Anti-magnetic levitation gas flowmeter with embedded photoelectric detection unit
A gas flowmeter and photoelectric detection technology, which is applied in the direction of measuring flow/mass flow, measuring device, liquid/fluid solid measurement, etc., can solve the problems of insufficient detection accuracy, insufficient resolution of gas flowmeter, and inability to detect small flow, etc. , to achieve the effect of reducing friction loss
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Embodiment 1
[0023] Such as figure 1As shown, an anti-magnetic levitation gas flowmeter with embedded photoelectric detection unit is an air flow meter based on the anti-magnetic levitation mechanism, including a housing 9 and a cover plate 1, the cover plate 1 is arranged on the upper part of the housing 9, and an anti-magnetic levitation system and a photoelectric contrast sensor unit, the anti-magnetic levitation system includes a lifting permanent magnet 2, an upper pyrolytic graphite plate 4, a magnet rotor 5 and a lower pyrolytic graphite plate 6 from top to bottom, and the lifting permanent magnet 2 Located under the cover plate 1, the lifting permanent magnet 2 is a cylinder with a diameter of 15mm and a thickness of 10mm, and is a N35 NdFeB magnet. The upper pyrolytic graphite plate 4 and the lower pyrolytic graphite plate 6 are cylindrical structures with a diameter of 22 mm and a thickness of 2 mm, and the upper pyrolytic graphite plate 4 and the lower pyrolytic graphite plate 6...
Embodiment 2
[0027] Such as figure 1 As shown, an anti-magnetic levitation gas flowmeter with embedded photoelectric detection unit is an air flow meter based on the anti-magnetic levitation mechanism, including a housing 9 and a cover plate 1, the cover plate 1 is arranged on the upper part of the housing 9, and an anti-magnetic levitation system and a photoelectric contrast sensor unit, the anti-magnetic levitation system includes a lifting permanent magnet 2, an upper pyrolytic graphite plate 4, a magnet rotor 5 and a lower pyrolytic graphite plate 6 from top to bottom, and the lifting permanent magnet 2 It is located under the cover plate 1. The lifting permanent magnet 2 is in the form of a circular ring with an outer diameter of 15 mm, an inner diameter of 5 mm, a thickness of 10 mm, and a grade of N35. The upper pyrolytic graphite plate 4 and the lower pyrolytic graphite plate 6 have a diameter of 22 mm and a thickness of 2 mm. The upper pyrolytic graphite plate 4 and the lower pyr...
Embodiment 3
[0031] Such as Figure 2-5 As shown, an anti-magnetic levitation gas flowmeter with embedded photoelectric detection unit is an air flow meter based on the anti-magnetic levitation mechanism, including a housing 9 and a cover plate 1, the cover plate 1 is arranged on the upper part of the housing 9, and an anti-magnetic levitation system and the photoelectric contrast sensor unit, the anti-magnetic levitation system includes a lifting permanent magnet 2, an upper pyrolytic graphite plate 4, a magnet rotor 5 and a lower pyrolytic graphite plate 6 from top to bottom, and the lifting permanent magnet 2 is located at Below the cover plate 1. Lifting permanent magnet 2 is an annular ring with an outer diameter of 15mm, an inner diameter of 5mm, and a thickness of 10mm, and the grade is N35. Both the upper pyrolytic graphite plate 4 and the lower pyrolytic graphite plate 6 are cylinders with a diameter of 22 mm and a thickness of 2 mm. Through holes with a diameter of 3 mm are pro...
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