��Labview��ˮ�|(zh��)�O(ji��n)�y̓�M�x��_�l(f��)�c��(y��ng)��

��r�g��2008-08-19 10:50 ��Դ��Ї�Փ��d�� : �� R�� x��1288

        �S��F(xi��n)��Ƽ��Ѹ�Ͱl(f��)չ��ˮ�|(zh��)�O(ji��n)�y��Ҫ��ҲԽ��Խ��,��ˮ�|(zh��)�O(ji��n)�y�x��HҪ�܆Ϊ��y��ĳ��ˮ�|(zh��)��(sh��),��߀ϣ��܉��ͨ�š��F(xi��n)��Ϣ��,��Ķ��Ɍ��yˮ�wϵ�y(t��ng)�ľC�Ϸ��u�r,��̓�M�x��g(sh��)��(g��u)��ˮ�|(zh��)�O(ji��n)�y̓�M�x��ϵ�y(t��ng)��Ǟ��ˌ��F(xi��n)��Ŀ�˶��M�е��о�̽��

1��̓�M�x��Labview��

    ��̓�M�x��ĸ��NI��˾(National Instrument)��20��o80��,��^̓�M�x��Ӌ��C��x��y(t��ng)һ��Ӳ��ƽ�_,��Ӌ��C��\�㡢�惦,��ط�,��{(di��o)�á��@ʾ��ļ��ܻ��,��ͬ�r�т��y(t��ng)�x��Č��I(y��)��ܺ��ؼ�ܛ��,��ʹ֮�cӋ��C�Y(ji��)�Ϙ�(g��u)��һ�_��^��ܶ��ȫ�c��y(t��ng)Ӳ��x��ͬ��ͬ�r�ֳ��Ӌ��C��YԴ��ȫ�x��ϵ�y(t��ng),��c��y(t��ng)�x��,��̓�M�x��S��(y��u)�c��yԇ��̎��Ӌ��ɸ��(f��)�s��̎��ٶȸ��,��yԇ�Y(ji��)��ı��_��ʽ��S��ӣ��Է��ش惦�ͽ��Q�yԇ��(sh��)��(j��),��r��,��g(sh��)��¿졣��c��ǰ��Ƀx��a(ch��n)�S�Ҷ��x�x��ܵķ�ʽ�D(zhu��n)׃?y��u)��Ñ��Լ��x�x��,��M��N��ӵđ�(y��ng)��,��̓�M�x��Ĝyԇ��ܡ��ؼ��F(xi��n)��ܛ��,��κ�ʹ��߶��ͨ�^�޸�̓�M�x��ܛ��׃��Ĺ��ܺ�Ҏ(gu��)ģ,��@��w�F(xi��n)�� ܛ��ǃx��O(sh��)Ӌ˼�롣

    ��̓�M�x��ļ��g(sh��)��A(ch��)��Ӌ��C��g(sh��),��Ӌ��Cܛ��g(sh��),��д��ԵĈD�λ��ܛ��NI��˾�Ƴ��Labview(laboratory virtual instrument engineering workbench��̓�M�x��ƽ�_)��ϵ�һ��ÈD�λ��̼��g(sh��)��x��32λ��g�ͳ��_�l(f��)ϵ�y(t��ng),��Ŀ�˾��Ǻ��_�l(f��)��,��߾��Ч�ʣ�׌�ƌW(xu��)�Һ͹��̼��g(sh��)�ˆT��Ӌ��C��YԴ�͏��,��ٺ��ݵ��Լ��Ĺ��΄�(w��),��Q��ƌW(xu��)��c��̎��Z�ԡ�

    ��Labviewʹ��Ҋ��õĿ�ҕ��g(sh��)��˙C��,��ṩ��S��x��еĿ��ƌ��,��^��o,��_�P(gu��n)��ƽ��D��,��Ñ��ͨ�^ʹ�þ�݋��ƌ��׃?y��u)��m��Լ��I(l��ng)��Ŀ��ƌ��Labview�ṩ�˶�N��Ĺ��ͺ��(sh��)��,��˺ܶ��x��Ӳ��,��Labview֧�ֶ�N��ϵ�y(t��ng)ƽ�_��κ�һ��ƽ�_��_�l(f��)��Labview��(y��ng)�ó��ֱ��ֲ��ƽ�_��,��

2��F(xi��n)ˮ�|(zh��)�O(ji��n)�y��̓�M�x��ϵ�y(t��ng)�Ľ��(y��ng)��

2.1��̓�M�x��ܛ��O(sh��)Ӌ

    ��ܛ��O(sh��)Ӌ�Ƀɲ��ֽM�ɣ�ǰ��̈D,��ǰ��壬ݔ��ݔ��ؼ�(Control)�팍�F(xi��n),��\�еĽY(ji��)��ݔ��ؼ�(Indicator)��,��̈D��ɳ��ܵĈD�λ�Դ��a��ͨ�^��̖��(sh��)��(j��)��ݔ��ݔ��M��ָ��,��Ɍ��̖�ɼ��̎��ܵĿ��,��

    ��Labview5.1�_�l(f��)��ˮ�|(zh��)��W(xu��)�x�әz�yָ�˜y��̓�M�x��ͬ�r��քe��x�ӡ��x��,��x��,��ܽ��ȝ��M�бO(ji��n)�y,��g��4��(sh��)ֵ�@ʾ��ں�4��D��@ʾ��ڣ��քe�@ʾ��(sh��)��(j��),��˜ʴ_�xȡ��(sh��)��(j��),��O(sh��)Ӌ�ɷN�xȡ��ʽ��xȡ,��@ʾ��Ϸ�һ��Θ�,��I�P��ơ�ϵ�y(t��ng)�O(sh��)�òɘ��c��(sh��),��ɘ��l�ʵ�,��

        ͨ��x��o��ʾ��(n��i)��ͨ��c�x��(sh��)ͨ��(y��ng),��ÿ��ͨ��Է�һ�M��O(sh��)�˿ڻ�Ĕ�(sh��)��(j��)�� x��ԭʼ��̖��(sh��)��(j��),��

    ��惦��(sh��)��(j��)���o�c�@ʾ��(y��ng)�� ʾҪ��@ʾ��ϵĔ�(sh��)��(j��)�惦��,��惦��ʽ�Ѓ� �N��惦��ļ��ͨ�^��ӡ�C��ӡ,��惦��(sh��)��(j��)��Զ�N��ʽ�@ʾ��͈D��S��w�D,��ֱ��D��,��

    ��ͨ�^��(sh��)��(j��)��(��o)�܉�?q��)��y��(sh��)��(j��)�M�нy(t��ng)Ӌ��ؚw,��(�{(di��o)�ú��(sh��)��),��ʹ�Î��ˆ�(��o)��Ϥ��˽�x��Ĺ��ܡ��,��˳��o��,��P(gu��n)�]̓�M�x��,��

2.2��̓�M�x��Ӳ��Y(ji��)��(g��u)

    ��̓�M�x��Ӳ��ƽ�_��Ҫ��ڔ�(sh��)��(j��)�ɼ�,��̖��̎��̖ݔ��@ʾ��Ӳ��ڏĂ��ֱ�ӵõ��̖��΢��,��x��Burr Brown��˾��T��ڔ�(sh��)��(j��)�ɼ�,��и߾��ȼ��ɔ_��ľ��ܸ��x�x��Ŵ��̖̎��Ԫ��Ŵ��(sh��)��(j��)�ɼ�ϵ�y(t��ng)��Iotech WaveBook/512 Data Acquisition System,��Ҫ��ָ�˞飺�ɘ��l��,��1 MHz;ͨ��(sh��)��8,��A/D��,��±0.025%��V��,��FIFO��_��,��64 k,��

2.3��(y��ng)�Ì��

    ��_�l(f��)�Ļ��W(xu��)�x�әz�yָ�˺�ˮ�|(zh��)�C�ϙz�yָ�˜y��̓�M�x��g�Ĕ�(sh��)ֵ�@ʾ��ں͈D��@ʾ��ڿ��ͬ�r��x�ӡ��x��,��x�Ӻ��ܽ��ȝ�Ȼ�COD��BOD�M�бO(ji��n)�y,��

    ��ϵ�y(t��ng)�O(sh��)��˲ɘ��c��(sh��)��ɘ��l�ʵ�,��ͨ�^ͨ��x��,��һ��@ʾ��ڷքe�@ʾ��x�ӡ��x��,��x��,��ܽ��COD��BOD��ȵ��O(sh��)�˿ڻ�Ĕ�(sh��)��(j��)�ļ��x��ԭʼ��̖��(sh��)��(j��),��

3��Y(ji��)�Z

    ��̓�M�x��Ӽ��g(sh��)��Ӌ��C��g(sh��)��Y(ji��)�ϵĮa(ch��n)��,��ˮ�|(zh��)�O(ji��n)�y�ĸ�Ч�ʽ�Q��S��Ӌ��C��g(sh��)�Ĳ��l(f��)չ,��̓�M�x��g(sh��)�،��ˮ�|(zh��)�O(ji��n)�y�I(l��ng)��l(f��)�]Խ��Խ��Ҫ��,��