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- SCHUTZ GMBH MESSTECHN
- Filing Date
- 2025-06-04
- Publication Date
- 2026-06-18
AI Technical Summary
⚠Technical Problem
Existing gas measuring devices for methane detection in accessible terrain are expensive and susceptible to mechanical vibrations, which interfere with accurate measurements.
⚗Method used
A mobile gas measuring device equipped with a photoacoustic-based gas measuring unit housed in a vibration-damping enclosure, using a photoacoustic measuring cell and vibration-damping materials to minimize interference, coupled with a data processing unit and wind sensor for precise methane detection.
🎯Benefits of technology
Enables cost-effective, vibration-resistant methane detection with high sensitivity and accuracy, allowing for vehicle-based above-ground pipeline network monitoring without the need for cables or pipes.
✦ Generated by Eureka AI based on patent content.
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Abstract
The present invention relates to: a mobile gas-measuring device (1) which is designed to measure methane in traversable terrain; and the use thereof. The gas-measuring device comprises a gas-measuring vehicle (20) having a photoacoustics-based gas-measuring unit (2), and the photoacoustics-based gas-measuring unit (2) has a photoacoustic measuring cell (10) which is mounted in a vibration-damping device. The gas-measuring unit (2) has at least one pump (11) which is connected to an inlet line (3) and an outlet line (5). The photoacoustic measuring cell (10) has a sound detector (13) which is designed to detect exclusively an acoustic frequency generated by methane flowing into the photoacoustic measuring cell (10) and excited therein by means of a light emission unit (9). The sound detector (13) is operatively coupled to a data processing device in order to process the detected frequency. The vibration-damping device comprises a housing (6) lined with a vibration damping material (7) and has an encasing material that provides a vibration-damping sheath for the inlet line (3) and the outlet line (5).
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