An Infrared Fibre Optic Gas Detection System

Review Of Fibre Optic Gas Sensors

“…The first fibre-remoted methane detection scheme to be field tested was reported by Stueflotten et al (14), of A/S Elektrik Bureau, Norway. This system had much in common with that described above (and in ref 13), i.e.…”

Applications and Optoelectronic Methods of Detection of Ammonia

“…By comparison of the optical powers in the narrow-band and broadband beams of the light that had and had not passed through the measurement cell, it was possible to calculate the CH 4 concentration. A somewhat similar system based on the use of optical fibres and optical fibre couplers, but with the innovative use of compact LED light sources, was developed by Stueflotten et al (1982). The schematic of the system is shown in Figure 9.…”

“…9. Schematic of the differential fibre-optic detection system (redrawn from a diagram of Stueflotten et al (1982)) Fig. 10.…”

Performance specifications for technology development: Application for characterization of volatile organic compounds in the environment

“…Infrared-absorption-based schemes for detecting alkane vapors have been developed. Stueflotten et al (1984) have developed a detector for the remote monitoring of explosive gases (e.g., CH4) that is based on near-IR (NIR) absorption measurements. The detector comprises three main units: (1) a microcomputer-based signal control and processing unit, (2) a fiber-optic sensor, and (3) an optical fiber cable module.…”