CN110018274A - A kind of gas detection sensor scaling method not depending on calibrating gas - Google Patents
A kind of gas detection sensor scaling method not depending on calibrating gas Download PDFInfo
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- CN110018274A CN110018274A CN201910109182.9A CN201910109182A CN110018274A CN 110018274 A CN110018274 A CN 110018274A CN 201910109182 A CN201910109182 A CN 201910109182A CN 110018274 A CN110018274 A CN 110018274A
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/007—Arrangements to check the analyser
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Abstract
A kind of gas detection sensor scaling method not depending on calibrating gas is the scaling method according to instant environmental gas concentration Testing value, with the detecting instrument of detection gas, the environment measuring gas concentration numerical value that instrument constantly detects is corresponding while the value of electrical signals of the gas detection sensor of same environment completes the calibration of gas detection sensor, and it is unrelated with calibrating gas, both the use cost of calibrating gas had been saved, also save the holding cost of calibrating gas, to greatly save gas detection sensor calibration cost, improve gas detection sensor calibration efficiency, it lays a good foundation to produce in enormous quantities, the application for also relying on the gas detection sensor that calibrating gas carries out gas detection sensor calibration at present must be pushed.It is clear that demarcate the obtained result of gas detection sensor method in attenuation process more acurrate for the gas detection sensor scaling method ratio calibrating gas according to instant environmental gas concentration Testing value.
Description
Technical field
The present invention is a kind of gas detection sensor scaling method, especially a kind of gas detection for not depending on calibrating gas
Transducer calibration method.
Background technique
Gas detection sensor manufacturing enterprise uses always calibrating gas scaling method marked gas detection sensor.If
It is the stronger gas of the volatility such as formaldehyde, benzene, the acquisition of one side calibrating gas is difficult, on the other hand in use very
It is easy to cause gas loss without being calibrating gas.Obviously, this is totally unfavorable to producing, and causes associated gas detection sensor
It holds at high price, and is exactly that the man who rather trusted his measruements than placing any confidence in his own feet when buying shoes for modern version with the method for calibrating gas marked gas detection sensor.
Obviously, the calibration of gas detection sensor is not dependent on calibrating gas and in the air containing coherent detection gas
Environment is demarcated, and is the certainty of end calibrating gas marked gas detection sensor.Only this is likely to increase substantially gas
The calibration efficiency of body detecting sensor reduces calibration cost, will especially expend maximum calibrating gas expense and be reduced to almost
It is 0.
Summary of the invention
The present invention provides a kind of gas detection sensor mark for not depending on calibrating gas to solve prior art deficiency
Determine method, i.e., in deduction modern version, the man who rather trusted his measruements than placing any confidence in his own feet when buying shoes, but " examination with foot? ", containing detection gas and interference gas contains
In the environment for measuring not super safe level, with the detection instrument measurement gas concentration numerical value for the detection gas for meeting measurement criteria, read
The electric signal of gas detection sensor is taken, this electric signal is the detection instrument measurement gas of the corresponding detection gas for meeting measurement criteria
Bulk concentration numerical value.
After the present invention is implemented, the calibration efficiency of gas detection sensor is increased substantially, reduces calibration cost, especially will
It expends maximum calibrating gas expense and is reduced to almost 0, gas detection sensor will be promoted to promote and apply, with meet will
Arrival Internet of Things spring tide.
The present invention is implemented as follows: a kind of gas detection sensor scaling method for not depending on calibrating gas, is included in
Detection gas containing the gas detection sensor being calibrated and in the environment of the not super safe level of interference gas content, place symbol
The detecting instrument of the detection gas of total amount standard, instrument, and by the gas detection sensor being calibrated and it is placed in same environment
In gas detection sensor test circuit be reliably connected, reach detection stable state in the gas detection sensor being calibrated
When, detection gas concentration values shown in the detecting instruments of detection gas, instrument are read, and read the quilt in same environment simultaneously
The value of electrical signals of the gas detection sensor of calibration, the value of electrical signals of the gas detection sensor read are exactly detection gas
The respective value for the detection gas concentration values that detecting instrument, instrument detect, i.e. completion gas detection sensor is in the detection gas
The calibration of bulk concentration numerical value, the environment measuring gas concentration numerical value pair constantly detected with the detecting instrument of detection gas, instrument
The value of electrical signals of the gas detection sensor of same environment simultaneously is answered similarly to examine to complete the calibration of gas detection sensor
It surveys the environment that gas concentration does not wait and completes same operation, gas detection sensor can be completed in multiple detection gas concentration values
Calibration.
A kind of gas detection sensor scaling method not depending on calibrating gas, the gas including not depending on calibrating gas are examined
The seamless shell of transducer calibration mechanism is surveyed, enclosure interior divides at least two sensor detection gas concentration spaces, such as first
Detection gas concentration space, second detection gas concentration space etc. are placed in each sensor detection gas concentration space
Meet sensor detection gas detecting instrument, the instrument of measurement criteria, as placed first group in the first detection gas concentration space
The detecting instrument of detection gas, instrument, interior detecting instrument, the instrument for placing second group of detection gas of the second detection gas concentration space
Table etc. is delivered to being reliably connected for the same space by transport mechanism and tests the gas of circuit being calibrated in gas detection sensor
Detection sensor is provided with detection gas injection hole on the shell above the first detection gas concentration space, and shell is along transport mechanism
Conveying direction both ends have the gas detection sensor entrance and exit being calibrated, and two neighboring sensor detection gas are dense
The interval in degree space is provided with transport mechanism conveying gas detection sensor and passes through mouth.
The enclosure interior divides at least two sensor detection gas concentration spaces, i.e., as the first detection gas concentration is empty
Between, second detection gas concentration space etc., when the electrical characteristics curve for gas detection sensor is straight line, the first inspection of setting
Survey gas concentration space, the second detection gas concentration space；It is non-rectilinear in the electrical characteristics curve for gas detection sensor
When more than two sensor detection gas concentration space is set, enter such as the first detection gas concentration space, the second detection gas are dense
Spend space, third detection gas concentration space etc..
The gas detection sensor entrance and exit, gas detection sensor pass through mouth, mountable controllable closing
Device controls the detection gas concentration of detection gas concentration space with locking device opening time, when being closed with locking device
Between keep the detection gas concentration of detection gas concentration space.
Gas detection sensor entrance and exit, gas detection sensor are stated by mouth in the gas detection sensing being calibrated
Device reach the time used in detection stable state it is shorter when, be especially straight line for the electrical characteristics curve of gas detection sensor
When, available gas detection sensor entrance and exit, gas detection sensor control detection gas by the different size of mouth
The detection gas concentration of concentration space, at this point, the detecting instrument of detection gas, instrument should be placed in close to gas detection sensor
Place section.
It is described to be reliably connected in the gas detection sensor of the test circuit of gas detection sensor being calibrated, it can be
One or more than one, is mounted in gas detection sensor entrance and exit, gas detection sensor by mouth controllable
When locking device, more than one gas detection sensor can be placed, to improve calibration efficiency.
Sensor detection gas detecting instrument, the instrument for meeting measurement criteria are placed in the same detection gas concentration space
Table can be one or more (more than one), the detection as placed first group of detection gas in the first detection gas concentration space
Instrument, instrument, the interior body detecting instrument for placing second group of detection gas of the second detection gas concentration space, instrument, third detect gas
Body detecting instrument, the instrument etc. that third group detection gas is placed in bulk concentration space, when gas detection sensor entrance and exit, gas
When body detecting sensor is mounted with controllable locking device by mouth, detecting instrument, the instrument of multiple detection gas can be placed,
Detection gas concentration is calculated with the method for average or then the method for average calculates detection gas concentration with maximum number and minimum number is removed；Work as gas
When body detecting sensor entrance and exit, gas detection sensor do not install controllable locking device by mouth, one can be placed
A or two detection gas body detecting instrument, instrument, calculate detection gas concentration with the method for average when placing two.
Detailed description of the invention
Fig. 1, floor map of the present invention
Fig. 2, indoor and outdoor ventilation hole structure plan cross-section schematic diagram
1 shell, 2 first detection gas concentration spaces, 3 second detection gas concentration spaces, 4 third detection gas concentration are empty
Between, 5 detection gas injection holes, 6 transport mechanisms, 7 gas detection sensors, the detecting instrument of 8 first groups of detection gas, instrument, 9
The detecting instrument of second group of detection gas, instrument, the detecting instrument of 10 third group detection gas, instrument, 11 gas detections sensing
Device entrance and exit, 12 gas detection sensors pass through mouth, 13 locking devices.
Specific embodiment
Schematic diagram as shown in Figure 1 and Figure 2, the present invention is implemented as follows:
A kind of gas detection sensor scaling method not depending on calibrating gas, it is special in the electricity for gas detection sensor
When linearity curve is straight line, the seamless shell 1 of gas detection sensor calibrating device including not depending on calibrating gas, in shell 1
Portion divides the first detection gas concentration space 2, and the second detection gas concentration space 3 is put in the first detection gas concentration space 2
First group of detection gas detecting instrument for meeting measurement criteria, instrument 8 are set, symbol is placed in the second detection gas concentration space 3
The shell 1 of second group of detection gas detecting instrument of total amount standard, instrument 9,2 top of the first detection gas concentration space is provided with
Detection gas injection hole 5, shell 1 have gas detection sensor entrance and exit along 6 conveying direction both ends of transport mechanism
11, the interval of the first detection gas concentration space 2 and the second detection gas concentration space 3 is provided with transport mechanism conveying gas detection
Sensor is mounted with controllably in gas detection sensor entrance and exit 11 and gas detection sensor by mouth 12 by mouth 12
The locking device 13 of system.When marked gas detection sensor 7, the controllable closing dress of gas detection sensor entrance is successively opened
13 are set, transport mechanism 6, which conveys to be reliably connected, tests the gas detection sensor 7 of circuit being calibrated in gas detection sensor 7,
Controllable locking device 13 is closed, before this into the first detection gas concentration space 2 by 7 entrance of gas detection sensor
Pass through detection gas injection hole 5 and injected detection gas to high concentration region, reaches inspection in the gas detection sensor 7 being calibrated
When surveying stable state, respectively to the detecting instruments of first group of detection gas in the first detection gas concentration space 2, instrument 8
Detection gas concentration value is read out, and is read out to 7 value of electrical signals of gas detection sensor being calibrated, the telecommunications of reading
The average value of number value and the detection gas concentration value read is first point of calibration value；It opens gas detection sensor and passes through mouth
12, while transport mechanism 6 conveys to be reliably connected and tests the gas detection sensor of circuit being calibrated in gas detection sensor 7
7, the second detection gas concentration space 3 is entered by mouth 12 by gas detection sensor, to the second detection gas concentration space 3
When the detecting instrument of second group of interior detection gas, instrument 9 have low concentration show value, controllable locking device 13 is closed,
When the gas detection sensor 7 being calibrated reaches detection stable state, respectively to second in the second detection gas concentration space
The detecting instrument of group detection gas, the detection gas concentration value of instrument 9 are read out, and to the gas detection sensor being calibrated
7 value of electrical signals are read out, and the average value of the detection gas concentration value of the value of electrical signals and reading of reading is the mark of second point
Definite value；The controllable locking device 13 of gas detection sensor outlet is opened, transport mechanism 6 conveys the gas for having demarcated completion
Body detecting sensor 7 is exported by gas detection sensor and removes shell 1, closed controllable locking device 13 and record mark
Definite value completes the staking-out work of one group of gas detection sensor 7.The calibrating parameters of two o'clock are obtained, linear equation, Ke Yizhun are utilized
Really calculate corresponding 7 electric signal of gas detection sensor when characteristic curve-straight line slope and detection gas concentration value are 0
Value, i.e. 0 point drift value.Repeat aforementioned staking-out work, i.e., continuously completes the calibration work of gas detection sensor 7
Make.
Obviously, when the electrical characteristics curve for gas detection sensor 7 is straight line, calibration result is very accurately.
A kind of gas detection sensor scaling method not depending on calibrating gas, in the electricity for gas detection sensor 7
More than two sensor detection gas concentration space is set when characteristic curve is non-rectilinear, and in each detection gas concentration space
Interior placement one group of sensor detection gas detecting instrument, instrument.Point-by-point standardization is carried out according to aforementioned method steps, passes through control
Various concentration in detection gas concentration space is evenly distributed in gamut, or controls accurate concentration close to inflection point
Complete the staking-out work of gas detection sensor.
In short, a kind of gas detection sensor scaling method for not depending on calibrating gas is according to instant environmental gas concentration
The scaling method of detected value, the environment measuring gas concentration numerical value pair constantly detected with the detecting instrument of detection gas, instrument
Should the value of electrical signals of the gas detection sensor of same environment simultaneously complete the calibration of gas detection sensor, and and Standard Gases
Body is unrelated, has both saved the use cost of calibrating gas, the holding cost of calibrating gas is also saved, to greatly save gas
Detection sensor calibration cost improves gas detection sensor calibration efficiency, lays a good foundation, must push away to produce in enormous quantities
The dynamic application for also relying on calibrating gas at present and carrying out the gas detection sensor of gas detection sensor calibration.It is clear that according to
It is detected and is sensed with calibrating gas marked gas according to the gas detection sensor scaling method ratio of instant environmental gas concentration Testing value
The obtained result of device method is more acurrate, because calibrating gas is from complying with standard gas concentration to standard gas concentration is not met
One attenuation process.
Claims (7)
1. a kind of gas detection sensor scaling method for not depending on calibrating gas, it is characterised in that: be included in containing being calibrated
Gas detection sensor (7) detection gas and in the environment of the not super safe level of interference gas content, placement meet metering
The detecting instrument of the detection gas of standard, instrument, and by the gas detection sensor being calibrated (7) and be placed in same environment
Gas detection sensor (7) test circuit is reliably connected, and reaches detection stable state in the gas detection sensor (7) being calibrated
When, detection gas concentration values shown in the detecting instruments of detection gas, instrument are read, and read the quilt in same environment simultaneously
The value of electrical signals of the gas detection sensor (7) of calibration, the value of electrical signals of the gas detection sensor read (7) is exactly to detect
The respective value for the detection gas concentration values that the detecting instrument of gas, instrument detect, i.e. completion gas detection sensor (7) exist
The calibration of the detection gas concentration values, the environment measuring gas constantly detected with the detecting instrument of detection gas, instrument are dense
Degree value is corresponding while the value of electrical signals of the gas detection sensor (7) of same environment completes gas detection sensor (7)
Calibration similarly completes same operation in the environment that detection gas concentration does not wait, gas detection sensor (7) can be completed more
The calibration of a detection gas concentration value.
2. a kind of gas detection sensor scaling method for not depending on calibrating gas, it is characterised in that: including not depending on Standard Gases
The seamless shell of gas detection sensor (7) calibrating device (1) of body, shell (1) is internal to divide the detection of at least two sensors
Gas concentration space, such as the first detection gas concentration space (2), second detection gas concentration space (3) etc., in each sensing
Sensor detection gas detecting instrument, the instrument for meeting measurement criteria, such as the first detection are placed in device detection gas concentration space
Detecting instrument, the instrument (8) of first group of detection gas, the second detection gas concentration space (3) are placed in gas concentration space (2)
Interior detecting instrument, the instrument (9) etc. for placing second group of detection gas is delivered to reliably connecting for the same space by transport mechanism (6)
It is connected to the gas detection sensor (7) of gas detection sensor (7) test circuit being calibrated, the first detection gas concentration space
(1) it is provided with detection gas injection hole (5) on the shell (1) above, shell (1) is distinguished along transport mechanism (6) conveying direction both ends
It is provided with the gas detection sensor entrance and exit (11) being calibrated, the interval of two neighboring sensor detection gas concentration space
It is provided with transport mechanism conveying gas detection sensor and passes through mouth (12).
3. a kind of gas detection sensor scaling method for not depending on calibrating gas according to claim 2, feature exist
In: at least two sensor detection gas concentration spaces are divided inside the shell (1), i.e., such as the first detection gas concentration space
(2), second detection gas concentration space (3) etc., when the electrical characteristics curve for gas detection sensor (7) is straight line, if
Set the first detection gas concentration space (2), the second detection gas concentration space (3)；In the electricity for being used for gas detection sensor (7)
More than two sensor detection gas concentration space is set when characteristic curve is non-rectilinear, is entered such as the first detection gas concentration space
(2), the second detection gas concentration space (3), third detection gas concentration space (4) etc..
4. a kind of gas detection sensor scaling method for not depending on calibrating gas according to claim 2, feature exist
In: the gas detection sensor entrance and exit (11), gas detection sensor pass through mouth (12), mountable controllable envelope
Device (13) are closed, the detection gas concentration of detection gas concentration space are controlled with locking device (13) opening time, with closing
Device (13) off-period keeps the detection gas concentration of detection gas concentration space.
5. a kind of gas detection sensor scaling method for not depending on calibrating gas according to claim 2, feature exist
In: the gas detection sensor entrance and exit (11), gas detection sensor are by mouth (12) in the gas inspection being calibrated
Survey sensor (7) reach detection stable state used in the time it is shorter when, especially be used for gas detection sensor (7) electrical characteristics
When curve is straight line, available gas detection sensor entrance and exit (11), gas detection sensor pass through the difference of mouth (12)
Size controls the detection gas concentration of detection gas concentration space, at this point, the detecting instrument of detection gas, instrument should be placed in
Close to section where gas detection sensor (7).
6. a kind of gas detection sensor scaling method for not depending on calibrating gas according to claim 2, feature exist
In: it is described to be reliably connected in the gas detection sensor (7) of the test circuit of gas detection sensor (7) being calibrated, it can be with
It is one or more than one, is installed in gas detection sensor entrance and exit (11), gas detection sensor by mouth (12)
When controllable locking device (13), more than one gas detection sensor (7) can be placed, to improve calibration efficiency.
7. a kind of gas detection sensor scaling method for not depending on calibrating gas according to claim 2, feature exist
In placed in: the same detection gas concentration space meet the sensor detection gas detecting instrument of measurement criteria, instrument can
To be one or more (more than one), the detection of first group of detection gas is placed in such as the first detection gas concentration space (2)
Instrument, instrument (8), (3) place the body detecting instrument of second group of detection gas, instrument (9) in the second detection gas concentration space, the
Body detecting instrument, the instrument (10) etc. that third group detection gas is placed in three detection gas concentration spaces (4), when gas detection senses
When device entrance and exit (11), gas detection sensor are mounted with controllable locking device (13) by mouth (12), it can place
The detecting instrument of multiple detection gas, instrument calculate detection gas concentration with the method for average or with removing maximum number and minimum number is right
Post-averaging calculates detection gas concentration；When gas detection sensor entrance and exit (11), gas detection sensor pass through mouth
(12) when controllable locking device (13) are not installed, body detecting instrument, the instrument of one or two detection gas can be placed, is placed
Detection gas concentration is calculated with the method for average at two.
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Cited By (1)
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