Optical sensors for process control and emissions monitoring in industry

Technical Report · Fri Jan 01 00:00:00 EST 1999

DOI:https://doi.org/10.2172/751039· OSTI ID:751039

Alendorf, S W; Ottensen, D K; Hahn, D W; Kulp, T J; Goers, U B

Sandia National Laboratories has a number of ongoing projects developing optical sensors for industrial environments. Laser-based sensors can be attractive for relatively harsh environments where extractive sampling is difficult, inaccurate, or impractical. Tools developed primarily for laboratory research can often be adapted for the real world and applied to problems far from their original uses. Spectroscopic techniques, appropriately selected, have the potential to impact the bottom line of a number of industries and industrial processes. In this paper the authors discuss three such applications: a laser-based instrument for process control in steelmaking, a laser-induced breakdown method for hazardous metal detection in process streams, and a laser-based imaging sensor for evaluating surface cleanliness. Each has the potential to provide critical, process-related information in a real-time, continuous manner. These sensor techniques encompass process control applications and emissions monitoring for pollution prevention. They also span the range from a field-tested pre-commercial prototype to laboratory instrumentation. Finally, these sensors employ a wide range of sophistication in both the laser source and associated analytical spectroscopy. In the ultimate applications, however, many attributes of the sensors are in common, such as the need for robust operation and hardening for harsh industrial environments.

• Research Organization: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Sandia National Lab. (SNL-CA), Livermore, CA (United States)
• Sponsoring Organization: US Department of Energy (US)
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 751039
• Report Number(s): SAND99-8424; TRN: AH200019%%17
• Resource Relation: Other Information: PBD: 1 Jan 1999
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
ON-LINE MEASUREMENT SYSTEMS
LASER SPECTROSCOPY
METAL INDUSTRY
STEELS
PROCESS CONTROL
HAZARDOUS MATERIALS
DETECTION
SURFACE CLEANING
MONITORING
POLLUTION CONTROL
TUNABLE DIODE LASER
SPECTROSCOPY
LASER SPARK SPECTROSCOPY
PERIODICALY-POLED LITHIUM NIOBATE
STEELMAKING
INCINERATION
CONTINUOUS EMISSIONS MONITORS