WAVELENGTH MATTERS BLOG
Single-Wavelength Mode FAQ
Ratio and Multi-Wavelength Williamson Pyrometers offer a single-wavelength (SWL) mode of operation.The following notes pertain to commonly asked questions associated with this function. SWL mode can be used to compare readings to single-wavelength models and as a...
Williamson Hot Slug Detector (HSD) for Fiberglass Batting
Hot Slug Detector: Hot slugs form when a process upset causes molten glass to fall from the spinner and into the product during the manufacturing of fiberglass batting. Surrounded by insulating material, these hot slugs remain hot, and days later can cause the paper...
How to Ensure Valid Measurement Conditions Using ESP Filtering
Williamson Two-Color (TC), Dual-Wavelength (DW) and Multi-Wavelength (MW) pyrometers include a series of advanced signal conditioning functions collectively known as ESP Filtering. This advanced signal conditioning feature allows these Williamson pyrometers to...
Dual-Wavelength Measured Parameters: How Each Works and When to Use It
Williamson Dual-Wavelength Output Descriptions and Functionality: The Williamson Dual-Wavelength (DW) pyrometer includes a series of output parameters that can be used to confirm the proper operation and accuracy of the sensor. These outputs can be viewed as a display...
How to Select a Focal Distance
When the field-of-view (FOV) is filled by a uniformly-heated target, all Williamson pyrometers are distance-independent (beyond 6 inches for traditional style models) because they are fixed-focus. Pyrometers with an adjustable focus, as offered by others, are accurate...
Application Note: Aluminum Hot Rolling Mill – Coiler
This is part 4 of the 4-part Aluminum Hot Rolling Mill application note series - we hope you enjoyed the complete series! Previous parts can be found in our blog feed.Application Overview:The temperature at the coiler is an important process parameter. If the...
Application Note: Aluminum Hot Rolling Mill – Finishing Mill
This is part 3 of the 4-part Aluminum Hot Rolling Mill application note series - be sure to check out the rest of the series! Application Overview: Tight control of finishing temperature assures the desired mechanical properties and a blemish-free surface. The low and...
Application Note: Aluminum Hot Rolling Mill – Roughing/Reversing Mill
This is part 2 of the 4-part Aluminum Hot Rolling Mill application note series - be sure to check out the rest of the series! Application Overview: At the reversing mill, rolling speed, roll bite and coolant flow may be optimized only with a precise real-time...
Application Note: Aluminum Hot Rolling Mill – Ingot Measurement
This is part 1 of a 4-part application note that covers the Aluminum Hot Rolling Mill - stay tuned for more posts.Application Overview:Before heading to the rolling stands, a large ingot of aluminum is heated in a furnace for hours to days. Ingots need to be heated...
The 3 Most Common SRU Temperature Measurement Issues and How to Solve Them
When natural gas and crude oil is extracted from the ground it contains some percentage of sulfur. Gas or oil with a high level of sulfur is said to be sour. Gas or oil with a low level of sulfur is said to be sweet. This sulfur is removed from the gas stream by a...