Transmission Spectroscopy Light Adjustment for Tablet Inspection
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Solution Overview
Problem
Existing spectroscopic measurement devices face challenges in adjusting light quantity to maintain measurement data within a measurable range when the physical properties of the molded product change, leading to potential out-of-range measurements.
Innovation Solution
The device includes adjustable light source and detection units with actuators to adjust relative distances and diameters, along with a variable optical attenuator and control unit to optimize light quantity based on changing product properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If transmission measurement is performed on molded products with varying physical properties, then inspection capability is maintained, but measurement data may fall outside the measurable range of the light detection unit
Solution Approach 1:
The patent implements dynamic adjustment of the light source unit and light detection unit positions along the optical axis. The light source unit can move in the first direction (toward or away from the article) and the light detection unit can move in the second direction (toward or away from the article). This dynamic positioning allows the system to adapt to varying light transmission characteristics of different molded products, ensuring measurement data remains within the measurable range while maintaining inspection capability across diverse product types.
2Device complexity
If the light source unit and light detection unit positions are fixed, then device structure is simple, but light quantity cannot be adjusted for different molded products
Solution Approach 1:
The patent introduces movable components along the optical axis: the light source unit can translate in the first direction and the light detection unit can translate in the second direction. These dynamic elements allow adjustment of light quantity by changing the relative positions of the units with respect to the article, enabling adaptation to different molded products while adding only minimal structural complexity.
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
This configuration allows for precise adjustment of light quantity to maintain accurate measurement data, ensuring consistent inspection quality across varying product types.
Implementation Method 1
a light source unit configured to emit light from a light source toward an article; and a light detection unit configured to measure a spectral characteristic of transmission light emitted from the light source unit and transmitted through the article with a spectroscope
Data Source
AI summary
A spectroscopic measurement device capable of adjusting a light quantity acquired by a light detection unit to an appropriate light quantity is provided. The spectroscopic measurement device includes: a light source unit configured to emit light from a light source toward a tablet; and the light detection unit configured to measure a spectral characteristic of transmission light emitted from the light source unit and transmitted through the tablet with a spectroscope, in which the light source unit is configured such that a relative distance to the tablet is adjustable based on a control signal input from an outside, and the light detection unit is configured such that a relative distance to the tablet is adjustable based on a control signal input from an outside.