CN102519558B - Detector for correcting measuring accuracy of sonic nozzle of diaphragm gas meter - Google Patents

Detector for correcting measuring accuracy of sonic nozzle of diaphragm gas meter Download PDF

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Publication number
CN102519558B
CN102519558B CN 201110446557 CN201110446557A CN102519558B CN 102519558 B CN102519558 B CN 102519558B CN 201110446557 CN201110446557 CN 201110446557 CN 201110446557 A CN201110446557 A CN 201110446557A CN 102519558 B CN102519558 B CN 102519558B
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CN
China
Prior art keywords
photoelectric
gas meter
diaphragm gas
measuring accuracy
sonic nozzle
Prior art date
Application number
CN 201110446557
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Chinese (zh)
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CN102519558A (en
Inventor
刘建川
向兴尧
窦薇
袭祥云
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西南计算机有限责任公司
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Priority to CN 201110446557 priority Critical patent/CN102519558B/en
Publication of CN102519558A publication Critical patent/CN102519558A/en
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Publication of CN102519558B publication Critical patent/CN102519558B/en

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Abstract

The invention discloses a detector for correcting the measuring accuracy of a sonic nozzle of a diaphragm gas meter. The detector consists of a photoelectric acquisition device and a photoelectric coder, wherein the photoelectric acquisition device comprises a base, a photoelectric sensor arranged in a groove of the base, and a permanent magnet arranged in one side of the base; the photoelectric coder comprises a photoelectric coding disk connected to the end of a rotating shaft in a matched mode, and annular magnetic steel arranged in the middle of the rotating shaft; and four radial strip-type notches are formed on the edge of the photoelectric coding disk at equal intervals. The distance between the coding disk of the photoelectric coder and a meter body is greatly shortened, so that the phenomenon that the photoelectric coder swings in the process of operating the gas meter to be detected is avoided; the photoelectric coder is provided with the notches, so that the phenomenon that a signal is instable in the data acquisition process is avoided; the distance between an infrared transmitting tube and an infrared receiving tube of the photoelectric acquisition device is small, so that the signal is stable and reliable; and the repeated detection process is reduced by 91 percent, work efficiency is improved by 33.4 percent, and the first pass yield of the product is improved to 99.7 percent.

Description

A kind of detecting device of proofreading and correct diaphragm gas meter sonic nozzle measuring accuracy

Technical field

The present invention relates to the gas meter, flow meter measuring accuracy and proofread and correct utensil, be specifically related to a kind of detecting device of proofreading and correct diaphragm gas meter sonic nozzle measuring accuracy.

Technical background

Diaphragm gas meter measuring accuracy commonly used is proofreaied and correct and is adopted photoelectricity collector and photoelectric encoder.Its principle is: send the operation valve of opening corresponding flow behind low discharge, middle flow and the big flow control signal automatically, tested gas meter, flow meter entry into service respectively by computing machine; Photoelectricity collector emission infrared light, when in four branches that run into photoelectric encoder one of them, photoelectricity collector emission infrared light will reflect by the photoelectricity collector and receive, and counts a pulse signal.When tested gas meter, flow meter fortune turns around, the photoelectricity collector will collect four pulse signals and give computing machine with it, computing machine will calculate the error of tested gas meter, flow meter by the time of calculating four pulse signals that the photoelectricity collector collects, calculate the adjustment gear that to select for use by this error again, tested gas meter, flow meter is adjusted in the error precision of national regulation.Be characterized in: this kind photoelectricity sampling mode commonly used, because this kind photoelectricity sampling scrambler is " ten " font, and code-wheel is apart from the distance (40mm) too far away of table body, swing is bigger in the operational process of tested gas meter, flow meter, make the photoelectricity collector very uncertain when the signal that collection reflects, have and leak the phenomenon adopt and take place, and if extraneous light too strong, the situation that can gather jitter.Therefore, the error information that computing machine calculates just has deviation, and this tested gas meter, flow meter can not be adjusted in the error precision of national regulation by the apolegamy gear, causes the duplicate detection process to increase, and work efficiency is not high, and the disposable qualification rate of product is not high.Therefore, photoelectricity collector and the photoelectric encoder of diaphragm gas meter measuring accuracy correction commonly used need be improved.

Summary of the invention

The purpose of this invention is to provide a kind of detecting device of proofreading and correct diaphragm gas meter sonic nozzle measuring accuracy, this detecting device can overcome the defective of photoelectric encoder swing, make signal stabilization in the data acquisition, reliable, reduce the duplicate detection process, increase work efficiency and the disposable qualification rate of product.

A kind of detecting device of proofreading and correct diaphragm gas meter sonic nozzle measuring accuracy of the present invention is made up of photoelectricity collector and photoelectric encoder, it is characterized in that:

Described photoelectricity collector comprises pedestal, is located at the photoelectric sensor in the base recess and is located at the interior permanent magnet of pedestal one side;

Described photoelectric encoder comprises the photoelectric coded disk that is connected on a roller end and is located at the annular magnetic steel at rotating shaft middle part that the edge of described photoelectric coded disk is provided with four roads equidistant radially bar v notch v.

Further, described photoelectric sensor is an infrared electro power valve and an infrared electro receiving tube, and is encapsulated in the plastic stent.

During detection, the rotating shaft of described photoelectric encoder is connected with the diaphragm gas meter that is detected; The pedestal of described photoelectricity collector is installed on the detected diaphragm gas meter, and photoelectric sensor is connected with computing machine near the edge of the photoelectric coded disk of photoelectric encoder and by signal connecting line.

The present invention has improved photoelectricity collector and photoelectric encoder.(model: GK112), this photoelectric sensor is encapsulated in the plastic stent by an infrared electro power valve and an infrared electro receiving tube to be formed to have made the photoelectricity collector into a photoelectric sensor; Make photoelectric encoder into a disk, shortened the distance of photoelectric coded disk with the table body, and made breach collection aspect into.

The present invention compares with prior art and has the following advantages: because the code-wheel of photoelectric encoder shortens dramatically (5mm) apart from the distance of showing body, in the operation process of tested gas meter, flow meter the photoelectric encoder dancing can not appear, and photoelectric encoder has been made the breach form, avoided jitter phenomenon in the data acquisition; The photoelectricity collector has changed infrared photoelectric sensor into, and infrared transmitting tube and infrared receiving tube close together, and signal is highly stable reliable; The duplicate detection process has reduced 91%, and work efficiency has improved 33.4%, and the disposable qualification rate of product has brought up to 99.7%.

Description of drawings

Fig. 1 is the structural representation of photoelectricity collector of the present invention;

Fig. 2 is the structural representation of photoelectric encoder of the present invention;

Fig. 3 is the synoptic diagram that the present invention proofreaies and correct diaphragm gas meter sonic nozzle measuring accuracy;

Among the figure: 1-photoelectric sensor, 2-pedestal, 3-permanent magnet, 4-photoelectric coded disk, 5-annular magnetic steel, 6-signal connecting line, the tested diaphragm gas meter of 7-.

Embodiment

The present invention is further illustrated below in conjunction with accompanying drawing.

Referring to a kind of detecting device of proofreading and correct diaphragm gas meter sonic nozzle measuring accuracy illustrated in figures 1 and 2, formed by photoelectricity collector and photoelectric encoder, be characterized in:

Described photoelectricity collector comprises pedestal 2, is located at the photoelectric sensor 1 in the base recess and is located at the interior permanent magnet 3 of pedestal one side;

Described photoelectric encoder comprises the photoelectric coded disk 4 that is connected on a roller end and the annular magnetic steel 5 that is located at the rotating shaft middle part, and the edge of described photoelectric coded disk 4 is provided with four roads equidistant radially bar v notch v.

Further, described photoelectric sensor 1 is an infrared electro power valve and an infrared electro receiving tube.

Referring to Fig. 3, during detection, the rotating shaft of described photoelectric encoder is connected with the diaphragm gas meter 7 that is detected; The pedestal 2 of described photoelectricity collector is installed on the detected diaphragm gas meter, and photoelectric sensor 1 is connected with computing machine near the edge of the photoelectric coded disk 4 of photoelectric encoder and by signal connecting line 6.

Computing machine sends the operation valve of opening corresponding flow behind low discharge, middle flow and the big flow control signal automatically, tested gas meter, flow meter entry into service respectively.Photoelectricity collector emission infrared light, when running into four of photoelectric encoder radially during one of them in the bar v notch v, the infrared light of photoelectricity collector infrared transmitting tube emission will be received by the infrared receiving tube of photoelectricity collector, counts a pulse signal.When tested gas meter, flow meter fortune turns around, the photoelectricity collector will collect four pulse signals and give the control computing machine with it, computing machine calculates the error of tested gas meter, flow meter by the time of calculating the photoelectricity collector and will collect four pulse signals, calculate the adjustment gear that to select for use by this error again, tested gas meter, flow meter is adjusted in the error precision of national regulation.

Claims (3)

1. a detecting device of proofreading and correct diaphragm gas meter sonic nozzle measuring accuracy is made up of photoelectricity collector and photoelectric encoder, it is characterized in that:
Described photoelectricity collector comprises pedestal (2), is located at the photoelectric sensor (1) in the base recess and is located at the interior permanent magnet (3) of pedestal one side;
Described photoelectric encoder comprises the photoelectric coded disk (4) that is connected on a roller end and is located at the annular magnetic steel (5) at rotating shaft middle part that the edge of described photoelectric coded disk (4) is provided with four roads equidistant radially bar v notch v.
2. a kind of detecting device of proofreading and correct diaphragm gas meter sonic nozzle measuring accuracy according to claim 1, it is characterized in that: described photoelectric sensor (1) is an infrared electro power valve and an infrared electro receiving tube, and is encapsulated in the plastic stent.
3. a kind of detecting device of proofreading and correct diaphragm gas meter sonic nozzle measuring accuracy according to claim 1 is characterized in that: the rotating shaft of described photoelectric encoder is connected with detected diaphragm gas meter (7); The pedestal of described photoelectricity collector (2) is installed on the detected diaphragm gas meter, and photoelectric sensor (1) is connected with computing machine near the edge of the photoelectric coded disk (4) of photoelectric encoder and by signal connecting line (6).
CN 201110446557 2011-12-28 2011-12-28 Detector for correcting measuring accuracy of sonic nozzle of diaphragm gas meter CN102519558B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201110446557 CN102519558B (en) 2011-12-28 2011-12-28 Detector for correcting measuring accuracy of sonic nozzle of diaphragm gas meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201110446557 CN102519558B (en) 2011-12-28 2011-12-28 Detector for correcting measuring accuracy of sonic nozzle of diaphragm gas meter

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CN102519558B true CN102519558B (en) 2013-08-28

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2638335Y (en) * 2003-05-09 2004-09-01 长春第一光学有限公司 Photoelectric coder without rolling bearing
US7078677B2 (en) * 2004-01-21 2006-07-18 Chee Keong Chong Optical encoder disk having a region that continuously increases in size
US7139641B2 (en) * 2003-03-27 2006-11-21 Taiwan Semiconductor Manufacturing Co., Ltd. Wafer protection system
CN1928512A (en) * 2006-09-26 2007-03-14 重庆前卫克罗姆表业有限责任公司 Grating electronic counting pulse generator for fine gas meter
CN101779938A (en) * 2009-01-20 2010-07-21 和硕联合科技股份有限公司 Automatic floor cleaning device and method for detecting operating state of motor thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000281233A (en) * 1999-03-31 2000-10-10 Canon Inc Belt device and image-forming device
JP5407620B2 (en) * 2009-07-15 2014-02-05 株式会社リコー Oil coating device, fixing device including the same, and electrophotographic device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7139641B2 (en) * 2003-03-27 2006-11-21 Taiwan Semiconductor Manufacturing Co., Ltd. Wafer protection system
CN2638335Y (en) * 2003-05-09 2004-09-01 长春第一光学有限公司 Photoelectric coder without rolling bearing
US7078677B2 (en) * 2004-01-21 2006-07-18 Chee Keong Chong Optical encoder disk having a region that continuously increases in size
CN1928512A (en) * 2006-09-26 2007-03-14 重庆前卫克罗姆表业有限责任公司 Grating electronic counting pulse generator for fine gas meter
CN101779938A (en) * 2009-01-20 2010-07-21 和硕联合科技股份有限公司 Automatic floor cleaning device and method for detecting operating state of motor thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP特开2000-281233A 2000.10.10

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