CN101726270A - Four-stage progressive pressure control system for bore diameter measuring apparatus and control method - Google Patents
Four-stage progressive pressure control system for bore diameter measuring apparatus and control method Download PDFInfo
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- CN101726270A CN101726270A CN200810201459A CN200810201459A CN101726270A CN 101726270 A CN101726270 A CN 101726270A CN 200810201459 A CN200810201459 A CN 200810201459A CN 200810201459 A CN200810201459 A CN 200810201459A CN 101726270 A CN101726270 A CN 101726270A
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Abstract
The invention discloses a four-stage progressive pressure control system for a bore diameter measuring apparatus; the bore diameter measuring apparatus comprises an air source, an air source switch, a check switch, a pressure measurement device and a test head, the pressure control system is used for controlling the speed of the air flow test head and is arranged between the air source switch and the test head, the pressure control system comprises four air compressors which are connected in parallel, and each air compressor is respectively connected with a flow speed control valve; the invention further discloses a four-stage progressive pressure control method for bore diameter measuring apparatus, the pressure control method is that: the regulated boosting range applied to the test head is divided into four sections uniformly, and the boosting speed of the four air compressors is respectively regulated according to the regulated boosting speed, and then the four air compressors carry out four-section boosting sequentially from low pressure to high pressure, so as to achieve the effect that the boosting rising speed in unit time is the same; the invention can realize air pressure rising at near-by constant speed and ensure the test precision of the bore diameter measuring apparatus.
Description
Technical field
The present invention relates to a kind of four-stage progressive pressure control system and control method that is used for bore measuring instrument.
Background technology
The filter paper and cardboard, medical mask, operation dress and the medical apparatus coated paper envelope etc. that are used for industries such as measured automobiles, medicine, Chinese workers are porosint.The aperture is one of basic parameter that characterizes porosint hole characteristic.General bore measuring instrument is to utilize to make air by force by by a kind of hole of material of liquid humidifying, and the pressure that observation post needs is used for estimating the size of the hole of material with this pressure and known surface tension of liquid.When the aperture of test porosint, it can be in a segment limit (0～20kpa) that the known by rule of thumb test head to bore measuring instrument is exerted pressure, in order to guarantee measuring accuracy, in this section pressure limit the air pressure that applies of the test head of bore measuring instrument there is certain requirement, must at the uniform velocity rises with 2～2.5kpa/min.But also there are not a kind of absolute apparatus and method at the uniform velocity that rise that can realize pressurizeing present stage.
Summary of the invention
The object of the present invention is to provide a kind of four-stage progressive pressure control system and control method that is used for bore measuring instrument, it can realize that air pressure is near at the uniform velocity rising.
A kind of four-stage progressive pressure control system that is used for bore measuring instrument provided by the present invention, comprise source of the gas, gas source switch, verification switch, device for pressure measurement, gas bomb and test head, described control pressurer system is used to control the speed of air flow test head, it is located between gas source switch and the test head, it comprises four air compressor that are connected in parallel, and connects a speed-regulating switch on each air compressor respectively.
The level Four that another kind provided by the present invention the is used for bore measuring instrument compress control method that goes forward one by one, be executed in above-mentioned four-stage progressive pressure control system, this compress control method is: the scope of boosting that will be applied to the setting on the test head is divided into four sections, the rate of rise of regulating four air compressor respectively again according to the rate of rise of setting, from low pressure to the high pressure, carry out four sections with the speed of setting by four air compressor successively then and boost, reach interior whole pressurization ascending velocity of unit interval and be close to identical.
The above-mentioned level Four that the is used for bore measuring instrument compress control method that goes forward one by one, wherein, the described adjusting rate of rise is to realize by the speed-regulating switch on each air compressor.
Owing to adopted the four-stage progressive pressure control system of bore measuring instrument and the technical solution of control method of being used for of the present invention, the scope of boosting that is about to set is divided into the quartern, control the ascending velocity of each section pressure more respectively by the rate of rise of regulating four air compressor, with this reach in the unit interval whole pressurization ascending velocity be close to identical, thereby guaranteed the measuring accuracy of bore measuring instrument.
Description of drawings
Fig. 1 is the structural representation that is used for the four-stage progressive pressure control system of bore measuring instrument of the present invention.
Embodiment
Referring to Fig. 1, the four-stage progressive pressure control system that is used for bore measuring instrument of the present invention, described bore measuring instrument comprises source of the gas 1, gas source switch 2, verification switch 3, device for pressure measurement 4, gas bomb 5 and test 6, control pressurer system is used to control the speed of air flow test 6, it is located between gas source switch 1 and the test 6, it comprises four air compressor that are connected in parallel 71,72,73,74, connects a speed-regulating switch 71 ', 72 ', 73 ', 74 ' on each air compressor respectively.
The level Four that the is used for bore measuring instrument of the present invention compress control method that goes forward one by one is:
Be divided into four sections with being applied to a test scope of upward setting of boosting, the rate of rise of regulating four air compressor respectively again according to the rate of rise of setting, the speed of being set successively from low pressure to the high pressure by four air compressor is carried out four sections and is boosted then, reaches that whole pressurization ascending velocity is close to identical in the unit interval.
Regulating the rate of rise is by each air compressor ' on speed-regulating switch ' realizes.
In one embodiment, the level Four that the is used for bore measuring instrument of the present invention compress control method that goes forward one by one, be executed in above-mentioned control pressurer system, the scope of boosting of the setting of bore measuring instrument is 0～20kpa, it is 2～2.5kpa/min that boosting of setting gathers way, be that the zero top pressure 20kpa that reaches needs be about 8～10 minutes with the time promptly also from pressure, the scope of boosting is divided into four sections, every section pressure is 4～5kpa, need to be about 2 minutes with the time, carry out from low pressure to the high pressure by four air compressor successively and boost, regulate respectively each air compressor speed-regulating switch reach 2～2.5kpa/min, promptly first air compressor 71 makes pressure be elevated to 5kpa from 0 with the rate of rise 2～2.5kpa/min that sets in 0 to the 2nd minute of beginning to boost, and closes the speed-regulating switch 71 ' of first air compressor 71; Then in the 2nd to the 4th minute of beginning to boost, make pressure be elevated to 10kpa, close the speed-regulating switch 72 ' of second air compressor 72 from 6kpa with the rate of rise 2～2.5kpa/min that sets by second air compressor 72; In the 4th to the 6th minute of beginning to boost, make pressure from 11kpa～be elevated to 15kpa by the 3rd air compressor 73 then, close the speed-regulating switch 73 ' of the 3rd air compressor 73 with the rate of rise 2～2.5kpa/min that sets; In the 6th to the 8th minute of beginning to boost, make pressure be elevated to 20kpa by the 4th air compressor 74 at last from 16kpa with the rate of rise 2～2.5kpa/min that sets, reach in the unit interval whole pressurization ascending velocity be close to identical, all with the rising that gathers way of 2～2.5kpa/min.
Below embodiment has been described in detail the present invention in conjunction with the accompanying drawings, and those skilled in the art can make the many variations example to the present invention according to the above description.Thereby some details among the embodiment should not constitute limitation of the invention, and the scope that the present invention will define with appended claims is as protection scope of the present invention.
Claims (3)
1. four-stage progressive pressure control system that is used for bore measuring instrument, described bore measuring instrument comprises source of the gas, gas source switch, verification switch, device for pressure measurement, gas bomb and test head, it is characterized in that, described control pressurer system is used to control the speed of air flow test head, it is located between gas source switch and the test head, it comprises four air compressor that are connected in parallel, and connects a speed-regulating switch on each air compressor respectively.
2. a level Four that is used for bore measuring instrument compress control method that goes forward one by one, be executed in as the described four-stage progressive pressure control system of above-mentioned claim 1, it is characterized in that, this compress control method is: the scope of boosting that will be applied to the setting on the test head is divided into four sections, the rate of rise of regulating four air compressor respectively again according to the rate of rise of setting, from low pressure to the high pressure, carry out four sections with the speed of setting by four air compressor successively then and boost, reach interior whole pressurization ascending velocity of unit interval and be close to identical.
3. the level Four that the is used for bore measuring instrument according to claim 2 compress control method that goes forward one by one is characterized in that, the described adjusting rate of rise is to realize by the speed-regulating switch on each air compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810201459A CN101726270A (en) | 2008-10-21 | 2008-10-21 | Four-stage progressive pressure control system for bore diameter measuring apparatus and control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810201459A CN101726270A (en) | 2008-10-21 | 2008-10-21 | Four-stage progressive pressure control system for bore diameter measuring apparatus and control method |
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| CN101726270A true CN101726270A (en) | 2010-06-09 |
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| CN200810201459A Pending CN101726270A (en) | 2008-10-21 | 2008-10-21 | Four-stage progressive pressure control system for bore diameter measuring apparatus and control method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107076359A (en) * | 2014-10-06 | 2017-08-18 | 斯科特科技公司 | System and method for automatic Loading fluid bottle |
| CN108050915A (en) * | 2017-12-14 | 2018-05-18 | 中国航发沈阳发动机研究所 | A kind of loading measuring device for being used to measure engine variable nozzle pluggage |
-
2008
- 2008-10-21 CN CN200810201459A patent/CN101726270A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107076359A (en) * | 2014-10-06 | 2017-08-18 | 斯科特科技公司 | System and method for automatic Loading fluid bottle |
| US10352502B2 (en) | 2014-10-06 | 2019-07-16 | Scott Technologies, Inc. | System and method for automatically filling fluid cylinders |
| AU2015328357B2 (en) * | 2014-10-06 | 2019-11-21 | Municipal Emergency Services, Inc. | System and method for automatically filling fluid cylinders |
| CN108050915A (en) * | 2017-12-14 | 2018-05-18 | 中国航发沈阳发动机研究所 | A kind of loading measuring device for being used to measure engine variable nozzle pluggage |
| CN108050915B (en) * | 2017-12-14 | 2020-03-06 | 中国航发沈阳发动机研究所 | Loading measurement system for measuring inner diameter of adjustable nozzle of engine |
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Open date: 20100609 |