Method and device for detecting uniformity of reflective chemical liquid application
A technology of chemical liquid and detection device, which is applied in measurement devices, optical devices, scientific instruments, etc., can solve problems such as difficulty in ensuring the uniformity of liquid medicine
Active Publication Date: 2016-06-29
邳州市景鹏创业投资有限公司
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Problems solved by technology
Due to the wear of the sponge wiper during application and the high viscosity of some liquid medicines, it is difficult to ensure the uniformity of the liquid medicine application
Therefore, there is an urgent need to develop a device that can automatically detect the uniformity of this viscous self-applying liquid, but there is no such device at present
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[0011] A reflective method for detecting uniformity of chemical liquid application, using grating sheet 1 and CCD2, placing grating sheet 1 close to the bottom of a glass sheet coated with transparent chemical liquid, and applying CCD2 at a certain distance from the normal line of the glass sheet The upper position of the angle shoots the stripes on the grating sheet 1 through the glass sheet and the transparent liquid medicine, and the thickness uniformity of the applied transparent liquid medicine is judged by analyzing the deformation of the photographed stripes. The grating sheet 1 applied by this method should be marked with parallel, consistent width and spacing, and black and white stripes. If the stripes on the image captured by CCD2 are still parallel and the spacing is consistent, it means that the transparent medicine applied on the glass sheet The thickness of the liquid is uniform, if the stripes in the image are obviously deformed, or the parallelism changes, it m...
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The invention discloses a reflection-type chemical liquid applying uniformity detection method and device, and belongs to the field of environmental protection detection method and equipment. The device consists of an optical grating sheet and a CCD. The device is characterized in that the optical grating sheet is closely placed below a glass sheet which is uniformly coated with transparent liquid; the axis of the CCD forms an angle with the normal line of the glass sheet, and is put above the glass sheet, thereby enabling a stripe image of the optical grating sheet to be completely photographed by the CCD, wherein the stripe image of the optical grating sheet passes through the transparent glass sheet and the transparent liquid; and the thickness uniformity of the transparent liquid applied on the glass sheet with the uniform thickness can be determined qualitatively or quantitatively through the observation and analysis of the condition of stripes in the image photographed by the CCD. The method and device achieve the quick detection of the thickness uniformity of the transparent liquid.
Description
technical field [0001] The invention relates to a method and device for detecting the uniformity of a reflective chemical liquid application. Specifically, a grating sheet and a CCD are used to apply a transparent chemical liquid with a relatively high viscosity on a transparent glass sheet with uniform thickness. A method and device for testing uniformity belong to the field of environmental protection testing methods and equipment. Background technique [0002] In environmental protection testing, it is often necessary to carry out chemical testing on the spot, and some glass slides that have been coated with liquid reagents are often used in the testing. The liquid medicines on these glass slides generally need to be applied and dried in the laboratory. At present, the smearing of these liquid medicines is mainly done manually and by equipment. The wipe head of the equipment used is generally a circular sponge block. After the liquid medicine is dropped on the sponge bl...
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IPC IPC(8): G01B11/06G01N21/84
Inventor 雷艳梅张涵于复生
Owner 邳州市景鹏创业投资有限公司