CN105651741B - Laser gas analysis device - Google Patents
Laser gas analysis device Download PDFInfo
- Publication number
- CN105651741B CN105651741B CN201510665721.9A CN201510665721A CN105651741B CN 105651741 B CN105651741 B CN 105651741B CN 201510665721 A CN201510665721 A CN 201510665721A CN 105651741 B CN105651741 B CN 105651741B
- Authority
- CN
- China
- Prior art keywords
- laser
- transmittance
- optical
- transmitting set
- gas
- 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.)
- Active
Links
Abstract
The invention discloses a kind of laser gas analysis device, which includes：Optical transmitting set emits the laser being irradiated on gas to be measured；Optical receiver, the laser to penetrating gas to be measured receive；Multiple optical axises adjust mechanical device, one of them is arranged in optical transmitting set, and therein another is arranged in optical receiver；Basic display unit is arranged in one of optical transmitting set and optical receiver, and the measurement result that display obtains by reception penetrates the laser of gas to be measured on it；And sub-display, it is arranged in another in optical transmitting set and optical receiver, and a part for measurement result shown on basic display unit is shown on it.
Description
Cross reference to related applications
This application claims the Japanese patent application No.2014-243132 submitted on December 1st, 2014 and in 2015
The priority for the Japanese patent application No.2015-139847 that July 13 submitted, the content of the application are incorporated by reference
Herein.
Technical field
The embodiment of the present invention is related to laser gas analysis device.
Background technology
Laser gas analysis device is such a device, by laser irradiation to gas to be measured, and based on wearing
The absorption spectrum of the laser of saturating gas to be measured to included in gas to be measured ingredient and its concentration etc. measure.
The laser gas analysis device is configured as the light for generally including to emit the laser for being irradiated on gas to be measured
Transmitter and the optical receiver that the laser for penetrating gas to be measured is received.This laser gas analysis device is usually pacified
Dress is facing with each other to make optical transmitting set and optical receiver, while having the smoke pipe between being arranged in them.It is treated by smoke pipe
The gas of measurement guides.
Optical axis adjustment mechanical device is arranged in the optical transmitting set and optical receiver of laser gas analysis device, it is to be used for light
The mechanical device of axial adjustment, and execute light when periodically or non-periodically safeguarding and when installing laser gas analysis device
Optical axis adjustment between transmitter and optical receiver.This is because when between the optical axis and the optical axis of optical receiver of optical transmitting set
When in the presence of deviateing, the light quantity of the laser received in optical receiver is reduced, so that measurement accuracy reduces.
The optical axis adjustment between the optical transmitting set and optical receiver of laser gas analysis device is executed generally according to following procedure：
(1) optical axis of adjustment optical transmitting set is so that the transmittance of laser is maximum；
(2) optical axis of adjustment optical receiver is so that the transmittance of laser is maximum；And
(3) optical axis of adjustment optical transmitting set is so that the transmittance of laser is maximum.
One that the laser gas analysis device that can adjust optical axis in a wide range is disclosed in JP2010-096631A shows
Example.
In the laser gas analysis device of the prior art, computing device to the ingredient that is included in gas to be measured and its
Concentration etc. is calculated；And show the result of calculation or measurement result of computing device.Therefore, worker can be at it to display
Oneself executes the optical axis of the optical transmitting set of above procedure (1) and (3) while the transmittance of perhaps laser is checked in display
Adjustment.However, worker oneself is difficult to carry out the optical axis adjustment of the optical receiver described in procedure above (2), this is because work
People can not pass through the transmittance of visual inspection laser.
Therefore, currently, executing the worker of the worker and the optical axis adjustment for executing optical receiver of the optical axis adjustment of optical transmitting set
Arrange in pairs or groups work, and when execute optical receiver optical axis adjustment when, using communication device (such as transceiver, mobile phone,
PHS or personal handyphone system etc.) transmit display display content while execute optical receiver optical axis adjust.This
Sample, what the optical axis between optical transmitting set and optical receiver due at least needing two workers' execution laser gas analysis devices adjusted
It is true so that current efficiency is very low.
In addition, when the diameter of smoke pipe along the optical transmitting set of laser gas analysis device and optical receiver reaches tens meters,
Optical axis all can be such that the transmittance of laser is substantially reduced the case where there are small deviations.In this case, although utilizing communication
It is adjusted not by executing the method for optical axis adjustment to execute the optical axis of optical receiver while device transmits display contents
May, but relative to the method for executing optical axis adjustment while the content of worker's visual inspection display, task efficiency is then
It is essentially decreased.
Invention content
In view of the foregoing, a purpose of the embodiment of the present invention is to provide a kind of laser gas analysis device, can be with
So that a worker can effectively oneself execute optical axis adjustment.
According to an embodiment of the invention, a kind of laser gas analysis device is provided, including：Optical transmitting set, to being irradiated to
Laser on gas to be measured is emitted；Optical receiver, the laser to penetrating gas to be measured receive；Multiple optical axises
Mechanical device is adjusted, one of them is arranged in the optical transmitting set, and therein another is arranged in the optical receiver
In；Basic display unit is arranged in one of the optical transmitting set and the optical receiver, and display is worn by receiving on it
The laser of saturating gas to be measured and the measurement result obtained；And sub-display, it is arranged in the optical transmitting set and the light
In another in receiver, and a part for measurement result shown on basic display unit is shown on it.
In addition, in laser gas analysis device according to an embodiment of the invention, the basic display unit is at least shown on it
Show the information of the transmittance of the concentration and laser for indicating gas to be measured, and the sub-display is shown for indicating sharp
A part of the information of the transmittance of light as measurement result.
In addition, laser gas analysis device according to an embodiment of the invention further includes computing device, it is arranged in the light
In one of transmitter and optical receiver, and utilize the light receiving signal obtained by penetrating the laser of gas to be measured by receiving
To calculate measurement result.
In addition, in laser gas analysis device according to an embodiment of the invention, the basic display unit and calculating dress
It installs in optical receiver, and the sub-display is arranged in the optical transmitting set.
In addition, laser gas analysis device according to an embodiment of the invention further includes being stored with depositing for laser transmittance threshold value
Reservoir, wherein the basic display unit and the sub-display are when the transmittance of laser is no more than the threshold value and the transmission of laser
A part for the measurement result and the measurement result is shown when than more than the threshold value in different modalities.
In addition, laser gas analysis device according to an embodiment of the invention further includes leading-out terminal, exported not in outside
With signal, the signal laser transmittance be no more than the threshold value when and laser transmittance be more than the threshold value when not
Together.
In addition, in laser gas analysis device according to an embodiment of the invention, in the basic display unit and sub-display
It is at least one for each calculating cycle of the computing device come change it is described display content at least part.
In addition, in laser gas analysis device according to an embodiment of the invention, for each meter of the computing device
Calculate period luminous light-emitting component be included in the optical transmitting set and the optical receiver it is at least one in.
According to an embodiment of the invention, a kind of laser gas analysis device is provided comprising：Optical transmitting set, to irradiation
Laser on to gas to be measured is emitted；Optical receiver, the laser to penetrating gas to be measured receive；Multiple light
Axial adjustment mechanical device, one of them is arranged in the optical transmitting set, and therein another is arranged in the light-receiving
In device；Basic display unit is arranged in the optical receiver, and display penetrates swashing for gas to be measured by receiving on it
Light and the measurement result obtained；Sub-display is arranged in the optical transmitting set, and on it to being shown on basic display unit
A part for the measurement result shown is shown；Computing device is arranged in the optical receiver, and utilizes and pass through reception
The light receiving signal for penetrating the laser of gas to be measured and obtaining to execute calculating, calculated measurement knot to the measurement result
Fruit includes the transmittance of laser；And memory, the threshold value of the transmittance of laser is stored, wherein the computing device is to storage
The threshold value stored in device is compared with the transmittance of the laser obtained using light receiving signal, determines that the transmittance of laser is
No is more than stored threshold value, and makes measurement result with the first mould when the transmittance of laser is no more than stored threshold value
Formula is shown on the basic display unit, and makes measurement result with second when the transmittance of laser is more than stored threshold value
Pattern is shown on the basic display unit, and the first mode and the second mode are different from each other.
In addition, in laser gas analysis device according to an embodiment of the invention, deposited when the transmittance of laser is no more than
When the threshold value of storage, the computing device also makes measurement result be shown in a third mode on the sub-display, and when sharp
When the transmittance of light is more than stored threshold value, the computing device makes measurement result be shown in the son with fourth mode and show
Show on device, and the third mode and the fourth mode are different from each other.
According to an embodiment of the invention, measurement of the basic display unit to being obtained by reception penetrates the laser of gas to be measured
As a result it is shown, is arranged on one of optical transmitting set and optical receiver, and sub-display on the basic display unit to showing
A part for the measurement result shown is shown, is arranged on another in optical transmitting set and optical receiver, so as to make
It obtains a worker and efficiently performs optical axis adjustment.
Description of the drawings
Fig. 1 is the diagram for the illustrative arrangement for showing laser gas analysis device according to an embodiment of the invention；
Fig. 2 is the optical axis adjustment machinery for showing to be arranged in laser gas analysis device according to an embodiment of the invention
The perspective view of device；
Fig. 3 is the aobvious of the basic display unit for showing to be arranged in laser gas analysis device according to an embodiment of the invention
Show an exemplary diagram of content；
Fig. 4 is the aobvious of the sub-display for showing to be arranged in laser gas analysis device according to an embodiment of the invention
Show an exemplary diagram of content；
Fig. 5 is the block diagram for the electricity configuration for showing laser gas analysis device according to an embodiment of the invention；
Fig. 6 is the flow for the optical axis adjustment programme for showing laser gas analysis device 1 according to an embodiment of the invention
Figure；
Fig. 7 A and Fig. 7 B are show update cycle in sub-display according to an embodiment of the invention exemplary
The diagram of report；
Fig. 8 A and Fig. 8 B are to show that one of update cycle in basic display unit according to an embodiment of the invention is shown
The diagram of example property report；
Fig. 9 is the another exemplary report for showing the update cycle in sub-display according to an embodiment of the invention
Diagram；And
Figure 10 is the another exemplary report for showing the update cycle in basic display unit according to an embodiment of the invention
The diagram of announcement.
Specific implementation mode
Describe laser gas analysis device according to an embodiment of the invention with reference to the accompanying drawings.Fig. 1 is shown according to this hair
The diagram of the illustrative arrangement of the laser gas analysis device of bright one embodiment.As shown in Figure 1, swashing according to present example
Light gas analyser 1 includes optical transmitting set 10 and optical receiver 20, and optical transmitting set 10 and optical receiver 20 are installed so that them
It is facing with each other, while the gas X to be measured smoke pipes guided or pipeline P are arranged between them, laser gas analysis device 1
By laser irradiation on the gas X to be measured that pipeline P flows, and based on the absorption spectrum for the laser for penetrating gas to be measured
To be measured to ingredient and its concentration etc. that are included in gas X to be measured.
Optical transmitting set 10 is mounted to the fixed flange F1 for being formed in the branch pipe B1 on the side wall of pipeline P, it is to exposing to
The laser flowed through on the gas X to be measured of pipeline P is emitted.Inside quilt of the laser through branch pipe B1 emitted from optical transmitting set 10
It guides to pipeline P.The optical transmitting set 10 includes optical transmitting set main body 10a and optical axis adjustment mechanical device 10b.
Optical transmitting set main body 10a contains the optical element (not shown) of collimation lens etc., such as semiconductor laser
The light-emitting component (not shown) of device etc., it emits exposing to the laser on the gas X to be measured for flowing through pipeline P.In addition,
The sub-display D2 that will be described in detail hereinafter is arranged in optical transmitting set main body 10a.Optical axis adjusts mechanical device 10b
It is the mechanical device of the optical axis for adjusting optical transmitting set 10.
The installation of optical receiver 20 (or is formed as being arranged in branch pipe B1 to the branch pipe B2 being formed on the side wall of pipeline P
Branch pipe on same straight line) fixed flange F2, optical receiver 20 is to penetrating the laser in the gas X to be measured of pipeline P flowing
It is received to determine absorption spectrum, and based on the absorption spectrum to the ingredient and its concentration included in gas X to be measured
It measures.The laser of gas X to be measured is penetrated through being directed to optical receiver 20 inside branch pipe B2.The optical receiver 20 includes
Optical receiver main body 20a and optical axis adjustment mechanical device 20b.
Optical receiver main body 20a contains the optical element (not shown) of convergent lens etc., such as photodiode
Deng light receiving element (not shown), it receives the laser for penetrating gas X to be measured and is measured included in be measured
Measure ingredient and its concentration etc. in gas X.Optical axis adjustment mechanical device 20b is the machinery of the optical axis for adjusting optical receiver 20
Device.
Fig. 2 is the optical axis adjustment machinery for showing to be arranged in laser gas analysis device according to an embodiment of the invention
The perspective view of device.The light that the optical axis being arranged in optical transmitting set 10 adjusts mechanical device 10b and is arranged in optical receiver 20
Axial adjustment mechanical device 20b indicates same mechanical device, therefore the adjustment machinery dress of the optical axis to being arranged in optical transmitting set 10
10b is set to illustrate.As shown in Fig. 2, optical axis adjustment mechanical device 10b includes mounting flange 10c, mounting flange 10d and adjustment
Device 10e.Mounting flange 10c is to be installed to the flange on fixed flange F1 for optical axis to be adjusted mechanical device 10b, and install convex
Edge 10d is for installing optical transmitting set main body 10a to the flange on optical axis adjustment mechanical device 10b.Adjuster 10e includes wave
Line pipe BL and four adjustment screw N.
Bellows BL as flexible cylinder shape pipe is arranged to：It is set to cover the periphery of optical path or mounting flange
The optical path of laser between 10c and mounting flange 10d.More specifically, bellows BL is installed to mounting flange 10c, from
And make one end be centered around the central part for being formed in mounting flange 10c hole (not shown) entire periphery, and its other end
It is centered around the entire periphery of the hole (not shown) for the central part for being formed in mounting flange 10d.
Adjustment screw N is for making mounting flange 10c and mounting flange 10d couplings and being carried out to the optical axis of optical transmitting set 10
The screw rod of adjustment is circumferentially disposed at equal intervals in the exterior circumference avris of bellows BL.Adjustable this four tune
The rotation amount of one or more of whole screw rod N with to optical transmitting set main body 10a gradient or relative to flat with fixed flange F1
The gradient in capable face carries out arbitrary adjustment.
Fig. 3 is the aobvious of the basic display unit for showing to be arranged in laser gas analysis device according to an embodiment of the invention
Show an exemplary diagram of content.The basic display unit D1 being arranged in optical receiver 20 be such as liquid crystal display or LCD,
It shows multiple measurement results (or concentration of gas X to be measured) and by being connect to the laser for penetrating gas X to be measured
The transmittance of receipts and the laser of acquisition.
In the example depicted in fig. 3, the concentration " O by " 10.0% " as gas X to be measured2" display, by " 94.8% "
Transmittance " Trans " as the laser is shown, and the temperature by " 89.71 DEG C " as gas X to be measured
" TempActA " is shown.In addition, display " Laser Curr Low " or instruction are supplied to the light-emitting component of semiconductor laser
The very littles such as the electric current serial number " SN " of " FLT " and display " XXXXXXXX " as laser gas analysis device 1 by way of caution.Except this
Except a little, the information such as measurement range for indicating measuring condition can be shown.In addition, relative to the aobvious of the warning
Show, can the lamp of separation be set on the periphery of basic display unit D1, and can show the generation of warning by opening lamp.
Fig. 4 is the aobvious of the sub-display for showing to be arranged in laser gas analysis device according to an embodiment of the invention
Show an exemplary diagram of content.The sub-display D2 being arranged in the optical transmitting set main body 10a of optical transmitting set 10 is such as 7
Section LED or light emitting diode, a part for the measurement result to being shown on basic display unit D1 are shown.It is shown in Fig. 4
In example, it is shown that the transmittance " 94.8 " of the laser shown on basic display unit D1.
Basic display unit D1 shown in Fig. 3 needs to show to be obtained by being received to the laser for penetrating gas X to be measured
Multiple measurement results, warning etc., thereby using the display of liquid crystal display etc..On the other hand, sub-display D2 bases
Only used when the optical axis of optical transmitting set 10 adjusts in sheet, and its meet a part for the display content of basic display unit D1 (or
The transmittance of shown laser in the example depicted in fig. 4) needs, thereby using the display of 7 sections of light-emitting diode displays etc.
Device is to reduce cost.
Fig. 5 is the block diagram for the electricity configuration for showing laser gas analysis device according to an embodiment of the invention.Such as Fig. 5 institutes
Show, in addition to above-mentioned sub-display D2, the optical transmitting set 10 of laser gas analysis device 1 includes light emitting module 11, input 12 and control
Device 13 processed.In addition, the optical receiver 20 of laser gas analysis device 1 includes optical receiver module 21, computing controller 22 or calculating dress
It sets, memory 23, export 24 and leading-out terminal 25.
Light-emitting component of the light emitting module 11 including semiconductor laser etc., emitting under the control of controller 13 will
The laser L being irradiated on the gas X to be measured flowed in pipeline P.It is sent out from light emitting module 11 according to gas X to be measured settings
The wavelength of the laser L penetrated.Input 12 is connected to the output 24 being arranged in optical receiver 20 through cable CB, and obtains transmittance
Signal or for indicate from output 24 output laser L transmittance signal, by the transmittance signal inputted export to
Controller 13.
Controller 13 controls light emitting module 11, so that laser L is irradiated on gas X to be measured to be penetrated.More
Specifically, based on to the testing result of the electric current flowed in the light-emitting component in light emitting module 11 is arranged or from light emitting module
The testing result of the laser L of 11 transmittings, controller 13 are controlled such that light emitting module 11 intensity constant of laser L, and
Perform control to inswept specific wavelength area.In addition, controller 13 executes sub-display based on the transmittance signal from input 12
The drive control of D2, and the transmittance of the laser L indicated by transmittance signal is shown on sub-display D2.
Light receiving element of the optical receiver module 21 including photodiode etc., to being obtained by receiving laser L
Light receiving signal received, the light receiving signal got is exported to computing controller 22.22 profit of computing controller
The absorption spectrum of used laser L is determined with the light receiving signal from optical receiver module 21, and is based on the absorption
Spectrum to included in gas X to be measured ingredient and its concentration, the transmittance of laser L, the temperature of gas X to be measured etc. into
Row measures.In addition, computing controller 22 executes the drive control of basic display unit D1, and make multiple surveys of gas X to be measured
It is aobvious to measure result or ingredient included in gas X to be measured and its concentration, the transmittance of laser L, temperature of gas X to be measured etc.
Show on basic display unit D1.
In addition, computing controller 22 connects the light of threshold value and utilization from optical receiver module 21 stored in memory 23
The transmittance of the laser L of the collection of letters number and acquisition is compared, and when the transmittance of laser L is no more than threshold value and in laser L
Transmittance be more than threshold value when so that measurement result is shown according to different mode on basic display unit D1.For example, when laser L's
When transmittance is no more than threshold value, the entire viewing area of basic display unit D1 is set as normally showing, to make letter on a dark background
It is shown as white, and when the transmittance of laser L is more than threshold value, the half of the viewing area of basic display unit D1 is (for example, following one
Half) it is set as showing on the contrary, to make letter be shown as black in white background.This display is so that execute optical receiver 20
The worker of optical axis adjustment can easily grasp the adjustment degree of optical axis.
When the transmittance of laser L is no more than threshold value and when the transmittance of laser L is more than threshold value, computing controller 22 makes
A part for the transmittance or measurement result that obtain laser L is also shown according to different mode on sub-display D2.For example, working as laser
The transmittance of L makes measurement result be shown in a manner of flickering display on sub-display D2 when being no more than threshold value, and when sharp
The transmittance of light L is shown in sub-display D2 in a manner of when being more than threshold value measurement result being shown by luminescence display or normally
On.This display is executed for the worker for the optical axis adjustment for executing optical transmitting set 10, easily to grasp the adjustment degree of optical axis.
In addition, when the transmittance of laser L is more than threshold value and when the transmittance of laser L is no more than threshold value, control is calculated
Device 22 is so that export different signals from leading-out terminal 25.For example, when the transmittance of laser L is no more than threshold value, from output end
Son 25 exports the signal of the rather low-frequency rate in audio-band, and when the transmittance of laser L is more than threshold value, from leading-out terminal
The signal of relative high frequency in 25 output audio-bands.Worker can be directed to and execute this output, so that in such as output end
Son 25 is connected to the adjustment degree that worker when loud speaker grasps optical axis by the sense of hearing.
Memory 23 is the non-of flash ROM (or read-only memory), EEPROM (or electrically erasable ROM) etc.
The above-mentioned threshold value used when optical axis adjusts is stored therein in volatile memory.Here, the threshold value can be set to appointing
Meaning value.For example, when meeting rough when needing of transmittance determined by threshold value, the value of setting about " 50% ", for example, must when having
When being checked the adjustment of high-precision optical axis using threshold value, such as the value of about " 90% " is set.In addition, can be the threshold value
Single value is set, or can be that multiple values are arranged in threshold value.When multiple values are arranged, when being more than every time corresponding threshold value, it is expected that changing
Become the display of basic display unit D1 and sub-display D2, or changes the signal exported from leading-out terminal 25.
Output 24 is connected to the input 12 of optical transmitting set 10 through cable CB, and output is for indicating in computing controller 22 really
The transmittance signal of fixed laser L transmittances.The transmittance signal as digital signal emits through cable CB to optical transmitting set
10 without affected by noise.Leading-out terminal 25 is the terminal for for example meeting explosion-proof criteria, is set as in outside output or transmitting
The measurement result of computing controller 22.The leading-out terminal 25 is also used for the above-mentioned signal in output audio-band.
Here, it is for dropping the reason in optical receiver 20 to be arranged in the basic display unit D1 that can show multiple measurement results
The influence of low noise and raising signal processing efficiency.In other words, basic display unit D1 is arranged in the light equipped with computing controller 22
In receiver 20, to eliminate the needs calculated being superimposed noisy signal thereon such as in the prior art, to carry
High RST treatment effeciency, in addition, reducing the influence of noise on light receiving signal by ensuring that noise is not superimposed upon as far as possible.
In addition, by being shown to the transmittance of laser L shown in a part for measurement result or basic display unit D1
Sub-display D2 the reason in optical transmitting set 10 is arranged is that worker oneself is allow to efficiently perform optical transmitting set 10
Optical axis adjusts.The optical axis adjustment for adjusting to control laser gas analysis device 1 by the optical axis of optical transmitting set 10.In other words, unless
The optical axis adjustment of optical transmitting set 10 is executed to a certain extent, and the otherwise optical axis adjustment of optical receiver 20 becomes meaningless.In this way,
In order to oneself efficiently perform the optical axis adjustment for the optical transmitting set 10 that will be controlled, sub-display D2 is arranged in optical receiver 10
In.
Describe the method being adjusted to the optical axis of laser gas analysis device 1 in above-mentioned configuration.Fig. 6 is to show basis
The flow chart of the optical axis adjustment programme of the laser gas analysis device 1 of one embodiment of the present of invention.In installation laser gas analysis
When device 1 or in the periodically or non-periodically maintenance of laser gas analysis device 1, laser gas analysis is executed by a worker
The optical axis of device 1 adjusts.
When task starts, first, worker accesses the installation site of optical transmitting set 10, to execute with reference in sub-display D2
The transmittance of the laser L of display adjusts the task (program S11) of the optical axis of optical transmitting set 10.More specifically, executing to setting
The task that the adjustment screw N of optical axis adjustment mechanical device in optical transmitting set 10 is adjusted (see Fig. 2), to Fig. 3
Shown in basic display unit D1 display in the transmittance of perhaps laser L make the transmittance of laser L maximum while checked.
While executing the task, determine whether the transmittance of laser L reaches maximum (program S12) by worker.If
Worker determines that the transmittance of laser L is not maximum, or when the definitive result of program S11 is "No", adjusts optical transmitting set
Optical axis 10 task continue (program S11).
On the other hand, if worker determines that the transmittance of laser L is maximum, or when the definitive result of program S12 is
When "Yes", worker accesses the installation site of optical receiver 20 and executes the transmittance with reference to the laser L shown on basic display unit D1
Come adjust optical receiver 20 optical axis task (program S13).More specifically, executing to the optical axis in optical receiver 20 is arranged
The task that the adjustment screw N of adjustment mechanical device is adjusted, in the display content to sub-display D2 shown in Fig. 4
The transmittance of laser L so that the transmittance of laser L is maximum while inspection.
While executing the task, determine whether the transmittance of laser L is maximum (program S14) by worker.If worker
It determines that the transmittance of laser L is not maximum, or when the definitive result of program S14 is "No", adjusts the optical axis 20 of optical receiver
Task continue (program S13).
On the other hand, if the laser transmittance of worker's determination is maximum, or when the definitive result of program S14 is "Yes"
When, worker accesses the installation site of optical transmitting set 10 again, to execute the transmittance with reference to the laser L shown in sub-display D2
Come adjust optical transmitting set 10 optical axis task (program S15).While executing the task, determine that laser L's is saturating by worker
Penetrate than whether maximum (program S16).If worker determines that the transmittance of laser L is not maximum, or determines knot as program S16
When fruit is "Yes", a series of tasks shown in fig. 6 are completed.
As described above, according to present example, basic display unit is set in the optical receiver 20 of laser gas analysis device 1
D1 shows the measurement result obtained by being received to the laser L for penetrating gas X to be measured, and in laser gas
Sub-display D2 is set in the optical transmitting set 10 of analyzer 1, to the part of the measurement result shown on basic display unit D1 into
Row display.Therefore, worker can refer to the display content for the sub-display D2 being arranged in optical transmitting set 10, oneself is efficiently performed
The optical axis of optical transmitting set 10 adjusts, and can also the display content of basic display unit D1 that is arranged in optical receiver 20 of reference,
Oneself efficiently perform optical axis adjustment.
Here, in the computing controller 22 of laser gas analysis device 1, in order to improve S/N or signal-to-noise ratio, a kind of place is executed
Reason, is averaged with the absorption spectrum to the laser L in the specific time period such as in about several seconds to tens seconds, and
Based on carry out it is average after absorption spectrum to included in gas X to be measured ingredient and its concentration etc. measure.Therefore, needle
Each in the above-mentioned specific time period of computing controller 22 or calculating cycle is come to basic display unit D1 and sub-display
The display content of D2 is updated.The calculating cycle of computing controller 22 changes according to gas X to be measured and measuring environment, from
And it also changes to the time cycle (or update cycle) that the display content of basic display unit D1 and sub-display D2 is updated.
When the measurement result or transmittance that are shown on such as basic display unit D1 or sub-display D2 change, it may be to know that
The fact that have reached the update cycle；However, unless measurement result change, otherwise can be unaware of the fact that have reached the update cycle.
For example, adjusting the final inspection whether completed in the intense adjustment or execution optical axis for executing optical axis to obtain the same of stable transmittance
When, the case where measurement result for often occurring showing on basic display unit D1 or sub-display D2 does not often change.Therefore, it can incite somebody to action
The above-mentioned update cycle reports to worker.
Fig. 7 A and Fig. 7 B are the examples for showing the update cycle according to an embodiment of the invention in sub-display
Property report diagram.Sub-display D2 sub-display D2 as shown in fig. 4 shown in Fig. 7 A and Fig. 7 B are identical, are such as 7 sections
Light-emitting diode display.In the example shown in Fig. 7 A and Fig. 7 B, the transmittance " 92.0 " of laser is shown.Showing the saturating of laser
Penetrate than sub-display D2 in, do not use rightmost decimal point PT1.Therefore, based on the letter for example from computing controller 22
Number, alternately executed for each update cycle make decimal point PT open (see Fig. 7 A) display and make decimal point PT close (see
Fig. 7 B) display or switching between the two show, this can to the workers report update cycle without increase cost.
Fig. 8 A and Fig. 8 B are show update cycle in basic display unit according to an embodiment of the invention exemplary
The diagram of report.The basic display unit D1 of basic display unit D1 as shown in figure 3 shown in Fig. 8 A and Fig. 8 B are identical, are such as liquid crystal
Show device.In the example shown in Fig. 8 A and Fig. 8 B, the concentration " O by " 20.50% " as gas X to be measured2" display, and will
" 98.3% " is shown as the transmittance " Trans " of laser.In addition, by " 17:52 " is aobvious as time of measuring " Measuring "
Show, and by " IP:192.168.1.10 " IP address as laser gas analysis device 1 is shown.In addition, showing shown in Fig. 8 A
In example, show that " 101.33kPa " is used as pressure in the third line L3 or in a line after the first row L1 and the second row L2
The measurement result of " Pres AI1 " shows the concentration " O of gas X to be measured on the first row L12", it shows and swashs on the second row L2
The transmittance " Trans " of light, and in the example shown in Fig. 8 B, show " 25.6 DEG C " as the temperature measured on the third line L3
Spend result " Temp AI2 ".
In it can carry out the basic display unit D1 of above-mentioned display, in addition to the transmittance " Trans " of laser, multiple measurements are shown
As a result etc..Therefore, the alternating that the measurement result in addition to the transmittance " Trans " of laser can be carried out for each update cycle is aobvious
Show or switch display, will report the update cycle to worker without increasing cost.For example, for each update cycle, scheming
Shown in the display (or display is for indicating the pressure result " Pres AI1 " that measures) of the third line L3 shown in 8A and Fig. 8 B
Alternately switching is carried out between the display (or display is for indicating the temperature results " Temp AI2 " measured) of the third line L3.Even if
The value of the value of concentration on the first row L1 and the transmittance on the second row L2 does not change, and can also carry out this display so that work
People knows the update cycle according to the variation of the display on the third line L3.
Fig. 9 is the another exemplary report for showing the update cycle in sub-display according to an embodiment of the invention
Diagram.In example in fig.9, the situation near sub-display D2 is set in light-emitting component Q1 (such as LED element etc.)
Under, the luminous operation of switching is executed, alternately to be executed to each update cycle based on the signal pin from computing controller 22
The closing of the unlatching and light-emitting component Q1 of light-emitting component Q1.In the example depicted in fig. 9, while it is desirable to light-emitting component Q1 is provided,
But it can will report to worker without significantly improving cost the update cycle.
Figure 10 is the another exemplary report for showing the update cycle in basic display unit according to an embodiment of the invention
The diagram of announcement.In the example depicted in fig. 10, the light-emitting component Q11-Q13 being arranged in for basic display unit D1 is luminous to be arranged
In the case of element Q14, the luminous operation of switching is executed, in terms of being based on coming from according to mode identical with example shown in Fig. 9
It calculates the signal of controller 22 and alternately executes unlatching and the light-emitting component Q14 of light-emitting component Q14 for each update cycle
It closes.The light-emitting component Q11-Q13 being arranged near basic display unit D1 is arranged to the state of instruction laser gas analysis device 1
Light-emitting component (such as LED etc.).For example, light-emitting component Q11 refers to the orange luminescence element of report (DO) of warning, light-emitting component Q12
It is the red light-emitting component of instruction wrong (FAULT), and light-emitting component Q13 is the green hair that power supply (POWER) is opened in instruction
Optical element.It, can although needing light-emitting component Q14 according to mode identical with Fig. 9 being arranged in the example depicted in fig. 10
It will report to worker without obviously increasing cost update cycle.
It can will be reported update cycle to worker according to the method illustrated using Fig. 7-Figure 10, so that worker passes through to having reported
The update cycle of announcement is checked and accurately carries out task, is become without grasping corresponding laser gas analysis device 1
The update cycle of change.In this way, the task efficiency and precision of the optical axis adjustment in laser gas analysis device 1 can be improved.
Although described above is display according to an embodiment of the invention, the present invention is not limited to above-mentioned implementations
Example, and can freely change within the scope of the invention.For example, although basic display unit D1 and son are shown in the above-described embodiments
Whether the display content of device 2 changes more than the threshold value stored in memory 23 according to the transmittance of laser L, but can be right
How the transmittance of laser L, which changes, is analyzed, to show the direction of emergent shaft adjustment using arrow.
In addition, in the above-described embodiments, describing such example, held wherein with reference to the display content of sub-display D2
The optical axis adjustment of row optical transmitting set 10 and the display content based on basic display unit D1 execute the optical axis adjustment of optical receiver 20.So
And loud speaker can be connected to leading-out terminal 25 shown in fig. 5, and the sound that is sent out from loud speaker is can refer to execute light emitting
The optical axis of device 10 and optical receiver 20 adjusts.In addition, the calculating for indicating computing controller 22 can be exported from leading-out terminal 25
The signal in period or update cycle, and can be by acoustic notifications update cycle for being sent out from loud speaker.
In addition, in the above-described embodiments, describing a kind of configuration, make computing controller 22 and basic display unit D1 settings
In optical receiver 20 and sub-display D2 is arranged in optical receiver 10.However, opposite to that, computing controller 22 and master
Display D1 may be provided in optical transmitting set 10, and sub-display D2 may be provided in optical receiver 20.With this configuration,
It needs the light receiving signal obtained in the optical receiver module 21 of optical receiver 20 being transferred to optical transmitting set 10, so as to cause anti-
Only noise is mixed into the demand in light receiving signal.
In addition, such example is described in the above-described embodiments, in basic display unit D1 and sub-display D2 (see Fig. 7
And Fig. 8) on execute switching show and execute light-emitting component Q1 and Q14 switching shine.However, basic display unit D1 and son are shown
The light-emitting mode of display pattern and light-emitting component Q1 and Q14 on device D2 is arbitrary.For example, executable such display mould
Formula, in the case where reaching the update cycle, only instantaneously to show on basic display unit D1 and sub-display D2
Penetrate than display, then shown again.
Although being described above and showing the preferred embodiment of the present invention, it should be appreciated that, these are the present invention
Example, and be not regarded as limiting.Without departing from the scope of the invention, increase, omission, replacement can be made
With other modifications.Therefore, the present invention is not construed as by limitation described above, and it is only by appended claims
The limitation of range.
Claims (7)
1. a kind of laser gas analysis device, including：
Optical transmitting set emits the laser being irradiated on gas to be measured；
Optical receiver, the laser to penetrating gas to be measured receive；
Multiple optical axises adjust mechanical device, one of them is arranged in the optical transmitting set, and another setting therein exists
In the optical receiver；
Basic display unit is arranged in one of the optical transmitting set and the optical receiver, and display passes through reception on it
The measurement result for penetrating the laser of gas to be measured and obtaining；
Sub-display is arranged in another in the optical transmitting set and the optical receiver, and on it to described
A part for shown measurement result is shown on basic display unit；And
Computing device is arranged in one of the optical transmitting set and optical receiver, and to be measured using being penetrated by reception
The laser of gas and the light receiving signal that obtains calculate the measurement result；
Wherein, the basic display unit at least shows the letter of the transmittance of the concentration and laser for indicating gas to be measured on it
Breath,
The sub-display shows a part of the information of the transmittance for indicating laser as the measurement result, and
At least one of the basic display unit and sub-display execute aobvious for each calculating cycle of the computing device
Show that at least part of of content alternately displays, at least part of the display content is different from the transmission for indicating laser
The part of ratio shows information.
2. laser gas analysis device according to claim 1, wherein
The basic display unit and the computing device are arranged in the optical receiver, and
The sub-display is arranged in the optical transmitting set.
3. laser gas analysis device according to claim 1 further includes the memory for being stored with laser transmittance threshold value,
Described in basic display unit and the sub-display are when the transmittance of laser is no more than the threshold value and the transmittance of laser is super
A part for the measurement result and the measurement result is shown when crossing the threshold value in different modalities.
4. laser gas analysis device according to claim 3, further includes leading-out terminal, different letters is exported external
Number, the signal is different when being more than the threshold value with the transmittance of laser when the transmittance of laser is no more than the threshold value.
5. laser gas analysis device according to claim 1, further includes：
Memory stores the threshold value of the transmittance of laser, wherein
Transmittance of the computing device to the threshold value and the laser obtained using light receiving signal that are stored in the memory
It is compared, determines whether the transmittance of laser is more than stored threshold value, and stored when the transmittance of laser is no more than
Threshold value when so that measurement result is shown in the first pattern on the basic display unit, and when laser transmittance be more than institute
When the threshold value of storage so that measurement result is shown in a second mode on the basic display unit, and
The first mode and the second mode are different from each other.
6. laser gas analysis device according to claim 5, wherein
When the transmittance of laser is no more than stored threshold value, the computing device also makes measurement result show in a third mode
Show on the sub-display, and when the transmittance of laser is more than stored threshold value, the computing device to measure
As a result it is shown on the sub-display with fourth mode, and
The third mode and the fourth mode are different from each other.
7. a kind of laser gas analysis device, including：
Optical transmitting set emits the laser being irradiated on gas to be measured；
Optical receiver, the laser to penetrating gas to be measured receive；
Multiple optical axises adjust mechanical device, one of them is arranged in the optical transmitting set, and another setting therein exists
In the optical receiver；
Basic display unit is arranged in one of the optical transmitting set and the optical receiver, and display passes through reception on it
The measurement result for penetrating the laser of gas to be measured and obtaining；
Sub-display is arranged in another in the optical transmitting set and the optical receiver, and on it to described
A part for shown measurement result is shown on basic display unit；
Computing device is arranged in one of the optical transmitting set and optical receiver, and to be measured using being penetrated by reception
The laser of gas and the light receiving signal that obtains calculate the measurement result；And
Light-emitting component alternately executes opening and closing, the luminous member for each calculating cycle of the computing device
Part be included in the optical transmitting set and optical receiver it is at least one in,
Wherein, the basic display unit at least shows the letter of the transmittance of the concentration and laser for indicating gas to be measured on it
Breath, and
The sub-display shows a part of the information of the transmittance for indicating laser as the measurement result.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014243132 | 2014-12-01 | ||
| JP2014-243132 | 2014-12-01 | ||
| JP2015-139847 | 2015-07-13 | ||
| JP2015139847A JP6142900B2 (en) | 2014-12-01 | 2015-07-13 | Laser gas analyzer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105651741A CN105651741A (en) | 2016-06-08 |
| CN105651741B true CN105651741B (en) | 2018-10-26 |
Family
ID=56124032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510665721.9A Active CN105651741B (en) | 2014-12-01 | 2015-10-15 | Laser gas analysis device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6142900B2 (en) |
| CN (1) | CN105651741B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106053310B (en) * | 2016-08-11 | 2019-03-15 | 北京大方科技有限责任公司 | A kind of dust investigating with foldable correcting mechanism |
| JP6717337B2 (en) * | 2018-04-06 | 2020-07-01 | 横河電機株式会社 | Gas analyzer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1106138A (en) * | 1994-08-05 | 1995-08-02 | 电力工业部南京电力环境保护科学研究所 | In-line monitoring method of gas turbidity and dusty concentration and its monitor |
| CN2224414Y (en) * | 1995-04-18 | 1996-04-10 | 东北电力学院中能科技开发公司 | Pocket gas-liquid leakage detecting instrument |
| US6538728B1 (en) * | 1999-08-26 | 2003-03-25 | DRäGER SICHERHEITSTECHNIK GMBH | Gas sensor with open optical measurement path |
| CN201434754Y (en) * | 2009-06-25 | 2010-03-31 | 上海科大鲁能集成科技有限公司 | Laser intelligent detector for SF6 gas leakage |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5421896A (en) * | 1977-07-20 | 1979-02-19 | Mitsubishi Heavy Ind Ltd | No2 densitometer |
| JPS6287831A (en) * | 1985-10-15 | 1987-04-22 | Oki Electric Ind Co Ltd | Method for aligning optical axes in light transmissivity measuring apparatus |
| JP2008232918A (en) * | 2007-03-22 | 2008-10-02 | Anritsu Corp | Gas detector |
| JP5339046B2 (en) * | 2008-10-16 | 2013-11-13 | 横河電機株式会社 | Laser gas analyzer |
-
2015
- 2015-07-13 JP JP2015139847A patent/JP6142900B2/en active Active
- 2015-10-15 CN CN201510665721.9A patent/CN105651741B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1106138A (en) * | 1994-08-05 | 1995-08-02 | 电力工业部南京电力环境保护科学研究所 | In-line monitoring method of gas turbidity and dusty concentration and its monitor |
| CN2224414Y (en) * | 1995-04-18 | 1996-04-10 | 东北电力学院中能科技开发公司 | Pocket gas-liquid leakage detecting instrument |
| US6538728B1 (en) * | 1999-08-26 | 2003-03-25 | DRäGER SICHERHEITSTECHNIK GMBH | Gas sensor with open optical measurement path |
| CN201434754Y (en) * | 2009-06-25 | 2010-03-31 | 上海科大鲁能集成科技有限公司 | Laser intelligent detector for SF6 gas leakage |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105651741A (en) | 2016-06-08 |
| JP2016109662A (en) | 2016-06-20 |
| JP6142900B2 (en) | 2017-06-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105651741B (en) | Laser gas analysis device | |
| EP4224250A3 (en) | Mode control of photonic crystal fiber based broadband light sources | |
| CN104075997A (en) | Continuous monitoring method and device for turbidity of water body | |
| ATE531018T1 (en) | SMOKE DETECTOR WITH POLLUTION MONITORING | |
| CN102759906A (en) | Method and apparatus for characterizing process control equipment coupling integrity | |
| RU2014105256A (en) | METHOD FOR MONITORING TECHNICAL CONDITION OF PIPELINE AND SYSTEM FOR ITS IMPLEMENTATION | |
| BRPI1014703A2 (en) | Field device with measurement accuracy report. | |
| DE50312776D1 (en) | ||
| CN103645161A (en) | Turbidity detecting device | |
| CN107340237B (en) | Water quality on-line monitoring device based on light emitting diode | |
| CN101629900B (en) | Calibration device and method of online laser gas analysis system | |
| CN102980521B (en) | Thick-thin dual-purpose plating thickness measurer | |
| CN104764507A (en) | Optical channel water level sensor | |
| EP3029451B1 (en) | Laser gas analyzer | |
| CN205384020U (en) | Coaxial adjusting device | |
| WO2019150606A8 (en) | Measurement apparatus | |
| JP2007042383A (en) | Lighting device | |
| KR20140103663A (en) | A residual gas analizer of the plasma process chamber | |
| CN103048025A (en) | Device and method for measuring seed cotton flow | |
| PH12020551595A1 (en) | Remaining life evaluation method for tube | |
| CN107543797B (en) | Universal intelligent sensor based on single light source water quality detection parameters | |
| CN110346089A (en) | A kind of valve leakage detecting device | |
| RU118070U1 (en) | DEVICE FOR CONTROL OF TECHNICAL CONDITION OF HIGH VOLTAGE ELECTRIC POWER EQUIPMENT IN OPERATING MODE | |
| KR20220092283A (en) | System and method for monitoring light intensity | |
| CN217277695U (en) | In-situ continuous direct measurement type optical method dust meter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |