6.16 Experimental results of the on-board Maglev equipment Ë 195Fig. 6.56:Measurement results for the single on-board
HTS Maglev equipment over a single-NdFeB PMG on
December 2, 2000 [54].Tab. 6.12:Levitation forces of the best single on-board HTS Maglev
equipment on December 2, 2000 [54].
Gap (mm) Forces (N) Gap (mm) Forces (N)
60 44.9 8 1591.5
50 122.5 9 1422.1
40 265.1 10 1277.6
30 506.3 11 1152.2
25 685.2 12 1031.6
20 913.0 13 928.3
15 1202.0 14 830.7
14 1267.1 15 746.4
13 1341.7 20 421.1
12 1409.7 25 216.2
11 1484.3 30 87.0
10 1561.8 35 3.8
9 1638.4 40 −46.8
8 1723.6 50 −96.6
7 1823.1 60 −105.2the levitation force measuring results for each of the eight on-board HTS Maglev
equipments over the PMG, and Tab. 6.13 gives the levitation forces of each on-board
Maglev equipment at levitation gaps of 8, 10, and 15 mm, respectively [26]. It shows
that the levitation force of the No. 2 Maglev equipment was the largest. Its levitation
forces were 1418, 1354, and 1127 N at 8, 10, and 15 mm, respectively. The smallest
levitation force was different for different levitation gaps. The levitation forces of the
No. 4 were the smallest at 10- and 15-mm gaps, 1166 and 964 N, respectively. However,
as far as the levitation forces for the 8-mm gap were concerned, that of No. 3 was the
smallest of 1249 N. A reason for this variation is perhaps that the YBCO bulks were
produced in different batches.
Figure 6.59 shows that the levitation forces for each of the eight on-board Maglev
equipments above the PMG differed slightly [22]. For example, the levitation forces
of Maglev equipment No. 7 were 1493 and 1227 N for levitation gaps of 10 and 15 mm,
respectively. The levitation forces of Maglev equipment No. 3 were 1091 and 902 N for