Abstract
It is desirable that many kinds of pressure manometers utilized at low temperature are developed, because under high pressure and low temperature it is somewhat troublesome to carry out different kinds of measurements at the same time.
There are two pressure scales available determining pressure at low temperature. The one is the NaCl-pressure scale and the other is the ruby-pressure scale. In the case of the electrical measurements, it is convenient to utilize the pressure dependence of the Tc of the standard materials. In section 2, the Tc(P)-dependence of the Bi (V) phase as a function of pressure determined by the ruby-pressure scale is described. In section 3, experimental setup of some high pressure cell for electrical resistance measurement are described.
