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专用通信测试仪器的种类及发展
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作者 信文 《邮电商情》 1996年第20期13-13,共1页
随着现代通信技术的发展,通信测试和通信测试仪器已成为发展现代通信的有力手段和工具,对通信技术的发展起着促进和推动的作用。通信测试与测试仪器具有国际性和全程全网统一性的突出特点。测试的仪器大体可分为两类,即:专门用于某种通... 随着现代通信技术的发展,通信测试和通信测试仪器已成为发展现代通信的有力手段和工具,对通信技术的发展起着促进和推动的作用。通信测试与测试仪器具有国际性和全程全网统一性的突出特点。测试的仪器大体可分为两类,即:专门用于某种通信测试的仪器。 展开更多
关键词 测试仪器 专用通信 通信测试 规程分析仪 数字传输 标量网络分析仪 传输测试器 线路测试 载波通信 测试系统
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Design and validation of wireless strain test system for bridge based on the resistance strain sensor
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作者 黄侨 李忠龙 +3 位作者 张连振 沙学军 徐玉滨 王德军 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2010年第1期18-23,共6页
In order to achieve an access to strain sensor data with wireless transmission in bridge engineering structure testing, a wireless strain test system is presented based on the resistance strain sensor of networks. The... In order to achieve an access to strain sensor data with wireless transmission in bridge engineering structure testing, a wireless strain test system is presented based on the resistance strain sensor of networks. The wireless bridge strain test system composed of master station and substation adopts the wireless method to realize the high accuracy data acquisition between the master station and the substation under a reliable communication protocol. The system has been tested in contrast with the present strain apparatus. Results show that the wireless system is high-reliable, and has many characteristics such as high efficiency, good precision, high stability with low cost, and good flexibility, without using the present communication network. 展开更多
关键词 wireless transmission bridge inspection data acquisition resistance strain sensor
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