Sectioned tubular measurement device and test method for shielding effectiveness of electromagnetic shielding fabric
A technology of shielding effectiveness and electromagnetic shielding, applied in the direction of electromagnetic field characteristics, etc., can solve the difficulty of ensuring the convenience, pertinence and reliability of test results, the difficulty of correctly and reasonably evaluating the shielding performance of electromagnetic shielding fabrics, and the difficulty of flexible adjustment of signal reception and emission distance and other problems, to achieve the effect of accurate and reliable test results, increased extensiveness, and low cost
Inactive Publication Date: 2014-12-10
ZHONGYUAN ENGINEERING COLLEGE
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Problems solved by technology
However, so far, there is no fast, flexible and accurate device for measuring the shielding effectiveness of electromagnetic shielding fabrics, which makes it difficult to correctly and reasonably evaluate the shielding performance of electromagnetic shielding fabrics in actual production, research and sales.
Some existing testing methods are expensive, only for hard materials, not suitable for soft materials such as electromagnetic shielding fabrics, and the test airtightness is poor, the frequency range is small, and the signal reception and transmission distance are difficult to adjust flexibly. Ensure the convenience, pertinence and reliability of test results
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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[0022] Such as Figure 1~7 As shown, a segmented tube-type measuring device for the shielding effectiveness of electromagnetic shielding fabrics is mainly composed of a signal transmitting end and a signal receiving end, both of which are provided with brackets. The signal transmitting end is mainly composed of a signal transmitting tube 1, a transmitting thread 2 and a fabric blocking tube 4; the signal receiving end is composed of a signal receiving tube 20, a receiving thread 19 and a fabric clamping tube 18. Both the signal transmitting tube and the signal receiving tube front end have external threads 28,35, which can be screwed into the internal threads 29,34 in the transmitting threaded button or receiving threaded button.
[0023] The signal transmitting tube 1 and the fabric blocking tube 4 are threadedly connected by the launching thread button 2. The fabric blocking tube 4 is hollow 8 and has a blocking ring 6 inside. The fabric blocking tube 4 has an external threa...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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A sectioned tubular measurement device for shielding effectiveness of electromagnetic shielding fabric is mainly composed of a signal emitting end and a signal receiving end, both the signal emitting end and a signal receiving end are provided with supports, the signal emitting end is main formed by sequentially connecting a signal emitting tube, an emitting screw thread and a fabric stopping tube, and the signal receiving end is composed of a signal receiving tube, a receiving screw thread and a fabric clamping tube. A signal emitting antenna is arranged on the bottom face of the signal emitting tube, and a signal receiver is arranged on the bottom face of the signal receiving tube. The sectioned tubular measurement device is excellent in performance and accurate in test result, meets the required standard of a shielding effectiveness test, and provides reference for development, evaluation and detection of the electromagnetic shielding fabric. An adopted method is simple and convenient to operate and suitable for multiple repeated evaluation tests of the electromagnetic shielding fabric, can fill the blank in the field of shielding effectiveness tests of the electromagnetic shielding fabric, provides basis for evaluation, development and research of the electromagnetic shielding fabric, and fastens developing steps of the electromagnetic shielding fabric.
Description
technical field [0001] The invention belongs to the intercrossing technical fields of textile and clothing science and electromagnetics, and relates to a testing device and method for the shielding effectiveness of electromagnetic shielding fabrics. Background technique [0002] Electromagnetic shielding fabrics, also known as anti-electromagnetic radiation fabrics, can be used to make flexible shields of various shapes, anti-electromagnetic radiation clothing, and substrates of shielding composite materials. It has a wide range of applications in health protection and other fields. Therefore, electromagnetic shielding fabrics are getting more and more attention, and its related technologies are developing rapidly. [0003] Shielding effectiveness is a key indicator for evaluating electromagnetic shielding fabrics. However, so far, there is no fast, flexible and accurate device for measuring the shielding effectiveness of electromagnetic shielding fabrics, which makes it d...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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IPC IPC(8): G01R29/08
Inventor 刘哲荣幸张永恒郑倩雪孙瑞丽陈玉娜汪秀琛
Owner ZHONGYUAN ENGINEERING COLLEGE
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