Experimental Study of Measuring System of Effective Leakage Area by AC-pressurization Method

交流加压法有效泄漏面积测量系统的实验研究

• 批准号: 04555141
• 负责人: UTSUMI Yasuo
• 金额: $ 1.22万
• 依托单位: Miyagi National College of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research (B)
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1993
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-04555141/
• 关键词: Effective Leakage Area; Measurement; AC-Pressurization; Ventilation Calculation

(1) Principles and characteristicsThe principle of AC-pressurization method which is different from the conventional method, that is, DC-pressurization method is described. The procedure to calculate the effective leakage area and the characteristics of AC-press method are discussed.(2) Development of measuring systemThe measuring system consists of moving part, pressure measuring part and data analysis part. With the system which provides the sinusoidal movement of piston from motor rotation using mechanical joint equipment can not give satisfactory precision by the experiment. The reasons are, the work precision of the mechanical joint is not enough, the value of displacement are given numerically where the phase lag is measured, and data is collected by analogue chart recorder.(3) Simulation of systemThe changing rate of room volume and the pressure difference between outside and inside are calculated. The phase lag is almost same though the displacement is not in good agreement. Therefore the improvement of the piston movement and data collection is supposed to give better precision of the system.(4) Development of new systemThe system that has an having the precision of 2/1000mm and digital recorder is developed. The system has required the control program, power unit, etc. and has more number of consisting parts.

(1)原理与特点介绍了与传统方法不同的交流加压法，即直流加压法的原理。讨论了有效泄漏面积的计算过程和交流压力法的特点。(2)测量系统的研制测量系统由运动部分、压力测量部分和数据分析部分组成。通过实验证明，采用机械连接装置提供由电机旋转产生活塞正弦运动的系统，不能达到满意的精度。其原因是机械关节的工作精度不够，在测量相位滞后的位置用数值给出位移值，用模拟图表记录仪采集数据。(3)系统仿真计算了室内容积变化率和室内外压差。虽然位移不一致，但相位滞后几乎相同。因此，应改进活塞运动和数据采集，以提高系统的精度。(4)新系统的开发研制了具有2/1000 mm精度和数字记录仪的系统。该系统需要控制程序、电源等，组成部件较多。

项目成果

Yasuo Utsumi, Norio Itoh: "Measurement of Effective Leakage Area by AC-pressurization Method -Principle and Characteristics-" Summaries of Technical Papers of Annual Meeting, Architectural Institute of Japan. (to be published). (1994)

Yasuo Utsumi、Norio Itoh：“交流加压法测量有效泄漏面积-原理与特点-”日本建筑学会年会技术论文摘要。

内海康雄,伊藤憲雄: "交流加圧法による隙間量の測定方法について測定原理と特徴" 日本建築学会大会学術講演梗概集. (1994)

Yasuo Utsumi、Norio Ito：“使用交流加压法的间隙测量方法的测量原理和特点”日本建筑学会会议学术讲座摘要（1994）。

内海康雄,伊藤憲雄: "交流加圧法による隙間量の測定方法について-測定原理と特徴" 日本建築学会大会学術講演梗概集. (1994)

内海康夫、伊藤纪夫：《交流加压法测量间隙量的方法——测量原理和特点》日本建筑学会会议学术讲座摘要（1994年）。