Multi-zone Non-contact Thermometer with Segmented Detector
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Solution Overview
Problem
Non-contact temperature measurement devices often require multiple devices or adjustable optics to accommodate varying measurement distances and object sizes, which increases cost and fragility, and are not suitable for applications with discrete variations.
Innovation Solution
A multizone non-contact spot measurement device with two or more fixed detectors and an optical system that provides different optical profiles for each detector, allowing simultaneous temperature measurement of multiple zones at various distances without the need for multiple devices or movable parts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple devices or adjustable optics are used to accommodate varying measurement distances and object sizes, then measurement versatility is improved, but device cost and complexity increase
Solution Approach 1:
The single detector is divided into multiple detector regions, each with different optical profiles (close focus and standard focus). This segmentation allows the device to measure different zones at different distances simultaneously using one detector, eliminating the need for multiple devices or adjustable optics while maintaining measurement versatility.
Solution Approach 2:
The patent introduces a spatial dimension by positioning multiple detector regions at different locations within the same detector substrate. Each region receives infrared radiation from different measurement zones through the optical system, enabling simultaneous multi-distance measurement capability without adding mechanical complexity.
2Adaptability or versatility
If adjustable optics are used to focus the scene image at multiple distances, then measurement adaptability is improved, but device cost increases
Solution Approach 1:
Instead of using adjustable optics, the patent segments the detector into multiple fixed regions with different optical profiles. This approach provides adaptability across multiple distances without the cost of adjustable optical mechanisms, as each detector region is permanently configured for specific measurement zones.
Solution Approach 2:
A single detector substrate serves multiple functions by containing different detector regions with different optical profiles. This multi-functional design eliminates the need for separate devices or adjustable optics, reducing manufacturing cost while maintaining the ability to measure at various distances.
3Adaptability or versatility
If moveable detectors are used to change the device's optical profile, then adaptability is improved, but reliability decreases due to increased fragility
Solution Approach 1:
Instead of making the detector moveable to change optical profiles, the patent inverts the approach by making the optical profiles fixed through different detector region configurations. This eliminates moving parts and improves reliability while maintaining adaptability through the multi-region detector design.
Solution Approach 2:
The detector is segmented into multiple fixed regions with different optical profiles, eliminating the need for moveable components. This segmentation approach provides optical profile adaptability through a static, reliable structure that is less susceptible to breaking.
4Device complexity
If a single detector is used for all measurement zones, then device simplicity is improved, but measurement precision decreases for specific zones
Solution Approach 1:
The single detector is segmented into multiple detector regions, each optimized for specific measurement zones. This segmentation allows each region to provide precise temperature measurements for its designated zone while maintaining overall device simplicity, as all regions are integrated into one detector substrate.
Solution Approach 2:
Different detector regions are designed with different optical profiles tailored to their specific measurement zones. This local quality approach ensures that each region provides optimal measurement precision for its designated zone while the overall device remains simple through the unified detector structure.
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
The device eliminates the need for multiple devices and reduces fragility by providing a single, durable unit capable of measuring multiple zones at different distances and object sizes, enhancing accuracy and reducing costs.
Implementation Method 1
an infrared detector for receiving infrared radiation emanating from a measurement spot or zone on an object of measurement
Implementation Method 2
the optical system is designed so that only infrared radiation from a measurement spot or zone within the target scene or object of measurement is focused onto the detector
Data Source
AI summary
A non-contact measurement device includes two or more detectors for sensing scene data from corresponding measurement zones within a target scene. Devices further include an optical system for imaging scene data from the target scene onto the detectors. The optical system is configured to provide a different optical profile for each detector, such that the device can be used to provide a best-fit optical profile for a variety of non-contact applications.