Processing Furnace IR Calibration for Multi-Zone Temperature Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing processing furnaces face challenges in accurately controlling heat absorption by processed components due to the need for precise temperature control in multiple zones, and existing infrared temperature measurement devices require disassembly for calibration, leading to inefficiencies and potential errors.
Innovation Solution
A processing furnace equipped with an infrared temperature measurement device connected to a calibration device featuring a black body module, a heating module, and a cooling module, allowing for in-furnace calibration without disassembly, and a controller for closed-loop temperature control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If infrared temperature measurement devices are used to detect component temperature in multi-zone furnaces, then temperature control precision is improved, but device complexity increases due to calibration requirements
Solution Approach 1:
The calibration device is merged with the temperature measurement device, allowing the black body module to be integrated within the furnace chamber. This integration enables calibration to be performed in-situ without requiring separate external calibration equipment, thereby reducing overall system complexity while maintaining measurement precision.
Solution Approach 2:
The system performs self-calibration through the integrated black body module that can be heated or cooled to known reference temperatures. The infrared measurement device calibrates itself by measuring the black body at these reference temperatures, eliminating the need for external calibration services or complex calibration procedures.
2Measurement precision
If calibration is performed by disassembling the infrared measurement device, then measurement accuracy can be verified, but productivity decreases due to downtime and potential errors
Solution Approach 1:
The black body module is pre-positioned within the furnace chamber in a location that is accessible to the infrared measurement device. This preliminary arrangement allows calibration to be performed quickly by simply activating the heating or cooling of the black body module, without requiring disassembly or complex setup procedures.
Solution Approach 2:
The system allows calibration to be performed continuously or periodically during normal furnace operation without interrupting the production process. The black body module can be calibrated in-situ while the furnace continues to process components, maintaining both measurement accuracy and productivity.
3Adaptability or versatility
If multiple processing zones with different temperature requirements are implemented, then processing versatility is improved, but temperature control difficulty increases
Solution Approach 1:
The furnace chamber is divided into multiple independent processing zones, each with its own temperature control. The black body module can be positioned to serve calibration needs for each zone independently, allowing each zone to be calibrated and controlled separately, which manages complexity while maintaining versatility.
Solution Approach 2:
The black body module serves as a universal calibration reference for all processing zones in the furnace. By providing a single calibration source that can be used across multiple zones, the system reduces the complexity that would otherwise arise from having separate calibration systems for each zone.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables precise temperature control of processed components through direct measurement and calibration within the furnace, improving product yield and reducing calibration-related errors.
Implementation Method 1
an infrared temperature measurement device that is connected to the furnace chamber and configured to have a detection field of view toward the furnace chamber
Implementation Method 2
a black body module having a standard temperature that is connected to the detection field of view of the corresponding infrared temperature measurement device and is capable of providing standard temperature data
Implementation Method 3
the heating module is configured to increase the temperature of the black body module
Implementation Method 4
the cooling module is configured to reduce the temperature of the black body module
Implementation Method 5
the black body module comprises a cooling gas channel with a tortuous shape that is fluidly connected with the cooling module, wherein the cooling module is configured such that cooling gas flows through the cooling gas channel to reduce the temperature of the black body module
Data Source
AI summary
The present application discloses a processing furnace comprising a furnace chamber; at least one infrared temperature measurement device; at least one calibration device comprising a black body module connected to the detection field of view of the corresponding infrared temperature measurement device; a controller; wherein the infrared temperature measurement device is configured to be capable of detecting the temperature of the black body module in the corresponding calibration device and obtaining calibration temperature data, and the controller is configured to calibrate the infrared temperature measurement device according to the standard temperature data and the calibration temperature data.