Cotton moisture tester
A tester, cotton technology, applied in the field of testing, can solve the problems of large size, inconvenient to carry, cumbersome operation process, etc., to achieve the effect of small size, less peripheral circuits, and high degree of intelligence
Inactive Publication Date: 2014-06-04
SHAANXI YATAI ELECTRIC APPLIANCE
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Problems solved by technology
At present, the cotton moisture tester used in our country is basically a resistance tester developed in the early stage. This kind of instrument has the disadvantages of cumbersome operation process, large volume and inconvenient to carry.
Method used
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[0019] Such as figure 1 The cotton moisture tester shown includes a humidity sensor 2 inserted into the cotton to detect cotton moisture, and a signal processing unit connected to the humidity sensor 2 and used to amplify and filter the output signal of the humidity sensor 2 The circuit 3 and the single-chip microcomputer control module 4 connected with the signal processing circuit 3 and the power supply module 1 for supplying power to each power consumption unit of the system, the input terminal of the single-chip microcomputer control module 4 is connected with a keyboard input module for setting system operating parameters 5. The clock circuit module 11 for providing the time reference for the system and the reset circuit module 12 for resetting the system, the output terminal of the single-chip microcomputer control module 4 is connected with the cotton humidity value display module 7 for displaying the cotton humidity value, A memory module 10 for storing the cotton humi...
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The invention discloses a cotton moisture tester. The cotton moisture tester comprises a humidity sensor, a signal processing circuit, a singlechip control module and a power module, wherein the humidity sensor is inserted into cotton and is used for detecting cotton moisture; the signal processing circuit is connected with the humidity sensor and is used for carrying out amplification processing and filtering processing on an output signal of the humidity sensor; the singlechip control module is connected with the signal processing circuit, and the input end of the singlechip control module is connected with a keyboard input module, a clock circuit module and a reset circuit module; the output end of the singlechip control module is connected with a cotton humidity value display module, a memorizer module and a sound-light alarm module for alarming the humidity, the singlechip control module is communicated with an upper computer through a communication interface module, and the humidity sensor is an HM1520 humidity sensor; the singlechip control module adopts a PIC16C74 chip, and the communication interface module is an RSR232 communication interface module. The cotton moisture tester provided by the invention has the advantages that the design of a tester structure is reasonable, the measuring accuracy is high, the stability is good, the use is convenient, and the cotton moisture tester is convenient to popularize and use.
Description
technical field [0001] The invention relates to a test, in particular to a cotton moisture tester. Background technique [0002] The moisture content of cotton is the most important factor affecting the safe storage of cotton. Therefore, cotton moisture detection is an important content of cotton inspection, and it is also one of the important assessment indicators for cotton purchase monitoring. The accuracy and operation speed of measuring cotton moisture directly affect the quality of cotton acquisition and subsequent storage and processing. With the continuous development of science and technology, my country's cotton purchase inspection work is developing in the direction of standardization and instrumentation to ensure the accuracy of moisture inspection. At present, the cotton moisture tester used in our country is basically a resistive measuring instrument developed in the early stage. This type of instrument has the disadvantages of cumbersome operation process, l...
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IPC IPC(8): G01N27/00
Inventor 唐卫军
Owner SHAANXI YATAI ELECTRIC APPLIANCE