The content of this theme is as follows : without time , without open , without stopping railway transport , and without interrupting traction current of block tested , meanwhile track circuit parameters in electrical and no electrical blocks is measured of on - line , dynamic and real - time . these parameters include voltage of fsk signal , voltage of industrial and harmonic wave interference , upper frequency , lower frequency , carrier frequency and low frequency 18 messages frequency 本课题研究内容:在不要点,不开天窗,不中断行车,不中断被测区段牵引电流的情况下,在线、动态、实时测量电化区段和非电化区段的移频信号电压、工频干扰电压,移频信号(调频信号)的上边频、下边频、载波频率、以及低频18信息频率等参数。
The high specificity of the dot - ppa - elisa was confirmed by specific blocking test and also by cross - reaction test . the diaphragm did not react with the antibodies against salmonellosis , streptococcosis , colibacillosis , chlamydiosis , hcv , ppv , prv , brucellosis . erysipelas , suis and chlamydiosis in cross - reaction test . the diaphragm has good sensitivity and could detect some pasteurella - positive test serum which has been diluted to2 - " 试验证明所建立的dot - ppa - elisa具有较好的特异性,与猪瘟、仔猪副伤寒、猪丹毒、猪细小病毒病、猪伪狂犬、猪布氏杆菌病、猪衣原体病阳性血清无交叉反应。