CN2367250Y - Portable digital vacuum, air pressure and standard sphygmomanometer - Google Patents
Portable digital vacuum, air pressure and standard sphygmomanometer Download PDFInfo
- Publication number
- CN2367250Y CN2367250Y CN 99210867 CN99210867U CN2367250Y CN 2367250 Y CN2367250 Y CN 2367250Y CN 99210867 CN99210867 CN 99210867 CN 99210867 U CN99210867 U CN 99210867U CN 2367250 Y CN2367250 Y CN 2367250Y
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- China
- Prior art keywords
- pressure
- diaphragm
- air chamber
- bellows
- standard
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000004973 liquid crystal related substance Substances 0.000 claims description 8
- 238000005259 measurement Methods 0.000 abstract description 7
- 230000036772 blood pressure Effects 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 3
- 239000003814 drug Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000002775 capsule Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model relates to a portable digital vacuum, atmospheric pressure, standard sphygmomanometer, measurable quantity vacuum, atmospheric pressure and standard blood pressure etc. and digital display. The constant-pressure closed-mouth diaphragm box is provided with a diaphragm to divide an air chamber into two parts, a strain resistance bridge is laid on the diaphragm, the deformation of the diaphragm is converted into electrical quantity by utilizing the bridge resistance to be input into a single chip microcomputer, the measurement of a plurality of quantities can be realized, and the unit conversion is conveniently carried out. The air pressure height button can express the air pressure by the altitude height under the standard condition, and the zero setting operation can express the pressure difference, thereby being particularly suitable for high mountain operation people and meteorological observation.
Description
This utility model is a kind of portable multi-purpose measuring device that integrates functions such as vacuometer, barometer, ambient temperature meter, standard-sphygmomanometer, belongs to field of test instrument.
Supply medical small-sized oxygenerator on the present market, great majority are about to surrounding air and are compressed into highdensity air earlier based on the principles of " concentrate oxygen method ", by molecular sieve, oxygen separation are come out, and supply medical again after purification and supercharging.Therefore, parameters such as the oxygen generation concentration of oxygenerator, humidity, flow are all closely related with ambient atmosphere pressure, temperature, humidity etc.
For make to the small-sized oxygenerator of highlands configuration can be accurately, reliable, safe, work effectively, make them when rescuing the sick and wounded, really bring into play the effect of " help machine ", indexs such as just necessary their oxygen generation concentration of often monitoring, pressure, flow, therefore develop a kind of portable digital multipurpose instrument, make it have vacuometer, barometertic altimeter, ambient temperature meter and piezometer, for example: the functions such as standard that can be used as the calibration sphygomanometer are in one, and it is essential just to become plateau medicine institute.And at present the measurement of vacuum, atmospheric pressure, standard blood pressure etc. is instrumentation separately, and only be applicable to a kind of measurement, use very inconvenience.
The purpose of this utility model is to provide the portable type measuring device that is measured as one of one kind of multiple parameters (for example vacuum, atmospheric pressure, pressure altitude, atmospheric temperature, standard blood pressure), and adopts digital display mode.
The technical solution of the utility model is: this instrument comprises housing and inner core, case panel is provided with the liquid crystal digital tube display screen, key groups, be provided with the liquid crystal digital display module in the inner core, bellows, single-chip microcomputer, gas circuit is taken over and power supply, wherein bellows adopts the bellows of remaining silent, promptly utilize a diaphragm that air chamber is divided into two, wherein one is the level pressure air chamber that seals fully, another is tested air chamber, be laid with strain resistor electric bridge and thermometric temperature-sensitive resistor on the diaphragm, pressure official post diaphragm deformation between tested air chamber and level pressure air chamber, thereby the mat resistance bridge changes pressure reduction into voltage measurement.Be laid with single-chip microcomputer on capsule wall in addition, the sidewall of tested air chamber is provided with interface and links to each other with the gas circuit adapter.Utilize single-chip microcomputer and suitable control key, be equipped with corresponding program software, can realize multiple function of the present utility model.
The utlity model has many-sided superiority:
But 1. both external AC of electric power system, holding storage battery direct current supply in also can utilizing extremely is fit to the needs of field test, and after being full of electricity, operate as normal is more than 16 hours continuously;
2. measuring purposes is to integrate vacuum, air pressure, pressure altitude, atmospheric temperature etc., the particularly demonstration of pressure altitude, the measured result of air pressure is represented with height above sea level suitable under the standard state, for the health of personnel under the high mountain environment, all be very intuitively for research with extremely sensitive natural phenomena;
3. this instrument is applicable to performance monitoring, the mountaineering of " oxygenerator ", the needs of plateau medicine, also can be applied to departments such as environmental monitoring;
4. this instrument simplifies the operation to greatest extent, and built-in calculation procedure makes unit conversion simple.
Below in conjunction with accompanying drawing and embodiment this utility model is made a detailed description.
Fig. 1 is a stereoscopic sketch map of the present utility model;
Fig. 2 is Fig. 1 rear board sketch map;
Fig. 3 is this utility model core arrangement sketch map;
Fig. 4 is a bellows generalized section of the present utility model;
Fig. 5 is a circuit theory sketch map of the present utility model;
As shown in Figure 1, basis is novel is made up of housing 1 and inner core 2.Liquid crystal digital tube display screen 11 and key groups 12 are arranged on the front panel of housing 1, and key groups 12 has 7 buttons 121 and 7 luminous tubes 122; The back side of housing 1 is rear board, as shown shown in 2, is provided with power supply hold concurrently charging socket 13, on and off switch 14, printer interface 15, spare interface 16 and air-path interface 17.
The composition of this utility model inner core 2 is schematically illustrated by Fig. 3, and inner core 2 is made up of liquid crystal digital display module 21, bellows 22, single-chip microcomputer 23, gas circuit adapter 24 and power supply 25.Wherein the display screen 11 of liquid crystal digital display module 21 directly is installed on the panel, and its circuit links to each other with single-chip microcomputer 23; The structure of bellows 22 as shown in Figure 4, diaphragm 221 is divided into two the air chamber of bellows, the left side is a level pressure air chamber 222 among the figure, the right is tested air chamber 223.Wherein level pressure air chamber 222 seals, and its air pressure can be set to vacuum or a certain setting pressure value, and the level pressure value that present embodiment adopts is 10hPa; The right side wall of tested air chamber 223 is provided with interface 226, takes over the 24 air chamber interfaces 17 that connect on the housing rear board by gas circuit.In the present embodiment, diaphragm is made by monocrystal silicon, is laid with strain resistor electric bridge 224 and thermometric sensitive resistance 225 on diaphragm 221, and 23 of single-chip microcomputers are laid on the wall of bellows 22.
Power supply 25 of the present utility model adopts two kinds of methods of external Alternating Current Power Supply and the power supply of interior holding storage battery, power supply 25 comprises transformator, rectifying device, accumulator etc., when utilizing external Alternating Current Power Supply work, also accumulator is charged, so just can be when no external power supply, holding storage battery also can carry out work in the mat, very helps field usage.
Circuit theory of the present utility model as shown in Figure 5, wherein measuring circuit comprises into the strain resistor electric bridge 224 that resistance R 1, R2, R3, R4 that bridge-type connects form, the input and the power circuit of electric bridge join, and the two ends of outfan are cascade compensation semifixed resistor R0 and temperature detecting resistance R in parallel respectively
T, insert single-chip microcomputer 23 again.In the present embodiment, resistance R 1, R2, R3, R4, R0, R
TAll directly be integrated on the diaphragm 221,23 of single-chip microcomputers are located on the wall of bellows 22.Single-chip microcomputer 23 is except that inserting measuring circuit, also have key groups 12, liquid crystal digital display module 21, printer interface 15, spare interface 16 etc. all to be connected (not drawing among the figure) with the corresponding interface of single-chip microcomputer 23, utilize the program of special establishment, can make the real measurement of seeing several data of this utility model.
Key groups 12 has 7 buttons, K1, K2, K3, K4, K5, K6, K7, join with luminous tube D1, D2, D3, D4, D5, D6, D7 respectively, and realize the measurement of vacuum, atmospheric pressure, pressure altitude, temperature and the operation of base measuring pressure and zero setting respectively, for adapting to needs widely, also leave a spare key.
When utilizing present embodiment, then should press the zero setting key earlier, so that atmospheric pressure value at that time is shown as 0.00 as standard-sphygmomanometer calibration subordinate sphygomanometer.On this basis, press the vertification regulation regulation again, 40kPa, 36kPa, 32kPa are advanced in input ... (is a measuring point whenever to fall 4kPa) ... nominal pressure such as 4kPa, 0kPa value reads (or printing) by the corresponding indicating value that school subordinate shows, and finishes verification process.
Measurement data can be by printer interface 15 external printers if need print.
Claims (1)
1. portable digital vacuum, air pressure, standard-sphygmomanometer, comprise housing (1) and inner core (2), liquid crystal digital tube display screen (11) is arranged on the housing (1), key groups (12), be provided with liquid crystal digital display module (21) in the inner core (2), bellows (22), single-chip microcomputer (23), gas circuit is taken over (24) and power supply (25), it is characterized in that: wherein bellows (22) is the bellows of remaining silent, being provided with diaphragm (221) is divided into two air chamber, one of them is the level pressure air chamber (222) that seals fully, another is tested air chamber (223), be laid with strain resistor electric bridge (224) and thermometric temperature-sensitive resistor (225) on the diaphragm (221), be laid with single-chip microcomputer (23) on the wall of bellows (22), the sidewall of tested air chamber (223) is provided with interface (226) and links to each other with gas circuit adapter (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99210867 CN2367250Y (en) | 1999-05-07 | 1999-05-07 | Portable digital vacuum, air pressure and standard sphygmomanometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99210867 CN2367250Y (en) | 1999-05-07 | 1999-05-07 | Portable digital vacuum, air pressure and standard sphygmomanometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2367250Y true CN2367250Y (en) | 2000-03-08 |
Family
ID=34003928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99210867 Expired - Fee Related CN2367250Y (en) | 1999-05-07 | 1999-05-07 | Portable digital vacuum, air pressure and standard sphygmomanometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2367250Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105769150A (en) * | 2015-12-24 | 2016-07-20 | 广东小天才科技有限公司 | Method and system for prompting hypertension risk |
| CN106225985A (en) * | 2016-07-18 | 2016-12-14 | 无锡信大气象传感网科技有限公司 | Atmospheric pressure measurement device based on temperature-compensating |
| CN106225984A (en) * | 2016-07-18 | 2016-12-14 | 无锡信大气象传感网科技有限公司 | The control method of atmospheric pressure measurement device based on temperature-compensating |
| CN106248288A (en) * | 2016-07-18 | 2016-12-21 | 无锡信大气象传感网科技有限公司 | A kind of self-align atmospheric pressure measurement device |
-
1999
- 1999-05-07 CN CN 99210867 patent/CN2367250Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105769150A (en) * | 2015-12-24 | 2016-07-20 | 广东小天才科技有限公司 | Method and system for prompting hypertension risk |
| CN106225985A (en) * | 2016-07-18 | 2016-12-14 | 无锡信大气象传感网科技有限公司 | Atmospheric pressure measurement device based on temperature-compensating |
| CN106225984A (en) * | 2016-07-18 | 2016-12-14 | 无锡信大气象传感网科技有限公司 | The control method of atmospheric pressure measurement device based on temperature-compensating |
| CN106248288A (en) * | 2016-07-18 | 2016-12-21 | 无锡信大气象传感网科技有限公司 | A kind of self-align atmospheric pressure measurement device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |