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Rocket parachute flame signal launching height testing method

The technology of a rocket parachute and a test method is applied in the field of testing the launch height of rocket parachute flame signals, which can solve the problems of large venues, difficult implementation, and inaccurate height measurement, and achieve the effects of reducing site requirements, small errors, and accurate measurement

Inactive Publication Date: 2013-08-07
FISHERY MACHINERY & INSTR RES INST CHINESE ACADEMY OF FISHERY SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The actual technical problem to be solved in the present invention is: in the prior art, for the measurement of the emission height of the rocket parachute flame signal, or the horizontal deviation caused by the wind force is not considered, resulting in inaccurate height measurement, or requiring a large site, it is difficult to realize

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  • Rocket parachute flame signal launching height testing method
  • Rocket parachute flame signal launching height testing method
  • Rocket parachute flame signal launching height testing method

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Embodiment Construction

[0023] Below in conjunction with embodiment the present invention is further described.

[0024] The measuring method of the present embodiment adopts instruments including: total station, theodolite, tripod, stopwatch, centering rod frame with single prism, anemometer, walkie-talkie and other equipment combinations.

[0025] Surveying personnel need to be trained to understand the principle of height measurement, master the erection method of total station and theodolite, the observation method of moving target, and cooperate well.

[0026] Prepare a suitable launch pad for the rocket parachute flare. Launching personnel should be familiar with the use of signal flares.

[0027] see figure 2 , Before launching, pay attention to the meteorological conditions of the site. Do a good job of site selection, launch point O, and select observation points A and B at a distance of 300m from point O to establish three-dimensional coordinate axes. OA is the first measurement baselin...

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Abstract

The present invention relates to a rocket parachute flame signal launching height testing method, which is characterized by comprising that: a launching point O is selected, an AO direction is adopted as X axis, a direction horizontally perpendicular to the X axis is adopted as Y axis, and two observation points A and B are arranged, wherein horizontal distances between the point O and the points A and B are M, a range of an angle AOB is 45-135 DEG, and an acute angle included angle formed by a BO direction and the Y axis is defined as theta; the plane AOB is adjusted to achieve a level state; a rocket parachute is launched, lifts, and flashes when achieving a high point C, wherein a point formed by perpendicularity of the high point C and the plane AOB is adopted as a perpendicularity point T, an angle TAC is set as beta, an angle TAO is defined as alpha1, and an angle TBO is defined as alpha2; angle measurement devices are arranged on the points A, B and O to measure angles theta, beta, alpha1, and alpha2; and a launching height value is calculated according to M, theta, beta, alpha1, and alpha2. With the present invention, field area requirements of rocket parachute flame signal launching height measurement are substantially reduced, and measurement operability is improved.

Description

technical field [0001] The invention relates to a method for testing the emission height of a rocket parachute flame signal, and belongs to the technical field of ship lifesaving tools. Background technique [0002] The rocket parachute is an important life-saving tool on the ship. After launching to a certain height in the air, it can hang under the parachute and continue to burn for a certain period of time. It emits a red light with a certain luminous intensity, and lands at a slow speed to release a distress signal. [0003] The product has its relevant design parameter requirements, and relevant experiments need to be carried out to measure the parameters of the launch height, and then combined with the stopwatch to calculate the landing time, landing speed and other parameters. Therefore, the height measurement of the rocket parachute flame signal is the most important thing in the whole test project. [0004] The rocket parachute flame signal is one of the life-savin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C5/00
Inventor 石瑞陈寅杰
Owner FISHERY MACHINERY & INSTR RES INST CHINESE ACADEMY OF FISHERY SCI
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