Multifunctional atmospheric pressure altitude instrument

A technology of atmospheric pressure and altitude, applied in instruments, measuring devices, etc., can solve the problems of single function, low precision, and inability to expand functions, and achieve the effect of good function expansibility, increased measurement temperature, and convenient use.

Inactive Publication Date: 2008-07-09
湖南九天科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of instrument has low precision, poor anti-seismic performance, and is easily affected by the ground, temperature and humidity. It cannot be used in cars and many other intense sports occasions, and more importantly, it cannot expand functions.
For example, the ambient temperature cannot be measured, and the direction cannot be indicated like a compass. Due to the single function, these have brought inconvenience to the user.

Method used

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  • Multifunctional atmospheric pressure altitude instrument
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  • Multifunctional atmospheric pressure altitude instrument

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0016] Embodiment 1: See Figure 1-Figure 2.

[0017] This embodiment integrates four functions into one, and the four functions are: measuring atmospheric pressure, altitude, indicating azimuth, and measuring temperature.

[0018] It can be seen from Fig. 1-Fig. 2 that this embodiment includes a single chip microcomputer 1, an atmospheric pressure signal acquisition and conditioning circuit 2, a magnetic resistance signal acquisition and conditioning circuit 3, a digital temperature sensor 4, an air pressure pointer 5, an azimuth pointer 6, a temperature pointer 7, and a dial 8. Three miniature stepping motors (9-11). Among them, the atmospheric pressure signal acquisition and conditioning circuit 2 is mainly composed of an atmospheric pressure sensor 21 and an operational amplifier 22, the magnetoresistive signal acquisition and conditioning circuit 3 is mainly composed of a magnetoresistive sensor 31 and an operational amplifier 32, and the dial 8 corresponds to the air pres...

Embodiment approach 2

[0023] Embodiment 2: see Figure 3-Figure 4.

[0024] This is an implementation that can measure atmospheric pressure / altitude and indicate azimuth. Compared with implementation 1, it lacks a function of measuring temperature.

[0025] As can be seen from FIG. 3 , compared with FIG. 1 , except for the lack of a micro-stepping motor 11 for driving the temperature pointer, the others are exactly the same as in FIG. 1 .

[0026] It can be seen from Fig. 4 that there is no temperature pointer 7 and no temperature scale on the dial of this embodiment, and the others are the same as Fig. 2 . Therefore, it is the same as Embodiment 1 except that the temperature is not indicated.

[0027] Therefore, the single-chip microcomputer 1 of the present embodiment only drives the micro-stepping motor 9 and the micro-stepping motor 10, and the air pressure pointer 5 and the azimuth pointer 7 are respectively driven by these two motors, and its working principle is the same as that of the first...

Embodiment approach 3

[0028] Embodiment 3: Refer to Fig. 5-Fig. 6 .

[0029] This is an implementation mode that can measure both atmospheric pressure / altitude and ambient temperature. Compared with Embodiment 1, there is one less function of indicating orientation.

[0030] It can be seen from Fig. 5 that compared with Fig. 1, the reluctance signal acquisition and conditioning circuit and the micro-stepping motor driving the azimuth pointer are missing, and the others are exactly the same as Fig. 1.

[0031] It can be seen from Figure 6 that there is no azimuth pointer or azimuth scale on the dial. Others are the same as in Figure 2.

[0032] Therefore, the single-chip microcomputer 1 of the present embodiment only drives the micro-stepping motor 9 and the micro-stepping motor 11, and the air pressure pointer 5 and the temperature pointer 7 are respectively driven by these two motors, and its working principle is the same as that of the first embodiment.

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Abstract

The invention discloses a multifunctional atmospheric pressure and sea-level height meter, which comprises a single chip microcomputer, an atmospheric pressure signal collection and conditioning circuit, a digital temperature sensor, a micro-stepping motor, an atmospheric pressure pointer installed on the rotating shaft of the micro-stepping motor, and an index dial, wherein the atmospheric pressure pointer is driven by the micro-stepping motor to indicate atmospheric pressure and sea-level height, and the index marks of the atmospheric pressure and the sea-level height are provided on the index dial. The invention has good shock resistance and high precision; more importantly, the invention has good function expansibility, can not only measure the atmospheric pressure and the sea-level height, but also can add the functions of temperature measurement and orientation indication, so as to well satisfy the requirements of uses and facilitate the service.

Description

technical field [0001] The invention relates to a multifunctional atmospheric pressure altitude meter capable of simultaneously measuring ambient temperature, atmospheric pressure, altitude and indicating azimuth. Background technique [0002] Traditional atmospheric pressure electronic gauges and electronic altimeters basically use a mechanical bellows mechanism. The pressure of the measured medium passes through the bellows force-sensitive element that can move perpendicular to the flexible surface, so that the free end produces a corresponding elastic deformation displacement. After the driving mechanism is amplified by the lever, the pressure to be measured will be indicated on the instrument panel by the indicating device. This kind of instrument has low precision, poor anti-seismic performance, and is easily affected by the ground, temperature, and humidity. It cannot be used in cars and many other intense sports occasions, and more importantly, it cannot expand functi...

Claims

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Application Information

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IPC IPC(8): G01D21/02
Inventor 彭希南李孝平陈忠诚陈登谢稳
Owner 湖南九天科技股份有限公司
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