A method and device for starting wind speed calibration based on frequency timing

A technology of calibration device and calibration method, which is applied in the direction of testing/calibration of measuring devices, speed/acceleration/shock measurement equipment, speed/acceleration/shock measurement, etc., which can solve the inconvenience of handling, the refresh delay of impeller wind speed indication value and the volume of the device Large and other problems, to achieve the effect of easy portability, high degree of automation, accurate and reliable calibration data

Active Publication Date: 2022-08-02
山东省气象局大气探测技术保障中心
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Problems solved by technology

In this method, there are disadvantages such as the impeller wind speed display value refresh delay, large device volume, and inconvenient transportation during the calibration process.

Method used

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  • A method and device for starting wind speed calibration based on frequency timing
  • A method and device for starting wind speed calibration based on frequency timing

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Embodiment Construction

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0022] At present, the instrument used to measure wind speed in my country's meteorology is the wind cup type wind speed sensor, which is mainly composed of wind speed measurement sensor, conversion circuit and signal output circuit.

[0023] like figure 1 As shown, the wind speed sensor is composed of three aluminum wind cups 1 (at an angle of 120° to each other), a circular grating device 4 that rotates with the wind cup axis, a U-shaped photosensitive device 5 and a signal output socket. When the wind cup 1 rotates with the circular grating 4, the phototransistor in the U-shaped photosensitive device 5 is turned on and off at times, so that a frequency signal proportional to the rotational speed of the wind cup can be obtained, which is counted by the counter and converted after conversion. Get the actual wind speed value. Since the wind cup rotation rad...

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Abstract

The present invention relates to a calibration method and device, in particular to a method for calibrating starting wind speed based on frequency timing. This method starts from the physical characteristics of the mechanical rotation system of the wind speed sensor and the motion law of the object, and can easily and quickly determine whether the starting wind speed of the wind speed sensor is qualified by comparing the wind cup rotation time of the wind speed sensor to be tested and the wind speed sensor to transmit the value. . The method is simple to operate, has strong practicability, does not require manual intervention in the whole process, improves the calibration accuracy, and ensures the accuracy and reliability of the calibration data. The device is small in size and easy to carry. It can be equipped with a 12V battery and does not need to provide mains power. It can be used indoors or in a mobile measurement and calibration car on site.

Description

technical field [0001] The present invention relates to a calibration method and device, in particular to a method for calibrating starting wind speed based on frequency timing. Background technique [0002] In 2019, the meteorological department of Shandong Province has a total of 123 large supervisor automatic weather stations and 1553 regional automatic weather stations, which are distributed in cities and villages in the province. Limited by the number of meteorological verification personnel and equipment in our province, Shandong Provincial Meteorological Metrological Verification Institute only conducts laboratory verification on wind sensors of 123 automatic weather stations in the province. A large number of regional automatic weather station wind sensors can only be calibrated by city and county meteorological staff. At present, the main device used by my country's meteorological department to calibrate the starting wind speed of the regional automatic weather sta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01P21/02
CPCG01P21/025
Inventor 郭瑞宝黄磊罗淇边文超杨茂水任燕王锡芳孙嫣邱实
Owner 山东省气象局大气探测技术保障中心
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