HEAT THERMAL FLOWMETER, HEAT THERMAL FLOWMETER CORRECTION SYSTEM, HEAT THERMAL FLOWMETER CORRECTION PROGRAM, AND HEAT THERMAL FLOW RATE MEASUREMENT METHOD

摘要

PROBLEM TO BE SOLVED: To provide a heat thermal flowmeter with which it is possible to measure a flow rate with high accuracy even when measurement object liquid has a temperature gradient, and a heat thermal flowmeter correction system, a heat thermal flowmeter correction program and a heat thermal flow rate measurement method.SOLUTION: A heat thermal flowmeter comprises: a plurality of thermocouples 11 arranged in measurement object liquid 17 with mutually different water depths; a heater 12 for heating the thermocouples 11 and inserted into the measurement object liquid 17; a detection unit 13 for detecting a temperature of the measurement object liquid 17 due to heating at each water depth and connected to the thermocouples 11; and a flow rate calculation unit 14 for substituting a plurality of measured temperatures for a flow rate expressed by a multivariable function of a temperature or a temperature change and specifying a flow rate.SELECTED DRAWING: Figure 1