Detection method for performance deterioration state of ultrasonic anemometer transducer
A technology of deterioration state and detection method, which is applied in the direction of instrumentation, speed/acceleration/shock measurement, speed/acceleration/shock measurement equipment testing/calibration, etc. It can solve the problems of no detection method, etc., and achieve easy operation and save manpower and material resources , the effect of saving the process
Active Publication Date: 2020-08-14
SENSEED TECH CO LTD
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Problems solved by technology
[0005] As an energy converter, the stability of the ultrasonic transducer is extremely important, so its aging performance needs to be tested regularly. At present, there is no good detection method
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[0028] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.
[0029] It should be noted that when an element is referred to as being “disposed on” another element, it may be directly on the other element or there may also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may a...
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The invention discloses a detection method for the performance deterioration state of an ultrasonic anemoscope transducer. The method comprises the following steps that firstly, pulse parameters of astandard transducer are tested under the condition that the temperature is T, wherein the pulse parameters comprise center frequency, pulse peak value, pulse rising edge time and pulse falling edge time which are respectively expressed by fc, p, t_rise and t_fall; then, pulse parameters of a transducer to be tested are tested under the same temperature condition, wherein the pulse parameters comprise the center frequency, the pulse peak value, the pulse rising edge time and the pulse falling edge time which are respectively expressed by an fc_test, p_test, t_rise_test and t_fall_test; and finally, judgement is made according to the discriminant, if the pulse parameters of the transducer to be tested meet any one of the conditions in the discriminant, the performance of the transducer to betested is judged to be deteriorated, and if the pulse parameters of the transducer to be tested do not meet any one of the conditions in the discriminant, the performance of the transducer to be tested is judged to be good. The detection method for the performance deterioration state of the ultrasonic anemoscope transducer has the advantages of being simple in steps and simple and convenient to operate.
Description
technical field [0001] The invention relates to the field of ultrasonic anemometers, in particular to a method for detecting performance deterioration state of transducers of ultrasonic anemometers. Background technique [0002] Ultrasonic waves will produce many physical, chemical and biological effects when propagating in the medium. At the same time, because ultrasonic waves have strong penetrating power, good directionality, large information carrying capacity, and easy to achieve fast and accurate non-destructive monitoring, they are widely used in industry, agriculture, national defense, It has been widely used in biomedicine and other aspects. [0003] Ultrasonic transducers are energy conversion devices that convert alternating electrical signals into acoustic signals or convert acoustic signals into electrical signals within the ultrasonic frequency range. It is a key device in ultrasonic equipment, and its performance is directly related to the effect and applicat...
Claims
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IPC IPC(8): G01P21/02
CPCG01P21/025
Inventor 陈智王丽
Owner SENSEED TECH CO LTD