Verification apparatus of dynamic characteristic of speed or acceleration sensor, system and method thereof
A technology of acceleration sensor and dynamic characteristics, which is applied in the testing/calibration of speed/acceleration/shock measurement equipment, speed/acceleration/shock measurement, and measurement devices, etc., and can solve problems affecting calibration accuracy, sensitivity reduction, and poor standardization , to achieve the effect of ensuring practicality and reliability
Active Publication Date: 2013-04-24
ZOOMLION HEAVY IND CO LTD
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Problems solved by technology
During use, the speed or acceleration sensor is inevitably affected by the external environment, use time and other factors, resulting in a decrease in sensitivity, so the speed or acceleration sensor needs to be calibrated
However, in the prior art, although some calibration equipments have been developed, such equipments are complex in structure and poor in standardization, seriously affecting the calibration accuracy
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[0016] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0017] figure 1 It is a flowchart of a method for verifying dynamic characteristics of a speed or acceleration sensor according to an embodiment of the present invention.
[0018] Such as figure 1 As shown, the verification method of the dynamic characteristics of the acceleration sensor includes:
[0019] S102. Simultaneously collect signals from the synchronously moving displacement sensor and the velocity or acceleration sensor to obtain a displacement signal, and a first velocity signal or a first acceleration signal;
[0020] S104, filter the displacement signal and the first velocity signal or the first acceleration signal; and
[0021] S106, convertin...
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The invention discloses a verification apparatus of a dynamic characteristic of a speed or acceleration sensor, a system and a method thereof. The method comprises the following steps: simultaneously carrying out signal acquisition on a displacement sensor and the speed or acceleration sensor which are moves synchronously so as to obtain a displacement signal and a first speed signal or a first acceleration signal; carrying out filtering processing on the displacement signal and the first speed signal or the first acceleration signal; conversing the displacement signal after the filtering processing so as to obtain a comparison signal; analyzing and comparing the comparison signal and the first speed signal or the first acceleration signal after the filtering processing so as to obtain a dynamic characteristic analysis result of the speed or acceleration sensor. Therefore, practicality and reliability of speed or acceleration sensor verification are ensured.
Description
technical field [0001] The invention relates to a verification device, system and method for dynamic characteristics of a speed or acceleration sensor. Background technique [0002] Velocity or acceleration sensors have been widely used in the prior art, wherein the acceleration sensor can usually measure two kinds of acceleration values, the first is static acceleration, and the second is dynamic acceleration. Such acceleration sensors are used in various devices to realize functions such as pedometers and air recognition. During use, the speed or acceleration sensor is inevitably affected by factors such as the external environment and use time, resulting in a decrease in sensitivity, so the speed or acceleration sensor needs to be calibrated. However, in the prior art, although some calibration equipments have been developed, the structures of such equipments are complex and their standardization is poor, which seriously affects the calibration accuracy. Therefore, ther...
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Inventor 黄毅黄露王佳茜杨文
Owner ZOOMLION HEAVY IND CO LTD