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Dual-phototube flow counting sensor and operation method thereof

A technology of counting sensors and photocells, which is applied in the direction of volume measurement, liquid/fluid solid measurement, instruments, etc., can solve the problems of high cost, inconsistent value and actual value, and the operation is easily interfered by external magnetic field, so as to reduce the cost of equipment , to avoid misreading, to avoid the effect of external magnetic interference

Pending Publication Date: 2018-07-06
湖南汉德史特仪表有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, there are certain defects in the above two conversion methods: because the conversion method uses magnetic sensors, it is easily disturbed by the external magnetic field during operation;
[0007] The direct reading conversion method requires a large number of photocells (usually more than 30 photocells are required to realize data collection), resulting in high cost
And there may also be problems such as inconsistency between the value read out by encoding and the actual value

Method used

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  • Dual-phototube flow counting sensor and operation method thereof
  • Dual-phototube flow counting sensor and operation method thereof
  • Dual-phototube flow counting sensor and operation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0031] See also figure 1 with figure 2 , Respectively are the structural schematic diagram and side view of Embodiment 1 of the dual phototube flow counting sensor 1 provided by the present invention.

[0032] The dual photocell flow counting sensor 1 is set on the meter head of the G4 gas meter, and includes a counter composed of multiple counting wheels 2, a gear system composed of multiple gears 3, half moon gear 4, half moon gear shaft 5, and PCB Board 6, two photocells 7.

[0033] The unit of measurement of the counting wheel 2 from right to left is 0.001m³ / circle, 0.01m³ / circle, ..., 10000m³ / circle, respectively. The counting wheel 2 is driven by the gear 3, so that the rotation speed is consistent with the unit of measurement and increases in decimal.

[0034] The half-moon gear 4 engages with one of the gears 3, and the half-moon gear 4 with a suitable diameter is selected so that the angular velocity of the half-moon gear 4 is consistent with the angular velocity of the co...

Embodiment 2

[0046] See image 3 , Is the top view of embodiment 2 of the dual phototube flow counting sensor provided by the present invention.

[0047] The dual photocell flow counting sensor 1 is set on the meter head of the G4 gas meter, and includes a counter composed of multiple counting wheels 2, a gear system composed of multiple gears 3, half moon gear 4, half moon gear shaft 5, and PCB Plate 6, two photocells 7, and transmission shaft 8.

[0048] The unit of measurement of the counting wheel 2 from right to left is 0.001m³ / circle, 0.01m³ / circle, ..., 10000m³ / circle, respectively. The counting wheel 2 is driven by the gear 3, so that the rotation speed is consistent with the unit of measurement and increases in decimal.

[0049] Both ends of the transmission shaft 8 are respectively provided with a transmission gear, and the two transmission gears are respectively connected with one gear in the gear system and the half moon gear 4. The half-moon gear 4 with a suitable diameter is sele...

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Abstract

The invention provides a dual-phototube flow counting sensor and an operation method thereof. The dual-phototube flow counting sensor comprises a counter, a gear system, a half-moon gear, a half-moongear shaft, a PCB and two phototubes, wherein the counter comprises a plurality of counting wheel discs, and the gear system is used for driving each counting wheel disc to rotate. The operation method comprises the steps of starting at a fixed period, converting analog signals into digital signals, judging the rotating number of turns of the half-moon gear, calculating the flow, and the like. According to the dual-phototube flow counting sensor and the operation method, the technical problems in the prior art that a manner for converting mechanical counting into electrical signals is easily interfered by an external magnetic field, or the cost is high, and the counting is inaccurate are solved.

Description

Technical field [0001] The invention relates to the field of signal conversion equipment, in particular to a double photoelectric tube flow counting sensor. Background technique [0002] The current gas meters, water meters and other flow meters are mostly purely mechanical. In order to realize the functions of IC card prepayment and wireless remote transmission, it is necessary to install an electronic auxiliary device to read the value of the mechanical gear and convert the mechanical count For electrical signals. [0003] The existing technology conversion methods are mainly divided into two categories: [0004] 1. Real-time conversion: The signal element of the electromechanical conversion unit of the auxiliary device works in real time to generate the electromechanical conversion signal, and the auxiliary device records the air volume in real time. Usually reed sensors, Hall sensors, and magnetoresistive sensors are used to convert the detected magnetic signal pulses into volu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F15/07
CPCG01F15/07
Inventor 孙柏君黄承昭易顺勇严谨李潇盛浩曾德
Owner 湖南汉德史特仪表有限公司