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测量气体和流体速度的传统方法是采用毕脱管或热线风速仪,其做法是在被测速度场中放置一个传感器,然后将它感受到的与速度有关的信号送到二次仪表进行处理,得到速度的信息.然而,在流场中放置一个物体,其本身就意味着要干扰流场,从而影响测量精度,而且这些方法在测量狭小流场如?
The traditional method of measuring gas and fluid velocities is to use a flare tube or hot wire anemometer by placing a sensor in the measured velocity field and sending the sensed velocity related signal to the secondary instrument for processing, However, placing an object in the flow field itself means interfering with the flow field, thereby affecting the accuracy of the measurement, and these methods can be used to measure small flow fields, such as?