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Improved explosion-proof thermal imaging system

A thermal imaging and imaging technology, which is applied to the components of TV systems, image communication, and color TV components, etc., can solve the problems of limiting the efficiency of infrared cameras and limiting infrared energy

Active Publication Date: 2020-01-21
ROSEMOUNT INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This may limit the infrared energy
Therefore, explosion-proof requirements for infrared cameras may limit the efficiency of infrared cameras

Method used

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  • Improved explosion-proof thermal imaging system
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  • Improved explosion-proof thermal imaging system

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Embodiment Construction

[0009] When using an infrared camera in a hazardous environment, as mentioned above, the camera is usually located within an explosion-proof enclosure. Infrared technology requires optical windows made of special materials that risk being damaged if subjected to physical shock. Therefore, in order to reduce the chance of the window being subjected to such an impact, a mesh guard or other physical structure is used to protect the infrared window of the housing from the impact. While this mesh guard is beneficial for reducing or eliminating shocks, it may also affect the operation of the infrared camera. For example, mesh guards may potentially block part of the camera's field of view and / or attenuate infrared images. Additionally, the infrared window itself can become dirty over time or in response to certain events or damage. This can lead to degradation of the measurement.

[0010] Embodiments of the present invention generally arrange the reference temperature sensor and ...

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Abstract

An explosion-proof thermal imaging system is provided. The system includes an explosion proof enclosure having a window configured to allow passage of heat radiation. An infrared camera is located within the explosion proof enclosure and is arranged to receive and image thermal radiation passing through the window. An emission target is disposed within the field of view of the infrared camera, but on the opposite side of the window from the infrared camera. A temperature sensor is operatively connected to the infrared camera and configured to provide an indication of the temperature in the vicinity of the emission target.

Description

Background technique [0001] Infrared cameras generally use infrared radiation to form images in a manner similar to how standard cameras use visible light to form images. However, infrared cameras generally operate with longer wavelength illumination, such as 14,000 nanometers. Infrared cameras play an important role in a variety of applications to provide a non-contact indication of the presence of hot objects in the image field. Additionally, in some scenarios, the infrared camera can be calibrated such that an indication of surface temperature can be obtained directly from the images provided by the infrared camera. [0002] One environment where infrared cameras are especially useful is process control and monitoring. In this environment, process fluids such as petrochemicals, slurries, pharmaceutical compounds, etc., can be processed and delivered to various locations in the process processing facility. However, the process control and monitoring environment presents a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/225H04N5/33
CPCH04N23/50H04N23/51H04N23/23G01J5/044G01J5/048G01J2005/0077G01J5/802G01J5/064G01J5/53H04N23/555H04N5/33
Inventor 杰森·H·路德安德鲁·J·凯茨曼萨沙·尤里希·凯恩茨
Owner ROSEMOUNT INC