Intelligent testing system for moisture of cotton fiber

An intelligent detection and cotton fiber technology, which is applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of inability to meet intelligent testing requirements, moisture measurement range, accuracy, real-time measurement limitations, etc., to achieve improved Real-time processing performance, improved resolution and accuracy, and better data preprocessing effects

Inactive Publication Date: 2009-07-22
ZHONGBEI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In terms of moisture detection, Chinese patents 93237320.8 "Fiber Moisture Meter", 00209908.X "New Rapid Moisture Meter", 03235285.9 "Capacitive Material Moisture Meter", 200420053196.2 "Trace Moisture Meter", 2419596Y "Intelligent Moisture Tester" Device", 2098685U "Slot Cotton Fiber Moisture Measuring Probe", 2205554Y "Multifunctional RF Capacitive Moisture Meter", 93212522 "Capacitive Material Moisture Meter", 93235926.4 "Wide Temperature and Low Power Consumption Grain Moisture Meter" , 95201164.6 "Split Computer Moisture Meter", 96206503.X "On-line Moisture Meter for Grain", 96246614.X "Multi-point Online Moisture Meter for Grain", etc. Or radio frequency capacitance method has been studied, but the focus is generally on the hardware level, and the range, accuracy, and real-time measurement of moisture measurement are limited, which cannot meet the requirements of intelligent testing

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  • Intelligent testing system for moisture of cotton fiber
  • Intelligent testing system for moisture of cotton fiber
  • Intelligent testing system for moisture of cotton fiber

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Embodiment Construction

[0020] Block diagram of the cotton fiber moisture detection system of the present invention, as figure 1 shown. The signal generator acts on the capacitance sensor, and connects the capacitance, temperature, and Hall linear sensors to the data conditioning circuit module, and then transmits them to the host computer through the data acquisition card.

[0021] 1. Signal generator module:

[0022] When the frequency is 10KHz~20KHz, the instrument responds most sensitively to the change of moisture contained in the fiber, and when the frequency is 10KHz, the reproducibility and stability of the test results of the instrument are the best, so the signal generator with a frequency of 10kHz is selected, in order to ensure The stability of the signal generator ensures the accuracy of the test results. According to the principle of using integrated circuits as much as possible, the high-frequency waveform generator MAX038 produced by MAXIM Company is selected.

[0023] MAX038 is a h...

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Abstract

The invention relates to an intelligent detection system for cotton fiber moisture, which includes a signal generator module, a digital temperature sensor, a capacitive reactance sensor, and a data conditioning circuit module. Connect and act on the capacitive sensor, and at the same time connect the output signals of capacitance, temperature, and the distance between the plates to the input terminal of the data conditioning circuit module, and then receive and input the signal amplified by the data conditioning circuit module into the data acquisition card , the signal after data conditioning is collected by the data acquisition card, and sent to the upper computer, and the upper computer software platform performs data processing, and calculates and displays the moisture content of cotton fiber in real time. The computer is an external host computer, and LABVIEW virtual instrument software is installed at the same time. It improves the accuracy of calculating the moisture content of cotton fiber, and at the same time uses the virtual instrument platform to improve the real-time processing performance, and can further enable the cotton fiber moisture detection to realize remote online control and data sharing.

Description

1. Technical field [0001] The invention belongs to a cotton fiber moisture measuring instrument, in particular to a capacitive-resistance intelligent cotton fiber moisture measuring system based on data fusion and virtual instruments. 2. Background technology [0002] The moisture content of cotton fiber is a key parameter affecting the quality of cotton processing, and it is also an important control reference in the cotton processing quality monitoring system. Cotton moisture determination methods can be divided into two categories: direct method and indirect method. Because the indirect method has the characteristics of rapid and continuous determination, it has been continuously developed over the years and is the mainstream of cotton moisture measuring instruments at home and abroad. Typical cotton moisture indirect measuring instruments include microwave, infrared, CCD (black and white camera), capacitive and resistive. [0003] In the field of cotton testing instrum...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/22G06F19/00
Inventor 牛晋川胡保全姚金杰韩焱
Owner ZHONGBEI UNIV
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