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
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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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