A kind of tealeaves colorimetric detection instrument
Technical field
The utility model relates to a kind of tealeaves checkout equipment, relates in particular to a kind of instrumentation that is used for the tealeaves colorimetric detection.
Background technology
Along with the development of Tea Processing scale and the people increase in demand to high-quality tealeaves, tealeaves expects that from former the quality that is machined to dried tea more and more is subjected to people and pays close attention to.The colourity of tealeaves and brightness play a part very crucial in judging tea leaf quality as the important indicator that reflects tea leaf quality.The traditional mensuration tealeaves colourity and the method for brightness are the color and lusters by eye-observation tealeaves, the newly picked and processed tea leaves color and luster is generally all more pure and fresh pleasing, light green or blackish green, if tea color is sent out withered, shade or send out brown, show that the tealeaves endoplasm has oxidation in various degree, the old often tea of this tea.Traditional method causes error easily owing to be subjected to artificial factor, can not reflect quality of tea leaves objectively, has certain limitation.In the Tea Processing process, different fresh leafs should be taked different processing technologys, traditional diamond-making technique all is to control each technology by each one experience, cause error easily, cause each procedure of processing tea leaf quality uneven, be unfavorable for keeping the stability of dried tea quality, and adopt chemical method analysis process parameter to carry out synchronously with processing.
The utility model content
The utility model is at the deficiencies in the prior art, provide a kind of simple in structure, can overcome the naked eyes error in judgement, and can conveniently tell the tealeaves colourity tester of the colourity of tealeaves.
The utility model is achieved through the following technical solutions:
A kind of tealeaves colorimetric detection instrument, include casing, tealeaves to be checked is placed in the casing, is respectively equipped with light source and the optical lens that is used to send white light above described tealeaves to be checked, and the rear end of optical lens is provided with the color sensor that is used for white light signal is converted to analog electrical signal; The analog electrical signal of color sensor output is connected with treatment circuit with the signals collecting that is used for that analog electrical signal is converted to digital signal and handle.
A kind of tealeaves colorimetric detection instrument is provided with the container that is used to place tealeaves to be checked in the described casing, the container top is provided with fixed mount in casing, and described light source, optical lens, color sensor and signals collecting and treatment circuit are installed on the fixed mount.
A kind of tealeaves colorimetric detection instrument, described light source is with respect to the container lean setting.
A kind of tealeaves colorimetric detection instrument, described optical lens are vertically set on the container top.
A kind of tealeaves colorimetric detection instrument, described color sensor is positioned at the top of the rear port of optical lens, and keeps at a distance with the rear port of optical lens.
A kind of tealeaves colorimetric detection instrument, the described casing outside is provided with display screen; The signal input part of display screen is connected with the signal output part of signals collecting and treatment circuit.
A kind of tealeaves colorimetric detection instrument, described signals collecting and treatment circuit are high speed FPGA signals collecting and treatment circuit.
The utility model special-purpose container of the tealeaves sample can being packed into, light source is radiated at the surface of tealeaves sample, optical lens will converge to the photosensitive surface of high sensitivity color sensor by diffusing of reflecting to form of tealeaves specimen surface, with the light signal that utilizes diffuse reflection to form.The analog electrical signal that high speed FPGA signals collecting and treatment circuit will be formed by the opto-electronic conversion of color sensor is handled, and the tealeaves colourity and the brightness value of treatment conversion gained can show by display screen.Even like this at tealeaves in the frying process, also can be at any time with the sampling of the tealeaves in the frying and place container, container is placed in the tealeaves colourity tester,, just can be detected frying tealeaves and whether satisfy our quality requirements by detecting frying tealeaves brightness and colourity.The utility model is simple in structure, can overcome the naked eyes error in judgement, and can conveniently tell quality of tea leaves and grade, for people in the production and processing of tealeaves with choose the tealeaves colourity tester that facilitates in the process of tealeaves.
Description of drawings
Fig. 1 looks the vertical profile structural representation for a casing left side.
Fig. 2 looks the appearance structure synoptic diagram for the casing master.
Embodiment
Shown in accompanying drawing 1,2.
The device of tealeaves colourity tester comprises container 1, light source 2, optical lens 3, fixed mount 4, signals collecting and treatment circuit 5, color sensor 6, casing 7 and display screen 8.
Container 1 is arranged at the bottom centre position of casing 7, fixed mount 4 horizontal fixed are arranged in the casing 7, and in the suitable distance of the bottom of casing 7 maintenance, light source 2 is fixedly set in the oblique upper of container 1 by fixed mount 4, optical lens 3, color sensor 6 and signals collecting and treatment circuit 5 are fixed on the fixed mount 4 from down to up successively, optical lens be positioned at container 1 directly over and with vertical setting of surface level of container, the front port of optical lens 3 is right against the upper surface of container 1; Color sensor 6 is positioned at the top of the rear port of optical lens 3, and keeps suitable distance with the rear port of optical lens 3; Signals collecting and treatment circuit 5 are positioned at sensor 6 tops, and link together by circuit with color sensor; Display screen 8 is arranged on the outside surface of casing 7, is connected by the signal output part of circuit with high speed FPGA signals collecting and treatment circuit 5.
During test, with the tealeaves sample special-purpose container 1 of packing into, light source 2 is radiated at the surface of tealeaves sample, optical lens 3 will converge to the photosensitive surface of high sensitivity color sensor 6 by diffusing of reflecting to form of tealeaves specimen surface, with the light signal that farthest utilizes diffuse reflection to form.The electric signal that high speed FPGA signals collecting and treatment circuit 5 will form through the opto-electronic conversion of color sensor 6 is handled, and the tealeaves colourity of treatment conversion gained and brightness value can show by display screen 8.Tealeaves at any time with the tealeaves in frying sampling and place container, is placed container in the tealeaves colourity tester in the frying process, by detecting frying tealeaves brightness and colourity, just can detect frying tealeaves and whether satisfy our quality requirements.