Method and device for synchronous measurement of temperature and speed
A technology of synchronous measurement and speed, applied in the direction of measurement devices, instruments, etc., can solve problems such as the inability to perform synchronous measurement
Active Publication Date: 2018-06-12
北京飞擎科技有限公司
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Problems solved by technology
However, the current hot-wire anemometer can only measure the speed and temperature separately, and cannot perform simultaneous measurement
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[0018] In order to make the purpose, technical solution and advantages of the present invention clearer, the method and device for synchronous measurement of temperature and speed of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0019] Such as figure 1 Shown is a flow chart of the steps of a temperature and speed synchronous measurement method in an embodiment. Specifically include the following steps:
[0020] Step 101, acquiring a two-dimensional parallel probe, and performing calibration on the two-dimensional parallel probe.
[0021] In this embodiment, calibrating the two-dimensional parallel probes includes: selecting one probe to measure temperature, and selecting another probe to measure velocity; performing a velocity calibration oper...
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The invention relates to a temperature and speed synchronous measurement method and device. A two-dimensional parallel probe is acquired, and the two-dimensional parallel probe is calibrated; a calibration file is compiled so as to generate a two-dimensional calibration file; synchronous measurement of temperature and speed is performed by using the two-dimensional parallel probe so as to generate voltage of measurement temperature and voltage of measurement speed; comparing with a temperature calibration curve included in the calibration file is performed according to the generated voltage of measurement temperature so as to acquire local transient temperature; a speed calibration curve is searched in the calibration file according to the difference value under the corresponding transient temperature condition; and the local instantaneous speed is calculated according to the acquired speed calibration curve and the acquired voltage of measurement speed. According to the method, the corresponding calibration curves of speed and voltage under different temperature conditions can be obtained by using the two-dimensional hot line parallel probe and the speed and temperature measurement system, and temperature and speed can be synchronously measured so that the measurement frequency can be 2000K. The temperature and speed synchronous measurement method and device have accuracy, flexibility and usability of temperature and speed synchronous measurement.
Description
technical field [0001] The invention relates to the technical field of temperature measurement and velocity measurement, in particular to a method and device for synchronous measurement of temperature and velocity. Background technique [0002] As we all know, in the flow of turbulent boundary layer, temperature and velocity are highly coupled, which has always been a difficult topic. To study the turbulent flow in the boundary layer, it is necessary to test the velocity and temperature in the turbulent boundary layer with high frequency, High-precision simultaneous measurement. [0003] At present, the method that can realize the simultaneous measurement of speed and temperature is laser-induced fluorescence technology, but the test frequency of laser-induced fluorescence technology is low, and it needs high-resolution laser and high-precision, high-speed imaging equipment, which is expensive; and this method is due to Laser scattering and other effects have poor measureme...
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IPC IPC(8): G01D21/02
CPCG01D21/02
Inventor 陶智李海旺由儒全
Owner 北京飞擎科技有限公司