| 人体死后经过的时间阻抗自动测量仪 |
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| 引用本文： | 熊小民,郭萍,熊平.人体死后经过的时间阻抗自动测量仪[J].国外电子元器件,2007(10):17-21. |
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| 作者姓名： | 熊小民 郭萍 熊平 |
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| 作者单位： | 1. 南华大学,数理学院,湖南,衡阳,421001
2. 南华大学,医学院,湖南,衡阳,421001 |
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| 摘 要： | 本设计采用恒流源电路、双频交流发生器、交流测量电路、双单片机内部通信以及与微型计算机实时串行通信构成智能型人体电阻抗测定系统,可用于对案发现场的人死后人体电阻随时间的变化和现场的环境温度自动测量,由单片机进行数据实时采集、A/D转换和数据存储,把存储的数据通过RS-232发送给计算机,并对阻抗、频率、测量时间、测量速度、测量温度分类处理和计算,自动拟合出测量曲线.通过分析,最终确定人死后经过的时间(PMI).
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| 关 键 词： | 双频交流发生器 智能型人体电阻抗测定系统 人死后经过的时间 分类处理 |
| 文章编号： | 1006-6977（2007）10-0017-05 |
| 收稿时间： | 2007-06-26 |
Postmortem measure interval resistance meter |
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| XIONG Xiao-min,GUO Ping,XIONG Ping.Postmortem measure interval resistance meter[J].International Electronic Elements,2007(10):17-21. |
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| Authors: | XIONG Xiao-min GUO Ping XIONG Ping |
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| Institution: | 1.School of Mathematics and Physics, Nanhua University,Hengyang 421001,China; 2.School of Medical Science, Nanhua University,Hengyang 421001,China |
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| Abstract: | This design consists of intelligent human body resistance determine system together with constant current source circuit,double frequency alternating current generator,alternating measurent circuit,double single chip computer interior communication and real-time exterior seriral communication.First of all,it is measured automatically various parameter of case place by single chip computer and sensor,then date is collected,ADC is changed and date is storaged by single chip computer,storaged data is transmitted computer by RS232,then computer classify resistance,frequency,measure time,measure speed,measure temperature.Automatically fit measurement curve,through analysis,finally it is determimed to postmortem measure interval(PMI). |
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| Keywords: | double frequency alternating current generator intelligent human body resistance determine system postmortem measure interval(PMI) classifying process |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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