长线缆传输对冲击波超压信号影响分析及调理电路设计

TP274+.2; 引线测试法是将长线缆与待测装置传感器连接进行冲击波超压测试的主要方法,测试过程中需多次检查线缆状态,导致测试准备时间过长,且待测装置内部通常采用单一恒流源,难以适应多场景下不同长度线缆的测试需求.针对上述问题,设计了一种适用于长线缆传输的调理电路,该电路不仅能够检测传输线缆的通断状态,还可根据现场传输线长度的变化,改变传感器的驱动电流,从而保证信号准确性.测试表明,设计电路能够准确判断电缆线通断状态,并可通过上位机进行可视化显示,在确保信号调理准确性的基础上实现了0～20 mA范围内恒流源可调,有效地提高了仪器在不同环境下的测试效率及通用性....

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Published in测试技术学报 Vol. 38; no. 6; pp. 627 - 641
Main Authors 周浩, 王胤, 毕荣, 何汇成, 穆继亮
Format Journal Article
LanguageChinese
Published 中北大学 电子测试技术国家重点实验室,山西 太原 030051 2024
中北大学 仪器科学与动态测试教育部重点实验室,山西 太原 030051
Subjects
通断检测
恒流源可调
shock wave overpressure test
信号调理
long cable transmission
长线缆传输
on/off detec-tion
adjustable constant current source
冲击波超压测试
signal-conditioning
Online AccessGet full text
ISSN1671-7449
DOI10.3969/j.issn.1671-7449.2024084

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Abstract TP274+.2; 引线测试法是将长线缆与待测装置传感器连接进行冲击波超压测试的主要方法,测试过程中需多次检查线缆状态,导致测试准备时间过长,且待测装置内部通常采用单一恒流源,难以适应多场景下不同长度线缆的测试需求.针对上述问题,设计了一种适用于长线缆传输的调理电路,该电路不仅能够检测传输线缆的通断状态,还可根据现场传输线长度的变化,改变传感器的驱动电流,从而保证信号准确性.测试表明,设计电路能够准确判断电缆线通断状态,并可通过上位机进行可视化显示,在确保信号调理准确性的基础上实现了0～20 mA范围内恒流源可调,有效地提高了仪器在不同环境下的测试效率及通用性.
AbstractList TP274+.2; 引线测试法是将长线缆与待测装置传感器连接进行冲击波超压测试的主要方法,测试过程中需多次检查线缆状态,导致测试准备时间过长,且待测装置内部通常采用单一恒流源,难以适应多场景下不同长度线缆的测试需求.针对上述问题,设计了一种适用于长线缆传输的调理电路,该电路不仅能够检测传输线缆的通断状态,还可根据现场传输线长度的变化,改变传感器的驱动电流,从而保证信号准确性.测试表明,设计电路能够准确判断电缆线通断状态,并可通过上位机进行可视化显示,在确保信号调理准确性的基础上实现了0～20 mA范围内恒流源可调,有效地提高了仪器在不同环境下的测试效率及通用性.
Abstract_FL The lead wire testing method is the main method for conducting shock wave overpressure test-ing by connecting long cables to the sensors of the device under test.During the testing process,the cable status needs to be checked multiple times,resulting in long testing preparation time.Additionally,the device under test usually uses a single constant current source,which makes it difficult to adapt to the test-ing needs of cables of different lengths in multiple scenarios.A conditioning circuit suitable for long-distance cable transmission has been designed to address the above issues.This circuit can not only detect the on/off status of the transmission cable,but also change the driving current of the sensor according to the length of the on-site transmission line,thereby ensuring signal accuracy.Tests have shown that the designed circuit can accurately determine the on/off status of cable lines,and can be visually displayed through the upper computer.Based on ensuring the accuracy of signal conditioning,it realizes the adjust-able constant current source within the range of 0～20 mA,effectively improving the testing efficiency and universality of the instrument in different environments.
Author 毕荣
王胤
穆继亮
何汇成
周浩
AuthorAffiliation 中北大学 电子测试技术国家重点实验室,山西 太原 030051;中北大学 仪器科学与动态测试教育部重点实验室,山西 太原 030051
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Author_FL MU Jiliang
BI Rong
HE Huicheng
ZHOU Hao
WANG Yin
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DocumentTitle_FL Analysis of Impact of Long Cable Transmission on Shock Wave Overpressure Signals and Design of Conditioning Circuits
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Issue 6
Keywords 通断检测
恒流源可调
shock wave overpressure test
信号调理
long cable transmission
长线缆传输
on/off detec-tion
adjustable constant current source
冲击波超压测试
signal-conditioning
Language Chinese
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PublicationTitle 测试技术学报
PublicationTitle_FL Journal of Test and Measurement Technology
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Publisher 中北大学 电子测试技术国家重点实验室,山西 太原 030051
中北大学 仪器科学与动态测试教育部重点实验室,山西 太原 030051
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Snippet TP274+.2; 引线测试法是将长线缆与待测装置传感器连接进行冲击波超压测试的主要方法,测试过程中需多次检查线缆状态,导致测试准备时间过长,且待测装置内部通常采用单一恒流...
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Title 长线缆传输对冲击波超压信号影响分析及调理电路设计
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