A temperature dependence of a width of $\Delta H=\Delta B$ region has been studied for 5 wt.% (Fe, Ti) particle-doped MgB${}_2$ superconductor, which is the region that increased applied magnetic field is the same as increasing magnetic induction in a superconductor. The result revealed that widths of the region are linear along temperature. In this paper, we present meanings of the result and details of the calculation. In previous report, we represented a theory that a width of $\Delta H=\Delta B$ region is related with upper critical field of the superconductor, which is that pinned fluxes at volume defect are pick-out depinned and move in $\Delta H=\Delta B$ region when the shortest distance between them is the same as that of upper critical field of the superconductor. Thus, we inspected the relationship between a width of the region and upper critical field along temperature theoretically and experimentally. The results show that the two are not only linear along temperature, but also are linear each other. The results support the theory because temperature dependence of a width of $\Delta H=\Delta B$ region is linear to that of upper critical field of the superconductor.

宽度的温度依赖性 $\Delta H=\Delta 乙$ 已研究了5％（重量）（Fe，Ti）颗粒掺杂MgB的区域${}_{\mathrm{2个}}$超导体，这是增加的施加磁场的区域，与增加超导体中的磁感应相同。结果表明，该区域的宽度沿温度呈线性。在本文中，我们介绍了结果的含义和计算的细节。在上一份报告中，我们代表了一个理论，即宽度为$\Delta H=\Delta 乙$ 该区域与超导体的上临界场有关，即在体积缺陷处的固定通量被拾取固定并移动。 $\Delta H=\Delta 乙$当它们之间的最短距离与超导体的上临界场的距离相同时，该区域将出现。因此，我们在理论上和实验上检查了沿温度的区域宽度和上临界场之间的关系。结果表明，两者不仅沿温度呈线性关系，而且彼此呈线性关系。结果支持该理论，因为宽度的温度依赖性$\Delta H=\Delta 乙$ 该区域与超导体的上临界场是线性的。