CN106813825A - A kind of vacuum measurement method for vacuum fibrous glass sealed pipe fittings - Google Patents
A kind of vacuum measurement method for vacuum fibrous glass sealed pipe fittings Download PDFInfo
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- CN106813825A CN106813825A CN201510851838.6A CN201510851838A CN106813825A CN 106813825 A CN106813825 A CN 106813825A CN 201510851838 A CN201510851838 A CN 201510851838A CN 106813825 A CN106813825 A CN 106813825A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L21/00—Vacuum gauges
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Abstract
The invention discloses a kind of vacuum measurement method for vacuum fibrous glass sealed pipe fittings, shell including hand-held, measuring circuit plate is installed in shell, display screen, Pirani gauge interface, the full scale regulation button K being connected with measuring circuit plate are provided with case surfaceS, zero point regulation button KZ, power knob Kn.To 207 × 103 × 10mm, overall weight can be picked up easily volume-diminished of the present invention less than 1Kg, one hand, it is internal equipped with lithium battery, once fully charged continuously to use 6-8 hours, is capable of achieving multimetering, pickup wire more long is not needed, the convenience for using is substantially increased；Button K is adjusted by setting full scaleS, zero point regulation button KZ, power knob Kn, every regulation can be easily carried out to measuring circuit plate, and display screen can accurately show content and the direction of regulation, be easy to the quick regulation of operator, realize well it is two-way, quickly and accurately adjust.
Description
Technical field
The present invention relates to a kind of vacuum gauge, a kind of vacuum measurement method for vacuum fibrous glass sealed pipe fittings is specifically referred to.
Background technology
Vacuum gauge is exactly the sensor of measurement of vacuum.The signal transmission that vacuum gauge is measured is mainly used in the vacuum measurement field of vacuum environment to the vacuum that can just show tested vacuum environment on vacuum meter by enhanced processing, and such as vacuum coating, solar energy heat collection pipe makes, vacuum metling etc..Resistance vacuum rule principle be：During the gas molecule collision high-temp solid of low temperature, heat can be captured from solid.The vacuum meter that pressure is calculated by the heat captured by gas molecule is known as thermal radiation vacuum gauge.Thermal radiation vacuum gauge is applied primarily to middle low vacuum field..
World-renowned vacuum enterprise, uses platinum wire, instead of traditional filament in the production technology of Pirani ga(u)ge.Substantially increase product stability.The raising of stability causes that Pirani ga(u)ge is more widely applied.With the popularization of vacuum technique, single crystal furnace equipment is widely used in, meets photovoltaic industry basis monocrystalline silicon production.Energy-saving lamp capillary exhaust station is applied to, the vacuum meter deadlock for being caused due to spark leak detector sparking and high temperature in the past is solved the problems, such as；Vacuum with business industrial progress, comes into the field lived usually and be closely related.
In actual vacuum measurement survey crew often to run into measurement point more, situations such as measurement point distance, equipment instrument very much not Portable belt will be run into existing vacuum meter instrument, situations such as can not find power supply.Expend a large amount of human and material resources and financial resources.Existing low-vacuum measurement is mostly large-scale Pirani gauge instrument and transmitter series.Its volume of ohmer instrument is larger, and power supply is generally 220VAC, and Measurement channel is limited.Many in measurement point, just aobvious and be inconvenience during long range, staff is often worried because moving instrument connection power supply.Although Pirani gauge just send device that problem is solved in volume, because needing external power supply, regulate with instrument integral type, measure point floating when also for staff brings inconvenience.
The content of the invention
It is an object of the invention to provide a kind of vacuum measurement method for vacuum fibrous glass sealed pipe fittings, solve the problems, such as it is that current Pirani gauge or pick-up instrument are present in-convenience in use, to receive measurement distance limitation, circuit very long, convenient use is reached, the purpose of sensor line is reduced.
The purpose of the present invention is achieved through the following technical solutions：
A kind of vacuum measurement method for vacuum fibrous glass sealed pipe fittings, including hand-held shell, measuring circuit plate is installed in shell, display screen, Pirani gauge interface, the full scale regulation button K being connected with measuring circuit plate are provided with shellS, zero point regulation button KZ, power knob Kn.The present invention uses the measurement apparatus of hand-held, greatly reduce the volume of measuring instrument, by volume-diminished to 207 × 103 × 10mm, overall weight can be picked up easily less than 1Kg, one hand, and it is internal equipped with lithium battery, it is once fully charged continuously to use 6--8 hours, it is capable of achieving multimetering, it is not necessary to pickup wire more long, substantially increases the convenience for using；Button K is adjusted by setting full scaleS, zero point regulation button KZ, power knob Kn, every regulation can be easily carried out to measuring circuit plate, and display screen can accurately show content and the direction of regulation, be easy to the quick regulation of operator, realize well it is two-way, quickly and accurately adjust.
A backlight is additionally provided with a display screen, and case surface is provided with a power knob K for backlightm.The control of backlight has what MCU came, and backlight key is pressed when needing to light, and the backlight on liquid crystal display will be lighted, and power button is the master switch of hand-held set, is opening equipment or pass hull closure when pressing；By setting backlight, can be used in the bad position of light, by backlight, the visibility of user can be improved, be conducive to operation, improve operation comfort.
One layer of antistatic soft plastic layer is provided with the outside of the hand-held outer case.Further; for the normal work of holding circuit plate, it is to avoid the measurement accuracy of the electrostatic breakdown measuring circuit plate that outside electrostatic or human body are produced, one layer of antistatic soft plastic layer is set by the outside of shell; outer inside and outside electrostatic can be separated, the purpose of protection is reached.
Described measuring circuit plate includes：
Signal acquisition circuit：The pick-up signal that the conveying of Pirani gauge interface comes is received, and the signal is carried out into sampling and be delivered to MCU signal processors；
MCU signal processors：Button K is adjusted according to full scaleS（4）And/or zero point regulation button KZ（5）Input signal come signal acquisition circuit is carried out full scale and zero point regulation, receive signal acquisition circuit conveying vacuum pick-up signal simultaneously be converted into data signal, shown by display screen；
Display screen：Data signal to the conveying of MCU signal processors shows, adjustment information is shown when full scale and zero point is adjusted；
Lithium battery：For display screen, MCU signal processors, signal acquisition circuit provide power supply.
The present invention departs from conventional power source powering mode, using lithium battery power supply, can be by the 3.3v voltages and 12v voltages of internal 3.3v circuits and 12v circuit outputs stabilization when lithium battery voltage is more than 3.4V, both circuit small volumes, it is simple and practical, can be embedded in the mainboard of hand-held set, mix Pirani gauge analogue signal acquisition circuit, mcu data processing circuits and display circuit, the basic function of ohmer is just completed, so that whole product realizes miniaturization, portable feature.
The present invention compared with prior art, has the following advantages and advantages：
A kind of vacuum measurement method for vacuum fibrous glass sealed pipe fittings of the invention, using the measurement apparatus of hand-held, the volume of measuring instrument is greatly reduced, by volume-diminished to 207 × 103 × 10mm, overall weight is less than 1Kg, one hand can be picked up easily, it is internal equipped with lithium battery, once fully charged continuously to use 6--8 hours, is capable of achieving multimetering, pickup wire more long is not needed, the convenience for using is substantially increased；Button K is adjusted by setting full scaleS, zero point regulation button KZ, power knob Kn, every regulation can be easily carried out to measuring circuit plate, and display screen can accurately show content and the direction of regulation, be easy to the quick regulation of operator, realize well it is two-way, quickly and accurately adjust.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, constitutes the part of the application, does not constitute the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is intended to for external structure of the present invention；
Fig. 2 is circuit theory diagrams of the present invention.
Mark and corresponding parts title in accompanying drawing：
1- shells, 2- display screens, 3- Pirani gauge interfaces, 4- full scales regulation button, 5- zero points regulation button, 6- power knobs, the power knob of 7- backlights, 8- antistatic soft plastic layers.
Specific embodiment
To make the object, technical solutions and advantages of the present invention become more apparent, with reference to embodiment and accompanying drawing, the present invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, not as a limitation of the invention.
Embodiment
As shown in Fig. 1 to 2, a kind of vacuum measurement method for vacuum fibrous glass sealed pipe fittings of the invention, shell 1 including hand-held, measuring circuit plate is installed in shell 1, the display screen 2 being connected with measuring circuit plate is provided with the surface of shell 1, Pirani gauge interface 3, full scale regulation button KS4, zero point regulation button KZ5, power knob Kn6, a backlight is additionally provided with circuit boards, the surface of shell 1 is provided with a power knob Km7 for backlight, Pirani gauge interface 3, full scale regulation button KS4, zero point regulation button KZ5, and power knob Km7 is respectively positioned on thin film press button switch, the surface of shell 1 is fixed on by the way of laminating；The outside of hand-held outer case 1 is provided with one layer of antistatic soft plastic layer 8, and measuring circuit plate includes：Signal acquisition circuit：Receive the pick-up signal that the conveying of Pirani gauge interface comes, and the signal is carried out into sampling be delivered to MCU signal processors, the circuit is constant-temperature circuit, the characteristics of using this circuit, Pirani gauge exported the analog signal of 6V to 0.7V in air to 0.1Pa, then through the collection signal of the laggard voltage follower 2v--0.27v of partial pressure；MCU signal processors：The input signal of button KS4 and/or zero point regulation button KZ5 is adjusted according to full scale to carry out signal acquisition circuit full scale and zero point regulation, receive the vacuum pick-up signal of signal acquisition circuit conveying and be converted into data signal, shown by display screen, signal acquisition circuit exports suitable voltage signal and is sent to signal processing unit and MCU signal processors, and MUC is ADUC831 single-chip microcomputers, and its internal resource enriches, there are 8 road ad to be input into, with 2 road da outputs, ad is 12 precision, meets measurement demand；Display screen：Data signal to the conveying of MCU signal processors shows, adjustment information is shown when full scale and zero point are adjusted, mainly include 12864 liquid crystal displays and display connecting plate, 12864 liquid crystal displays are powered for yellow screen 3.3V, are characterized in that the small display data of power consumption is directly perceived.Display connecting plate carries the connection of this 12864 display and mainboard；Lithium battery：For backlight, display screen, MCU signal processors, signal acquisition circuit provide power supply, lithium battery is lithium battery, there is 3.3V to export and 12V outputs, wherein TPS7333 completes the conversion that lithium battery is pressed onto 3.3V voltage outputs, 3.3V voltages are system power supply, and 12V power supply circuits are powered for the signal acquisition circuit of Pirani gauge analog signal；Using the LM3488 booster circuits of TI, output voltage is adjusted by adjusting the ratio of voltage；The present invention uses the measurement apparatus of hand-held, greatly reduce the volume of measuring instrument, by volume-diminished to 207 × 103 × 10mm, overall weight can be picked up easily less than 1Kg, one hand, and it is internal equipped with lithium battery, it is once fully charged continuously to use 6--8 hours, it is capable of achieving multimetering, it is not necessary to pickup wire more long, substantially increases the convenience for using；Button Ks, zero point regulation button Kz, power knob Kn are adjusted by setting full scale, every regulation easily can be carried out to measuring circuit plate, and display screen can accurately show content and the direction of regulation, be easy to the quick regulation of operator, realize well it is two-way, quickly and accurately adjust.
Above-described specific embodiment; the purpose of the present invention, technical scheme and beneficial effect are further described; should be understood that; the foregoing is only specific embodiment of the invention; the protection domain being not intended to limit the present invention; all any modification, equivalent substitution and improvements within the spirit and principles in the present invention, done etc., should be included within the scope of the present invention.
Claims (4)
1. a kind of vacuum measurement method for vacuum fibrous glass sealed pipe fittings, it is characterised in that：Shell including hand-held（1）, in shell（1）Measuring circuit plate is inside installed, in shell（1）On be provided with the display screen being connected with measuring circuit plate（2）, Pirani gauge interface（3）, full scale regulation button KS（4）, zero point regulation button KZ（5）, power knob Kn（6）；Using the measurement apparatus of hand-held, greatly reduce the volume of measuring instrument, by volume-diminished to 207 × 103 × 10mm, overall weight can be picked up easily less than 1Kg, one hand, and it is internal equipped with lithium battery, it is once fully charged continuously to use 6--8 hours, it is capable of achieving multimetering, it is not necessary to pickup wire more long, substantially increases the convenience for using；Button K is adjusted by setting full scaleS, zero point regulation button KZ, power knob Kn, every regulation can be easily carried out to measuring circuit plate, and display screen can accurately show content and the direction of regulation, be easy to the quick regulation of operator, realize well it is two-way, quickly and accurately adjust.
2. a kind of vacuum measurement method for vacuum fibrous glass sealed pipe fittings according to claim 1, it is characterised in that：In display screen（2）On be additionally provided with a backlight, in shell（1）Surface is provided with a power knob K for backlightm（7）.
3. a kind of vacuum measurement method for vacuum fibrous glass sealed pipe fittings according to claim 1, it is characterised in that：The hand-held outer case（1）Outside be provided with one layer of antistatic soft plastic layer（8）.
4. a kind of vacuum measurement method for vacuum fibrous glass sealed pipe fittings as claimed in any of claims 1 to 3, it is characterised in that described measuring circuit plate includes：
Signal acquisition circuit：The pick-up signal that the conveying of Pirani gauge interface comes is received, and the signal is carried out into sampling and be delivered to MCU signal processors；
MCU signal processors：Button K is adjusted according to full scaleS（4）And/or zero point regulation button KZ（5）Input signal come signal acquisition circuit is carried out full scale and zero point regulation, receive signal acquisition circuit conveying vacuum pick-up signal simultaneously be converted into data signal, shown by display screen；
Display screen：Data signal to the conveying of MCU signal processors shows, adjustment information is shown when full scale and zero point is adjusted；
Lithium battery：For display screen, MCU signal processors, signal acquisition circuit provide power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510851838.6A CN106813825A (en) | 2015-11-29 | 2015-11-29 | A kind of vacuum measurement method for vacuum fibrous glass sealed pipe fittings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510851838.6A CN106813825A (en) | 2015-11-29 | 2015-11-29 | A kind of vacuum measurement method for vacuum fibrous glass sealed pipe fittings |
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| Publication Number | Publication Date |
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| CN106813825A true CN106813825A (en) | 2017-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510851838.6A Pending CN106813825A (en) | 2015-11-29 | 2015-11-29 | A kind of vacuum measurement method for vacuum fibrous glass sealed pipe fittings |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107525624A (en) * | 2017-06-20 | 2017-12-29 | 宁波艾弗森电子有限公司 | A kind of vacuum instrument |
-
2015
- 2015-11-29 CN CN201510851838.6A patent/CN106813825A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107525624A (en) * | 2017-06-20 | 2017-12-29 | 宁波艾弗森电子有限公司 | A kind of vacuum instrument |
| CN107525624B (en) * | 2017-06-20 | 2024-03-19 | 宁波艾弗森电子有限公司 | Vacuum degree instrument |
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Application publication date: 20170609 |
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| WD01 | Invention patent application deemed withdrawn after publication |