Develop Heat Rate Instrument about the Thermal Resistor of PTC
MU Chang-sheng · Harbin Ligong Daxue xuebao · 2002
Based on PTC Resistance -temperature characteristics, we develop a tachometer on thermal dissipation. In this paper, structure and principle of the tachometer on thermal dissipation are discussed. Experimental result illustrates that the tachometer on thermal dissipation can adjust the liquid velocity. With increasing of the liquid velocity, current in PTC resistance increases exponentially. It has widely application in measuring of liquid.