According to the relationship between fringe contrast of FPI and RI of external medium, the RI change (DRI) of liquid culture during incubation can be obtained and the results of three tests are shown in Fig. 10(a).
According to the relationship between fringe contrast of FPI andRI of external medium, the RI change (DRI) of liquid culture duringincubation can be obtained and the results of three tests are shownin Fig. 10(a).