Pyrometer method for measuring slab temperature in a reheat furnace
Patent
·
OSTI ID:6600900
A method and apparatus to measure the temperature of a slab in a reheat furnace with increased accuracy using either a single or dual pyrometer system through use of a multiplicity of temperature correction functions involving temperatures of slab and wall, distance between a pyrometer and the slab at which it is aimed, a ratio of air and fuel supplying the furnace heat and radiation interferences. The functions are chosen by a micro-processor in the system dependent on temperature differentials, emissivity setting of the pyrometer, target distance between pyrometer and slab, and air and fuel flow rates existing and fluctuating in the system.
- Assignee:
- Bethlehem Steel Corp.
- Patent Number(s):
- US 4432657
- OSTI ID:
- 6600900
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320303* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Equipment & Processes
COMPUTERIZED CONTROL SYSTEMS
COMPUTERS
CONTROL
CONTROL SYSTEMS
DESIGN
ELECTRONIC CIRCUITS
FURNACES
HEATING
MEASURING INSTRUMENTS
MICROELECTRONIC CIRCUITS
MICROPROCESSORS
PYROMETERS
SLABS
TEMPERATURE CONTROL
320303* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Equipment & Processes
COMPUTERIZED CONTROL SYSTEMS
COMPUTERS
CONTROL
CONTROL SYSTEMS
DESIGN
ELECTRONIC CIRCUITS
FURNACES
HEATING
MEASURING INSTRUMENTS
MICROELECTRONIC CIRCUITS
MICROPROCESSORS
PYROMETERS
SLABS
TEMPERATURE CONTROL