Non-rotary optical rotation solution gauge and method for measuring specific rotation of optical rotation solution through gauge

Abstract

The invention provides a non-rotary optical rotation solution gauge and a method for measuring the specific rotation of optical rotation solution through the gauge, relates to a method for measuring the optical rotation solution, and solves the problem that the conventional instrument for measuring the optical rotation material requires that an analyzer is continuously rotated when the specific rotation of the solution is measured to confirm the rotating angle of a vibrating surface of the optical rotation solution. The method comprises the following steps: utilizing light beams emitted by a light source element to be incident to a polarizer; enabling linearly polarized light polarized by the polarizer to be incident to a test tube filled with optical rotation solution; enabling the linearly polarized light passing by the test tube filled with optical rotation solution to be incident to a polarization displaying device; enabling the linearly polarized light displayed by the polarization displaying device to be incident to a light sensing surface of an image collecting device; sending image information collected by the image collecting device to a PC; calculating the difference value of the polarization direction of light beams in light beam information obtained after the solution to be measured is measured and the polarization direction of light beams in light beam information obtained through a solution not measured through the PC, so as to obtain the optical rotation theta of the solution to be measured; finally obtaining the specific rotation of the solution to be measured. According to the invention, the gauge and the method can be used for measuring the optical rotation solution.

Description

technical field [0001] The invention relates to a method for measuring an optically active solution. Background technique [0002] After the linearly polarized light passes through the solution of certain substances, the vibration plane of the polarized light will rotate at a certain angle with the direction of light propagation as the axis. This phenomenon is called optical rotation. The angle of rotation is called the optical rotation of the substance. A polarimeter is usually used to measure the optical rotation of a substance. [0003] Optically active substances can be divided into right-handed and left-handed. When viewed from the direction of light, if the vibrating surface rotates clockwise, it is called a right-handed substance; if the vibrating surface rotates counterclockwise, it is called a left-handed substance. [0004] In the existing measurement of optically active substances, on the optical bench, the laser beam emitted by the semiconductor laser, the pol...

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Problems solved by technology

[0007] In order to solve the problem that the existing instruments for measuring optically active substances need to continuously rotate the polarizer to determine the rotation angle of the vibration surface of the optically active solution when measuring the optically active rate of the solution, the present invention proposes a non-rotating optically active solution measuring instrument and adopts the measuring instrument Method for measuring optically active solutions

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