CN2696542Y - Apparatus capable of accurately measuring lung capacity - Google Patents
Apparatus capable of accurately measuring lung capacity Download PDFInfo
- Publication number
- CN2696542Y CN2696542Y CN 200320103032 CN200320103032U CN2696542Y CN 2696542 Y CN2696542 Y CN 2696542Y CN 200320103032 CN200320103032 CN 200320103032 CN 200320103032 U CN200320103032 U CN 200320103032U CN 2696542 Y CN2696542 Y CN 2696542Y
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- CN
- China
- Prior art keywords
- pressure sensor
- air inlet
- pressure
- micro
- tubule
- Prior art date
- 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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- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses an apparatus capable of accurately measuring lung capacity, which solves the problem that the measurement and the use are inaccurate and inconvenient in existing apparatus for measuring lung capacity. The apparatus capable of accurately measuring lung capacity comprises a blow pistol, a pressure-difference generation device, a micro differential pressure sensor, and a circuit of constant current source supplying electricity for the micro differential pressure sensor. The blow pistol connects with the pressure-difference generation device; the micro differential pressure sensor connects with the pressure-difference generation device. When a conner blows air to the blow pistol, the air enters into the air inlet pipe; the air enters into the outlet pipe by a throttling small hole. The intake air pressure value measured by the air inlet taking pressure tubule is transmitted to the micro differential pressure sensor; the outlet air pressure value measured by the air-out taking pressure tubule is transmitted to the micro differential pressure sensor; the micro differential pressure sensor integrates the intake air pressure and the outlet air pressure, and the capacity of air passing through the throttling small hole is obtained. Thus, the lung capacity of the conner can be accurately measured.
Description
Technical field
This utility model relates to a kind of device of measuring vital capacity.
Background technology
The device of existing measurement vital capacity comprises blow gun, be used to measure the floating drum meter of air blowing volume, be connected by a soft trachea between this floating drum meter and the described blow gun, described floating drum meter comprises that one fills the container of water, is built-in with the graduated floating drum of an outer wall at described container.The gas that human body blows out enters from blow gun, enters the floating drum meter through soft trachea, and floating drum emerges, and the scale from the floating drum outer wall can be read vital capacity.The density of water can change within the specific limits with the variation of ambient temperature, and therefore in Various Seasonal, different time has certain error with the same people's that the device of existing measurement vital capacity is measured vital capacity; If liquid level in the place injustice, container and the scale on the floating drum outer wall also can produce error; The existing device of measuring vital capacity is not only measured inaccuracy but also is used inconvenient.
Summary of the invention
At the deficiency that the existing device of measuring vital capacity exists, this utility model provides a kind of device that can accurately measure vital capacity accurate, easy to use of measuring.
For achieving the above object, the device that this utility model can accurately be measured vital capacity is by the following technical solutions: this utility model can accurately be measured the device of vital capacity, comprise blow gun, the draught head generating means, micro-pressure sensor is the constant-current source circuit of this micro-pressure sensor power supply, main frame, described blow gun links to each other with described draught head generating means, and described micro-pressure sensor links to each other with described draught head generating means, and described main frame links to each other with described micro-pressure sensor.
Can accurately measure in the device of vital capacity above-mentioned, described draught head generating means comprises an air inlet pipe, one escape pipe, described air inlet pipe communicates by a throttling pore with described escape pipe, the vertical air inlet pressure tubule that is equipped with described air inlet pipe, the vertical pressure tubule of giving vent to anger that is equipped with described escape pipe, the described air inlet pressure tubule other end links to each other with described micro-pressure sensor, the described pressure tubule other end of giving vent to anger links to each other with described micro-pressure sensor, and described blow gun links to each other with described air inlet pipe.
Can accurately measure in the device of vital capacity above-mentioned, the model of described micro-pressure sensor is NPC1210, described constant-current source circuit is made up of chip LM324A and LM4040, the in-phase input end of the described micro-pressure sensor NPC1210 of output termination of described chip LM324A, the out-phase input of described micro-pressure sensor NPC1210 is by an adjustable resistance ground connection.
Can accurately measure in the device of vital capacity above-mentioned, described air inlet pressure tubule and the described pressure tubule of giving vent to anger are a bend pipe, described air inlet pressure tubule one end is perpendicular to described air inlet pipe, the described micro-pressure sensor of another termination, described bend pipe places described air inlet pipe back, described pressure tubule one end of giving vent to anger is perpendicular to described escape pipe, and the described micro-pressure sensor of another termination, described bend pipe place described escape pipe back.
The device that this utility model can accurately be measured vital capacity has following technique effect: when the tester when blow gun is blown, gas enters described air inlet pipe, enter described escape pipe by throttling pore then, the atmospheric pressure value that advances that described air inlet pressure tubule records is transferred to described micro-pressure sensor, the atmospheric pressure value that goes out that the described pressure tubule of giving vent to anger records is transferred to described micro-pressure sensor, and described micro-pressure sensor is pressed the volume that obtains flowing through the gas of throttling pore with going out that draught head carries out integration to air inlet.Thereby accurately measure experimenter's lung live-weight size.Described air inlet pressure tubule and the described pressure tubule of giving vent to anger are short and crooked, flow to micro-pressure sensor inside to prevent condensate water.It is good that trachea shortens the back circulation of air, can not become the place of sheltering evil people and countenance evil practices.Not only certainty of measurement has improved, and easy to maintenance.
Description of drawings
Fig. 1 can accurately measure the structural representation of the device of vital capacity for this utility model.
Fig. 2 can accurately measure the manipulated or operated apparatus of vital capacity for this utility model.
The specific embodiment
With reference to accompanying drawing 1, this utility model can accurately be measured the device of vital capacity, comprises blow gun 1, draught head generating means 3, micro-pressure sensor 2, cable 9, described blow gun 1 links to each other with described draught head generating means 3, and described micro-pressure sensor 2 links to each other with described draught head generating means 3.Connect by cable 9 between whole vital capacity test set and the main frame.
Can accurately measure in the device of vital capacity at this utility model, described draught head generating means 3 comprises an air inlet pipe 4, one escape pipe 5, described air inlet pipe 4 communicates by a throttling pore 6 with described escape pipe 5, with the described air inlet pipe 4 vertical air inlet pressure tubules 7 that are equipped with, the vertical pressure tubule 8 of giving vent to anger that is equipped with described escape pipe 5, described air inlet pressure tubule 7 other ends link to each other with described micro-pressure sensor 2, described pressure tubule 8 other ends of giving vent to anger link to each other with described micro-pressure sensor 2, and described blow gun 1 links to each other with described air inlet pipe 4.
With reference to accompanying drawing 2, can accurately measure in the device of vital capacity at this utility model, the model of described micro-pressure sensor is NPC1210, chip LM324A and LM4040 form constant-current source circuit, the in-phase input end of the described micro-pressure sensor NPC1210 of output termination of described chip LM324A, the out-phase input of described micro-pressure sensor NPC1210 is by an adjustable resistance ground connection.The differential amplifier circuit that chip LM324B and LM324C form, two output terminations of described micro-pressure sensor NPC1210 connect the in-phase input end of described chip LM324B and LM324C respectively, the minus earth of described chip LM324B and LM324C, the output termination main frame of described chip LM324B and LM324C, main frame can be handled the result who records and show.
Claims (5)
1, a kind of device that can accurately measure vital capacity, comprise blow gun, it is characterized in that also comprising: the draught head generating means, micro-pressure sensor, constant-current source circuit for this micro-pressure sensor power supply, described blow gun links to each other with described draught head generating means, and described micro-pressure sensor links to each other with described draught head generating means.
2, the device that can accurately measure vital capacity according to claim 1, it is characterized in that: described draught head generating means comprises an air inlet pipe, one escape pipe, described air inlet pipe communicates by a throttling pore with described escape pipe, the vertical air inlet pressure tubule that is equipped with described air inlet pipe, the vertical pressure tubule of giving vent to anger that is equipped with described escape pipe, the described air inlet pressure tubule other end links to each other with described micro-pressure sensor, the described pressure tubule other end of giving vent to anger links to each other with described micro-pressure sensor, and described blow gun links to each other with described air inlet pipe.
3, the device that can accurately measure vital capacity according to claim 1, it is characterized in that: the model of described micro-pressure sensor is NPC1210, described constant-current source circuit is made up of chip LM324A and LM4040, the in-phase input end of the described micro-pressure sensor NPC1210 of output termination of described chip LM324A, the out-phase input of described micro-pressure sensor NPC1210 is by an adjustable resistance ground connection.
4, the device that can accurately measure vital capacity according to claim 1, it is characterized in that: also comprise differential amplifier circuit and the main frame formed by chip LM324B and LM324C, two output terminations of described micro-pressure sensor NPC1210 connect the positive pole of described chip LM324B and LM324C respectively, the minus earth of described chip LM324B and LM324C, the described main frame of output termination of described chip LM324BT and LM324C.
5, the device that can accurately measure vital capacity according to claim 2, it is characterized in that: described air inlet pressure tubule and the described pressure tubule of giving vent to anger are a bend pipe, described air inlet pressure tubule one end is perpendicular to described air inlet pipe, the described micro-pressure sensor of another termination, described bend pipe places described air inlet pipe back, described pressure tubule one end of giving vent to anger is perpendicular to described escape pipe, and the described micro-pressure sensor of another termination, described bend pipe place described escape pipe back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320103032 CN2696542Y (en) | 2003-11-07 | 2003-11-07 | Apparatus capable of accurately measuring lung capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320103032 CN2696542Y (en) | 2003-11-07 | 2003-11-07 | Apparatus capable of accurately measuring lung capacity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2696542Y true CN2696542Y (en) | 2005-05-04 |
Family
ID=34761780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320103032 Expired - Fee Related CN2696542Y (en) | 2003-11-07 | 2003-11-07 | Apparatus capable of accurately measuring lung capacity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2696542Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101318075B (en) * | 2007-06-04 | 2010-10-06 | 慈佑医学科技股份有限公司 | Health care game machine and its use method |
| CN101520384B (en) * | 2009-03-19 | 2011-05-18 | 河南汉威电子股份有限公司 | Method for collecting lung deep gas |
| CN105249969A (en) * | 2015-11-03 | 2016-01-20 | 河海大学 | New type low power consumption electronic measuring instrument for vital capacity |
| CN105395201A (en) * | 2015-12-09 | 2016-03-16 | 上海朔茂网络科技有限公司 | Lung function measurement instrument and measurement method thereof |
| CN109688921A (en) * | 2016-09-03 | 2019-04-26 | 希普拉有限公司 | For measuring the device of patient respiration parameter |
-
2003
- 2003-11-07 CN CN 200320103032 patent/CN2696542Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101318075B (en) * | 2007-06-04 | 2010-10-06 | 慈佑医学科技股份有限公司 | Health care game machine and its use method |
| CN101520384B (en) * | 2009-03-19 | 2011-05-18 | 河南汉威电子股份有限公司 | Method for collecting lung deep gas |
| CN105249969A (en) * | 2015-11-03 | 2016-01-20 | 河海大学 | New type low power consumption electronic measuring instrument for vital capacity |
| CN105395201A (en) * | 2015-12-09 | 2016-03-16 | 上海朔茂网络科技有限公司 | Lung function measurement instrument and measurement method thereof |
| CN109688921A (en) * | 2016-09-03 | 2019-04-26 | 希普拉有限公司 | For measuring the device of patient respiration parameter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050504 Termination date: 20121107 |