초록 ▼

A temperature measuring arrangement employs a semiconductor element whose internal resistance depends on the temperature and the current direction and which is driven by an a.c. signal from an a.c. signal source. A measuring device determines the difference in semiconductor element conductivity depe

A temperature measuring arrangement employs a semiconductor element whose internal resistance depends on the temperature and the current direction and which is driven by an a.c. signal from an a.c. signal source. A measuring device determines the difference in semiconductor element conductivity depending on the polarity of the applied a.c. signal to provide an indication of the temperature being measured.

대표청구항 ▼

A circuit arrangement for measuring temperature comprising: a semiconductor element whose conductivity is temperature-dependent, said semiconductor element including a planar electrode and, on the opposite side, a substantially point-shaped electrode and having a threshold temperature above which it

A circuit arrangement for measuring temperature comprising: a semiconductor element whose conductivity is temperature-dependent, said semiconductor element including a planar electrode and, on the opposite side, a substantially point-shaped electrode and having a threshold temperature above which its conductivity depends on the current direction, means for coupling an AC signal source to the electrodes of the semiconductor element, and a measuring device connected in circuit with the semiconductor element so as to determine the difference in semiconductor conductivity, and consequently the temperature of the semiconductor element, depending on the direction of current flow of the applied AC signal.