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.
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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
Description
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Application Information
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