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Method for compensating for temperature measurement error in a sond.

A technology of temperature measurement and radiosonde, which is applied to the parts of thermometers, thermometers, measuring devices, etc., can solve the problems that radiation errors cannot be completely eliminated, and the size and absorption coefficient cannot be reduced, so as to achieve accurate radiation error correction, The effect of reducing the error

Inactive Publication Date: 2010-06-02
VAISALA
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  • Abstract
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Problems solved by technology

However, radiation errors cannot be completely eliminated using these methods, since neither the size nor the absorption coefficient can be reduced to infinitely small

Method used

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  • Method for compensating for temperature measurement error in a sond.
  • Method for compensating for temperature measurement error in a sond.

Examples

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Embodiment Construction

[0022] exist figure 1 In , a radiosonde 1 is attached to a balloon by a tether 3 . The movement of the radiosonde 1 is formed by a vertical movement h and a horizontal movement s2 , as well as a pendulum movement which causes the radiosonde 1 to swing at the end of the rope 3 . The reference s1 designates the trajectory of the radiosonde 1 without wobble, and the reference s1 ′ designates the trajectory of the radiosonde 1 with wobble.

[0023] The ventilation produced by the movement of the radiosonde 1 will be explained in more detail below.

[0024] The balloon and radiosonde combination is driven by air currents to fly horizontally. Because in the upper atmosphere (stratosphere) wind vortices (ie, local variations in wind speed or direction) are small, the balloon 2 and radiosonde 1 rapidly accelerate horizontally to the speed of the wind current, and thus the wind-induced thrust ceases. In the area of ​​steady wind, the combination of balloon 2 and radiosonde 1 follows...

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Abstract

The invention relates to a method for correcting a radiation error in atmospheric temperature measurement, particularly when using a radiosonde (1), a rocket, or a dropsonde, in which method at least one temperature measurement sensor is used in each measuring device. According to the invention, the state of motion of the sonde (1) relative to the ambient air is measured essentially simultaneously with the temperature measurement, and the result of the measurement result is used to correct the error of the temperature measurement.

Description

technical field [0001] The invention relates to a method for compensating temperature measurement errors of radiosondes according to the preamble of claim 1 . Background technique [0002] A radiosonde is a weather observing device attached to a balloon that typically measures atmospheric temperature, pressure and humidity, as well as wind, at various altitudes. [0003] Currently, only rate of rise is used as a ventilation factor. Horizontal velocity is also of interest, however, especially when detecting with a single radiosonde. Traditionally, it has not been understood that the horizontal velocity of a radiosonde is meaningful, or that the horizontal velocity relative to the air can be determined. [0004] The most important source of error in atmospheric temperature measurement is the radiation error of the temperature sensor. This error increases in particular as the air density around the radiosonde decreases as a result of the ascent of the radiosonde. A temperat...

Claims

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Application Information

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IPC IPC(8): G01K1/20G01W1/08G01K13/024
CPCG01K1/20G01W1/08G01K1/26
Inventor H·-K·冯巴夫J·斯托尔-佩利南
Owner VAISALA
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