Device and method for detecting EVA cross linking degree through sound waves

A technology of acoustic wave detection and cross-linking degree, which is applied in the field of devices for detecting EVA cross-linking degree using acoustic waves, and devices for detecting EVA cross-linking degree, which can solve the problem that it is difficult to meet the requirements of industrialized production testing, large equipment investment, and small number of testing samples, etc. problem, to achieve the effect of simple structure, strong applicability and simple detection method

Inactive Publication Date: 2014-05-14
JIANGSU WANYU POWER SCI & TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

DSC is the English abbreviation of differential scanning calorimetry. DSC has high detection accuracy, but relatively large inve

Method used

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  • Device and method for detecting EVA cross linking degree through sound waves
  • Device and method for detecting EVA cross linking degree through sound waves

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Embodiment 1

[0023] A device that utilizes sound waves to detect the cross-linking degree of EVA provided in this embodiment has a structure such as figure 1 Shown, a kind of device that utilizes sound wave to detect EVA cross-linking degree is characterized in that: comprise frequency sweeping signal generator, transduction processor, frequency scanning instrument and computer, transduction processor is made up of receiving type transducer and emitting type Composed of transducers, the output end of the frequency sweep signal generator is connected to the input end of the transmitting transducer, the output end of the receiving transducer is connected to the signal input end of the frequency scanner, and the signal output end of the frequency scanner is connected to the computer. The frequency sweep signal generator is connected to the computer through a frequency sweeper, where the transmitting transducer converts the electrical signal generated by the frequency sweep signal generator int...

Embodiment 2

[0026] The present embodiment provides a kind of method utilizing sound wave to detect the degree of cross-linking of EVA, comprising the following steps:

[0027] (1) There is a back plate on the back of the photovoltaic module, and the back plate of the photovoltaic module is placed on a horizontal plane, and then the transmitting transducer and the receiving transducer are fixed on both ends of the back plate on the back of the photovoltaic module. The emission transducer and the reception transducer are arranged on the same horizontal line and the interval between them is 40-60cm, and the frequency sweep signal generator is arranged on the emission transducer or the reception transducer Connect the signal input end of the frequency scanner to the frequency sweep signal generator and the receiving transducer, and connect the signal output end of the frequency scanner to the computer;

[0028] (2) Turn on the power and turn on the frequency sweep signal generator to generate...

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Abstract

The invention discloses a device and method for detecting the EVA cross linking degree through sound waves. The device comprises a swept signal generator, an energy converting processor, a sweep generator and a computer. The energy converting processor is composed of a receiving type energy converter and a sending type energy converter. The output end of the swept signal generator is connected with the input end of the sending type energy converter, the output end of the receiving type energy converter is connected with the signal input end of the sweep generator, the signal output end of the sweep generator is connected with the computer, the swept signal generator is connected to the computer through the sweep generator, the sending type energy converter converts electric signals generated by the swept signal generator into the sound waves, the sent sound waves are received by the receiving type energy converter and converted into electric signals, and the electric signals of the swept signal generator and the electric signals of the receiving type energy converter are scanned by the sweep generator, converted into waveforms and sent to the computer. The device is simple in structure, short in detection time, economical, environmentally friendly and capable of rapidly judging the EVA cross linking condition through the transmission decay characteristics of the sound waves in EVA materials.

Description

technical field [0001] The invention relates to a device and a method for detecting the cross-linking degree of EVA, in particular to a device and a method for detecting the cross-linking degree of EVA by using sound waves, belonging to the field of photovoltaics. Background technique [0002] With the continuous development of the photovoltaic new energy field, various supporting equipment in the industry are also constantly innovating and updating. In the production of crystalline silicon photovoltaic modules, it is an essential step to detect the degree of cross-linking of components. The degree of cross-linking of EVA is an important indicator of EVA performance, and the detection of the degree of cross-linking of EVA is very important. At present, most domestic solar photovoltaic enterprises use xylene extraction and DSC technology to detect the degree of cross-linking of EVA. DSC is the English abbreviation of differential scanning calorimetry. DSC has high detection ...

Claims

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Application Information

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IPC IPC(8): H02S50/10
CPCY02E10/50
Inventor 赵庆生吴宝安
Owner JIANGSU WANYU POWER SCI & TECH
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