Flow measuring device

The present invention provides a flow rate measurement device capable of reliably correcting a measurement error caused by the temperature of a fluid to be measured. A vortex generating body (32) is inserted into a flow path (31) in a measuring tube (30), a Karman vortex is generated on the downstream side of the vortex generating body (32), and a temperature sensor (36) is arranged at the rear stage of a piezoelectric element (35) which detects the change of the vortex as the change of an electric signal. The fluid flow rate is corrected on the basis of the relationship between the vortex frequency at the fluid temperature measured by the temperature sensor (36) and the vortex frequency of the fluid at the reference temperature. 本发明提供一种流量测量装置，其能够可靠地对由被测量流体的温度引起的测量误差进行修正。在测量管(30)内的流路(31)中插入涡旋产生体(32)，在涡旋产生体(32)的下游侧产生卡门涡旋，在将涡旋的变化作为电信号的变化进行检测的压电元件(35)的后级配置温度传感器(36)，基于由温度传感器(36)测量出的流体温度下的涡旋频率与基准温度下的流体的涡旋频率的关系来修正流体流量。