Helicopter weighing measurer and helicopter gravity core measuring method

A technology for helicopters and measuring instruments, which is applied in weighing, measuring devices, and testing of machine/structural components, etc., can solve the problems of low measurement accuracy and low efficiency, and achieve the goal of improving measurement accuracy, improving efficiency, and reducing manual labor. Effect

Inactive Publication Date: 2013-09-04
TALY AVIATION TECH SHENZHEN
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The object of the present invention is to propose a helicopter weighing measuri

Method used

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  • Helicopter weighing measurer and helicopter gravity core measuring method
  • Helicopter weighing measurer and helicopter gravity core measuring method
  • Helicopter weighing measurer and helicopter gravity core measuring method

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Embodiment 1

[0034] Such as Figure 1 to Figure 3 As shown, the helicopter weighing measuring instrument includes a casing and four spoke pressure sensors 5 located in the casing. It should be noted that the spoke pressure sensor 5 of this embodiment is a known technology, such as the spoke sensor disclosed in Chinese Utility Model Patent Application No. 200820030228.5. The spoke pressure sensor is a functional conversion device that converts non-electricity (pressure) into electric quantity (current). The principle of the resistance strain type spoke pressure sensor: the elastic body (elastic element, sensitive beam) is elastically deformed under the action of external force, so that the resistance strain gauge (conversion element) pasted on its surface is also deformed, and the resistance strain gauge is deformed. Afterwards, its resistance value will change (increase or decrease), and then the resistance change will be converted into an electrical signal (voltage or current) by the cor...

Embodiment 2

[0053] Such as Figure 4 and Figure 5 As shown, the difference between the present embodiment and the first embodiment lies in the different shell structures. Specifically, the housing of this embodiment is composed of a cover plate 6 , a bottom plate 7 and an annular surrounding wall 8 , and an accommodating cavity for accommodating the spoke pressure sensor 5 is formed. The cover plate 6 and the bottom plate 7 are in the shape of a flat plate, and the top surface of the cover plate 6 extends upwards with a projection 61 for fitting with the supporting point groove of the fuselage of the helicopter. Generally, the projection 61 is round. shape. A group of electrical connection terminals is provided on the annular surrounding wall 8 .

[0054] The pressure-bearing column of the spoke pressure sensor 5 is attached to the bottom surface of the cover plate 6, the bottom of the spoke pressure sensor 5 is fixed on the base plate 7, the output terminal of the current amplifier, ...

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Abstract

The invention relates to a helicopter weighing measurer and a helicopter gravity core measuring method. The helicopter weighing measurer comprises a shell and four spoke press-type sensors which are arranged in the shell, wherein a bearing column of each spoke press-type sensor is used for sensing the deformation of the stressed shell, the four spoke press-type sensors are connected with one another in parallel to form a force sensing assembly; the input end of the force sensing assembly is connected with a voltage stabilizing circuit, and the output end of the force sensing assembly is connected with a current amplifier; and an output impedance adjusting resistor is bridged between a first signal output end and a second signal output end of each spoke press-type sensor, and the first signal output end and the second signal output end of each spoke press-type sensor are respectively connected with an isolation resistor. The four spoke press-type sensors are connected in parallel, so that the measuring precision is improved.

Description

[0001] technical field [0002] The invention relates to a weighing measuring device for a helicopter and a method for measuring the center of gravity of the helicopter. [0003] Background technique [0004] At present, most of the helicopter manufacturers, overhaul factories and military departments in China still use the method of mechanical scales and manual calculation to obtain the weight and center of gravity of the helicopter. This method is backward, time-consuming and labor-intensive, and the test accuracy is greatly affected by human factors and difficult to guarantee. Especially in the airport support work, this method takes up a lot of personnel and takes a long time to measure, but the accuracy cannot be guaranteed. [0005] Contents of the invention [0006] The object of the present invention is to propose a weighing measuring device for a helicopter, which can solve the problems of low measurement accuracy and low efficiency. [0007] In order to achie...

Claims

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Application Information

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IPC IPC(8): G01G19/07G01M1/12
Inventor 侯祖伟顾鹏飞王东锋宋晓军张毅易彦
Owner TALY AVIATION TECH SHENZHEN
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