Optical Rotating Power Measurement Using Temperature Data
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Solution Overview
Problem
Conventional optical rotating power measurements are slow and lack sufficient signal-to-noise (S/N) ratio due to the need for samples to reach a predetermined temperature before measurement, leading to time inefficiencies and reduced precision.
Innovation Solution
An optical rotating power measurement method and apparatus that acquire data during the temperature changing process, using a sample temperature controller to reach a predetermined temperature, and process this data to determine optical rotating power based on a straight line relationship between temperature and optical rotating power, allowing for both speedup and S/N ratio improvement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the sample temperature is stabilized at a predetermined temperature before measurement, then measurement precision is improved, but measurement time increases significantly
Solution Approach 1:
The patent performs preliminary temperature stabilization of the sample before measurement begins. The temperature control unit stabilizes the sample at a predetermined temperature in advance, and only after stabilization is confirmed does the measurement start. This ensures measurement precision is not compromised while making the time consumption transparent and controllable.
Solution Approach 2:
The patent implements a feedback mechanism where the temperature detection unit continuously monitors the sample temperature and provides feedback to the control unit. The control unit compares the detected temperature with the predetermined temperature and adjusts the heating/cooling accordingly, ensuring the sample reaches and maintains the target temperature before measurement begins.
2Productivity
If the measurement is performed during temperature changing process, then measurement speed is improved, but measurement precision deteriorates
Solution Approach 1:
The patent dynamically adjusts the measurement process based on temperature stabilization status. Rather than using a fixed measurement protocol, the system adapts the measurement timing and parameters according to whether the sample has reached thermal equilibrium, allowing optimal balance between speed and precision for each measurement condition.
Solution Approach 2:
The patent changes the temperature parameter from a variable during measurement to a stabilized constant before measurement. By controlling the temperature to be stable at a predetermined value before initiating the optical rotating power measurement, the system eliminates temperature-induced measurement errors while maintaining efficient measurement timing.
3Measurement precision
If the signal detection is performed with low signal levels, then measurement sensitivity is improved, but signal-to-noise ratio deteriorates
Solution Approach 1:
The patent applies beforehand cushioning by stabilizing the temperature environment before measurement begins. This preliminary temperature stabilization creates a controlled and consistent measurement environment that cushions against thermal fluctuations, thereby improving the signal-to-noise ratio without sacrificing the sensitivity needed to detect low-level optical rotating power signals.
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 approach enables faster and more precise optical rotating power measurements by utilizing data from the temperature changing process, reducing noise and eliminating the need to wait for temperature stabilization, thereby improving measurement speed and S/N ratio.
Implementation Method 1
a sample temperature controller for changing a temperature of the sample
Implementation Method 2
Organic materials rotate the plane of polarization of incident linearly polarized light. Therefore, by measuring the optical rotating power thereof, the materials can be identified or optical isomers can be distinguished.
Data Source
AI summary
An optical rotating power measurement method comprising: an optical rotating power data acquisition step of starting measurement of the optical rotating power of the sample in a measurement apparatus during a temperature changing process where a controller controls the temperature of the sample such that the temperature reaches the predetermined temperature and of obtaining temperature data and optical rotating power data of the sample as time passes during the temperature changing process; and a data processing step of obtaining a straight line relationship data between the temperature data and the optical rotating power data, by using the fact that the optical rotating power of the sample is proportional to a measurement temperature; wherein the optical rotating power data of the sample at the predetermined temperature or the temperature dependence data of the optical rotating power of the sample is determined based on the straight line relationship data.