Rotatable Arm Spectroscopic Measurement Device for Adjustable Light Emission
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Solution Overview
Problem
Conventional spectroscopic measurement devices lack the ability to easily adjust light emission angles, particularly when used outdoors or in field settings, such as when measuring plants, and often result in elongation of the optical path, reducing measurement efficiency.
Innovation Solution
A spectroscopic measurement device with a rotatable arm member that connects the light source housing and spectrometer housing, allowing for adjustable light emission angles while minimizing the optical path length, and incorporating light shielding bodies to manage external light effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the light source and spectrometer are positioned at fixed locations, then the device structure is simple, but the light emission angle cannot be adjusted to desired values
Solution Approach 1:
The arm member is designed to be rotatable, allowing the light source housing to change its angular position relative to the measurement target. This dynamic structure enables adjustment of the light emission angle while maintaining a compact overall device form, resolving the contradiction between adaptability and device complexity.
2Adaptability or versatility
If the arm member is rotated to change light emission angle, then the light emission angle can be adjusted, but the optical path length elongates
Solution Approach 1:
The rotation axis of the arm member is positioned to intersect the optical axis of the measurement light at a specific angle. This geometric arrangement allows angular adjustment in one dimension while constraining the optical path length change, effectively decoupling angle adjustment from path length elongation.
3Length of stationary object
If the first housing is made slidable to shorten optical path, then the optical path can be reduced, but the device complexity increases
Solution Approach 1:
The first housing is designed with sliding capability along the arm member's extending direction, allowing dynamic adjustment of the light source position. This enables optical path length optimization without requiring complex reconfiguration mechanisms, as the sliding action is integrated into the existing arm structure.
Data Source
AI summary
A spectroscopic measurement device emits light to a measurement target and measures the measurement light output from the measurement target in accordance with the light emission. A spectroscopic measurement device includes: a first housing having a light shielding property and configured to house a light source that emits light and having a first opening through which the light emitted from the light source passes; a second housing having a light shielding property and having a second opening through which the measurement light passes and configured to house a spectrometer that receives the measurement light that has passed through the second opening; and an arm member configured to relatively rotatably join the first housing and the second housing. A proximal end side of the arm member is rotatably joined with the second housing. The first housing is attached to a distal end side of the arm member.