CN105737908B - A kind of laser displacement oxygen flow sensor - Google Patents
A kind of laser displacement oxygen flow sensor Download PDFInfo
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- CN105737908B CN105737908B CN201610304250.3A CN201610304250A CN105737908B CN 105737908 B CN105737908 B CN 105737908B CN 201610304250 A CN201610304250 A CN 201610304250A CN 105737908 B CN105737908 B CN 105737908B
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- displacement
- oxygen
- laser
- reflection diaphragm
- photoelectric converter
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
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- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The invention discloses a kind of laser displacement oxygen flow sensors, including being placed in oxygen channel and as oxygen enters mobile displacement-reflection diaphragm, and the laser displacement sensor being fixed on oxygen channel inner wall；The laser displacement sensor includes laser emitter, photoelectric converter, concentration piece 1 in the laser transmitter projects optical path, the concentration piece 2 on the photoelectric converter receiving light path, and the signal processor being connect with the laser emitter and the photoelectric converter；It is an advantage of the current invention that using laser displacement inspecting method can accurate measurement oxygen flow, shown by the flow of patient's oxygen uptake, time, with data such as oxygen total amounts, nurse can monitor in real time with oxygen situation.
Description
Technical field
The invention belongs to laser sensing technical fields, more particularly, to a kind of laser displacement oxygen flow sensor.
Background technique
Oxygen inhalation treatment is supplied with patient's oxygen through improving arterial partial pressure of oxygen (PaO2) and arterial oxygen saturation
(SaO2), increase arterial oxygen content (CaO2), anaerobic condition caused by a variety of causes is corrected, the metabolism of tissue is promoted, is tieed up
Hold a kind for the treatment of method of body vital movement.In clinical position, oxygen therapy is indispensable, though it was found that
Right doctor outputs long term oxygen sucking doctor's advice, and during oxygen uptake, patient is often because there is dry throat, respiratory tract disease
After shape, malaise symptoms are alleviated and considers economic cause and voluntarily stop oxygen uptake.Since hospital uses always float type oxygen
Gas inhalator, nurse are also that 1 hour tour patient is primary, can not find these problems in first time, seriously affect oxygen
The judgement of therapeutic effect, also brings security risk, cannot be found in time again after voluntarily stopping oxygen uptake such as patient, it may appear that serious
Hypoxemia, or even breathing stop；If COPD patient cannot be found in time from oxygen flow height-regulating is about to, it will lead to two
Carbonoxide retention aggravates, and serious person can also cause breathing to stop.
One important symbol of modern medical science progress is quantitative standardization, the digitization of diagnosing and treating.It is obvious that
The oxygen float type oxygen flow meter that hospital uses for a long time does not adapt to, and reason has: 1. because use frequently, failure rate compared with
Height, Weights and Measures Bureau's detection frequency is limited, and nurse is ignorant of the detection technical ability of profession again, virtually will affect the rescue of patient；
2. metering inaccuracy, with the variation of oxygen pressure, changes in flow rate directly affects the effect of patient's oxygen therapy up to 30%；3. flow
Display is not intuitive, and there are human errors, and the execution of oxygen uptake doctor's advice is caused to cannot achieve standardization；4. real-time traffic can only be measured, no
Cumulative amount and oxygen time can be recorded, nurse can only estimate that this was not only wasted time by manual review record, but also inaccurate
Really, it also easily leads to shield and suffers from contradiction, influence patient satisfaction.
Summary of the invention
Object of the present invention is to: provide one kind be not only simple in structure, it is easy to use, and can accurate measurement oxygen flow, it is real
When monitoring use oxygen situation laser displacement oxygen flow sensor.
The technical scheme is that a kind of laser displacement oxygen flow sensor, including be placed in oxygen channel and with
Oxygen enter mobile displacement-reflection diaphragm, and the laser displacement sensor being fixed on oxygen channel inner wall；It is described to swash
Optical displacement sensor includes laser emitter, photoelectric converter, the concentration piece 1 in the laser transmitter projects optical path,
Concentration piece 2 on the photoelectric converter receiving light path, and connect with the laser emitter and the photoelectric converter
The signal processor connect.
The displacement-reflection diaphragm is obliquely installed as a preferred technical solution, and its tilt angle is 15~45 degree.
The laser displacement sensor is located at displacement-reflection diaphragm front side or rear side as a preferred technical solution,.
The laser emitter is semiconductor laser transmitter as a preferred technical solution,.
The photoelectric converter is ccd image sensor as a preferred technical solution,.
Working principle of the present invention is as follows: the laser beam that semiconductor laser transmitter issues focuses on displacement by concentration piece 1
On reflection diaphragm, reflected light is collected by concentration piece 2, is projected on ccd image sensor array after focusing；Signal processor passes through
The light spot position calculated on ccd image sensor array obtains the position away from displacement-reflection diaphragm.When oxygen passes through oxygen channel
When, displacement-reflection diaphragm generates the displacement for being proportional to flow, and the light spot position on that ccd image sensor array becomes
Change, the displacement of this displacement-reflection diaphragm is proportional to the variation of oxygen flow, and signal processor is according to the position of displacement-reflection diaphragm
The flow that displacement is converted into oxygen by variation is set, and is shown by display.
The invention has the advantages that
1. the present invention using laser displacement inspecting method can accurate measurement oxygen flow, by the flow of patient's oxygen uptake, the time,
It is shown with data such as oxygen total amounts, nurse can monitor in real time with oxygen situation.
Detailed description of the invention
The invention will be further described with reference to the accompanying drawings and embodiments:
Fig. 1 is schematic structural view of the invention；
Fig. 2 is schematic structural view of the invention；
Fig. 3 is Fig. 1, in 2 laser displacement sensor schematic diagram of internal structure；
Wherein: 1 oxygen channel, 2 displacement-reflection diaphragms, 3 laser displacement sensors, 31 laser emitters, 32 photoelectric conversions
Device, 33 concentration piece, 1,34 concentration piece, 2,35 signal processor, 4 oxygen.
Specific embodiment
Embodiment: shown in 3, a kind of laser displacement oxygen flow sensor, including be placed in oxygen channel 1
And as oxygen 4 enters mobile displacement-reflection diaphragm 2, and the laser displacement sensor being fixed on 1 inner wall of oxygen channel
3；The laser displacement sensor 3 includes that the laser emitter 31(laser emitter 31 is semiconductor laser transmitter), photoelectricity turns
The parallel operation 32(photoelectric converter 32 is ccd image sensor), emit the concentration piece 133 in optical path set on laser emitter 31,
Concentration piece 234 on 32 receiving light path of photoelectric converter, and connect with laser emitter 31 and photoelectric converter 32
Signal processor 35.
Displacement-reflection diaphragm 2 of the invention is obliquely installed, and its tilt angle is 15~45 degree, while laser displacement senses
Device 3 is located at 2 front side or rear side of displacement-reflection diaphragm.
Working principle of the present invention is as follows: the laser beam that semiconductor laser transmitter issues is focused in place by concentration piece 133
It moves on reflection diaphragm 2, reflected light is collected by concentration piece 234, is projected on ccd image sensor array after focusing；Signal processing
Device 35 obtains the position away from displacement-reflection diaphragm 2 by calculating the light spot position on ccd image sensor array.When oxygen 4 is logical
When crossing oxygen channel 1, displacement-reflection diaphragm 2 generates the displacement for being proportional to flow, the light on that ccd image sensor array
Point position changes, and the displacement of this displacement-reflection diaphragm 2 is proportional to the variation of 4 flow of oxygen, 35 basis of signal processor
Displacement is converted into the flow of oxygen 4 by the change in location of displacement-reflection diaphragm 2, and is shown by display.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (4)
1. a kind of laser displacement oxygen flow sensor, which is characterized in that including being placed in oxygen channel (1) and with oxygen
(4) enter mobile displacement-reflection diaphragm (2), and the laser displacement sensor (3) being fixed on oxygen channel (1) inner wall；
The laser displacement sensor (3) includes laser emitter (31), and photoelectric converter (32) is set to the laser emitter (31)
Emit the concentration piece 1 (33) in optical path, the concentration piece 2 (34) being set on the photoelectric converter (32) receiving light path, Yi Jiyu
The signal processor (35) of the laser emitter (31) and the photoelectric converter (32) connection；The displacement-reflection diaphragm
(2) it is obliquely installed, and its tilt angle is 15~45 degree；The laser beam that semiconductor laser transmitter issues is by concentration piece 1 (33)
It focuses on displacement-reflection diaphragm (2), reflected light is collected by concentration piece 2 (34), and ccd image sensor array is projected after focusing
On；Signal processor (35) is obtained by calculating the light spot position on ccd image sensor array away from displacement-reflection diaphragm (2)
Position；When oxygen (4) pass through oxygen channel (1), displacement-reflection diaphragm (2) generates the displacement for being proportional to flow, that CCD
Light spot position on image sensor array changes, and the displacement of this displacement-reflection diaphragm (2) is proportional to oxygen (4) flow
Variation, displacement is converted into the stream of oxygen (4) according to the change in location of displacement-reflection diaphragm (2) by signal processor (35)
Amount, and shown by display.
2. laser displacement oxygen flow sensor according to claim 1, which is characterized in that the laser displacement sensor
(3) it is located at displacement-reflection diaphragm (2) front side or rear side.
3. laser displacement oxygen flow sensor according to claim 1, which is characterized in that the laser emitter (31)
For semiconductor laser transmitter.
4. laser displacement oxygen flow sensor according to claim 1, which is characterized in that the photoelectric converter (32)
For ccd image sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610304250.3A CN105737908B (en) | 2016-05-10 | 2016-05-10 | A kind of laser displacement oxygen flow sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610304250.3A CN105737908B (en) | 2016-05-10 | 2016-05-10 | A kind of laser displacement oxygen flow sensor |
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| Publication Number | Publication Date |
|---|---|
| CN105737908A CN105737908A (en) | 2016-07-06 |
| CN105737908B true CN105737908B (en) | 2019-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610304250.3A Active CN105737908B (en) | 2016-05-10 | 2016-05-10 | A kind of laser displacement oxygen flow sensor |
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| Country | Link |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1490599A (en) * | 2003-09-06 | 2004-04-21 | 争 李 | Oxygen flowmeter |
| CN201803744U (en) * | 2010-09-14 | 2011-04-20 | 周三连 | Wireless network digital display oxygen flowmeter |
| CN104764500A (en) * | 2015-04-09 | 2015-07-08 | 中国石油大学(北京) | Laser micro-flow metering instrument |
| CN205593571U (en) * | 2016-05-10 | 2016-09-21 | 南通市第一人民医院 | Laser displacement oxygen flow sensor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130060492A1 (en) * | 2011-09-06 | 2013-03-07 | Techox Industries Ind. | Method of deducing time based metrics using flow rate |
-
2016
- 2016-05-10 CN CN201610304250.3A patent/CN105737908B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1490599A (en) * | 2003-09-06 | 2004-04-21 | 争 李 | Oxygen flowmeter |
| CN201803744U (en) * | 2010-09-14 | 2011-04-20 | 周三连 | Wireless network digital display oxygen flowmeter |
| CN104764500A (en) * | 2015-04-09 | 2015-07-08 | 中国石油大学(北京) | Laser micro-flow metering instrument |
| CN205593571U (en) * | 2016-05-10 | 2016-09-21 | 南通市第一人民医院 | Laser displacement oxygen flow sensor |
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| Publication number | Publication date |
|---|---|
| CN105737908A (en) | 2016-07-06 |
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Effective date of registration: 20210409 Address after: No. 52 Yingang Road, Taicang Port Economic and Technological Development Zone, Suzhou City, Jiangsu Province Patentee after: SUZHOU BOTA MEDICAL TECHNOLOGY Co.,Ltd. Address before: 226000 No.6, haierxiang North Road, Nantong City, Jiangsu Province Patentee before: Nantong First People's Hospital |