CN208043246U - The temperature measuring equipment of thermometric objective body on a kind of electromagnetic stove - Google Patents
The temperature measuring equipment of thermometric objective body on a kind of electromagnetic stove Download PDFInfo
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- CN208043246U CN208043246U CN201721921724.5U CN201721921724U CN208043246U CN 208043246 U CN208043246 U CN 208043246U CN 201721921724 U CN201721921724 U CN 201721921724U CN 208043246 U CN208043246 U CN 208043246U
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Abstract
The utility model is related to a kind of temperature measuring equipments of thermometric objective body on electromagnetic stove, include infrared probe, the infrared light supply positioned at the lower section of electromagnetism range panel, the temperature detecting element for being arranged on electromagnetism range panel and being located at by the infrared detection region on electromagnetism range panel, the controller being electrically connected with infrared probe, infrared light supply, temperature detecting element, infrared light supply is located at by infrared probe and matches with detection zone of the infrared probe on electromagnetism range panel, has Thermosensor in infrared probe.The temperature measuring equipment of thermometric objective body on electromagnetic stove in the utility model, in the IR parameters for calculating thermometric objective body in real time, it obtains electromagnetic stove panel temperature, circuit board temperature in real time simultaneously, and realizes the calculating of thermometric target temperature on the basis of the energy of the infrared probe acquisition obtained in real time.Temperature measuring equipment in the utility model is simple in structure, and assay method is easy to operate to be easy, and the temperature data obtained is more accurate.
Description
Technical field
The utility model is related to temperature detection technical field, more particularly to the thermometric dress of thermometric objective body on a kind of electromagnetic stove
It sets.
Background technology
In existing thermometry, there are contact thermography and non-contact temperature measuring two major classes.Contact thermography generally uses temperature-sensitive electricity
The temperature-sensitive devices such as resistance or thermocouple.Contact thermography inherently has delay, because object under test will deliver heat to temperature-sensitive device,
It can measure.And the temperature tolerance of temperature-sensitive device is limited, applies the aging speed in high-temperature device thermometric environment fast,
And it also cannot achieve in some application environments and to be in direct contact with thermometric object, application range is limited.
Non-contact temperature measuring is mainly infrared measurement of temperature, and generally use infrared probe carries out thermometric.Infrared probe mainly utilizes spoke
Penetrate fuel factor so that cause temperature to increase after so that sensitive detection parts is received radiation energy, and then make in infrared probe a certain performance with
The variation of temperature and change, and then obtain temperature signal.
According to optical principle ,+τ=1 α+ρ, wherein α indicate that absorptivity, ρ indicate that reflectivity, τ indicate transmissivity.According to base
That hoff's law is it is found that α=ε, wherein ε indicate that emissivity then has+ρ=1 ε for the object of transparent materials, τ=0, i.e., not
The reflectivity on transparent substance surface is higher and emissivity is inversely proportional.In infrared measurement of temperature, the measurement of emissivity is the work that must be carried out
Make.And infrared probe can use emissivity to carry out temperature calibration close to 1 black matrix in production.Different manufacturers selects black
The reflectivity of body is not quite similar, but the emissivity in infrared probe is then set as a fixed value.The object of same temperature, meeting
Cause the emissivity of object different because of the difference of material, and then thermometric error can be caused.The temperature for causing detection to obtain
Degree result can have larger error.
When cookware placed on electromagnetic stove etc. carries out thermometric, due to there is the panel of electromagnetic stove to obstruct factor, put on electromagnetic stove
The infrared measurement of temperature of placing articles is accordingly comparatively laborious.The article being placed on electromagnetic stove is carried out using the infrared probe in electromagnetic stove
When thermometric, there are following problems：It is unknown that article slin emissivity to be measured is placed on electromagnetic stove；Panel infrared light transmission is unknown；
Panel also has higher temperature, can also emit infrared ray.In order to solve the problems, such as these thermometrics, then occur corresponding on panel
The position trepanning of infrared probe or infrared probe are external.Trepanning can reduce the intensity of electromagnetism range panel, there are security risk,
And influence the cleaning of electromagnetic stove beauty, poor practicability.And it is difficult then to measure article bottom on electromagnetic stove by the external setting of infrared probe
The temperature in portion is only capable of measuring the temperature of article side.In this way, being splashed to the greasy dirt on infrared probe, environment during thermometric
The extraneous factors such as corrosion will have a direct impact on the temperature measurement accuracy of infrared probe, that there are thermometric disturbing factors is more, unsightly, be unfavorable for
The problems such as cleaning, practicability are also poor.
Utility model content
Technical problem to be solved in the utility model is that offer one kind can be using process for the above-mentioned prior art
The reflectivity of middle detection thermometric objective body improves the electromagnetism of temperature detection accuracy rate to realize thermometric objective body temperature computation
The temperature measuring equipment of thermometric objective body on stove.
The technical scheme in the invention for solving the above technical problem is：The thermometric of thermometric objective body on a kind of electromagnetic stove
Device, it is characterised in that：Including
Infrared probe, is built-in with the Thermosensor that can obtain temperature signal, and the infrared probe is arranged in electromagnetic stove
And positioned at the lower section of electromagnetism range panel；
Infrared light supply, is arranged in electromagnetic stove and positioned at the lower section of electromagnetism range panel, the infrared light supply is located at infrared spy
Head is other, and the installation position of the infrared light supply matches with detection zone of the infrared probe on electromagnetism range panel, so that
It obtains the infrared probe and is able to detect that infrared light supply infrared light through reflection；
Temperature detecting element is arranged on the electromagnetism range panel and is located at detection of the infrared probe on electromagnetism range panel
By region, the temperature for detecting electromagnetism range panel；
Controller is electrically connected with the infrared probe, infrared light supply, temperature detecting element respectively.
Further include that can be electrically connected with the controller in order to obtain the IR parameters of electromagnetism range panel, circuit board
Spare infrared probe, the spare infrared probe are in mirror symmetry with the infrared probe for being placed on above electromagnetism range panel
Position use.
Preferably, the infrared probe, infrared light supply are integrally disposed on one piece of circuit board.
Preferably, the controller is also integrally disposed on the circuit board.
Compared with prior art, the utility model has the advantage of：In the utility model, places and survey on obtaining electromagnetic stove
In the temperature course of warm objective body, the IR parameters, the IR parameters of circuit board and the thermometric mesh that obtain panel in real time are needed
The IR parameters of standard type, and then realize that the calculating of temperature obtains on this basis.The temperature measuring equipment fills during carrying out thermometric
Divide and considers the red of the IR parameters property of panel material, the IR parameters property of circuit board material and thermometric objective body itself
The influence of outer parametric confrontation infrared temperature testing result, and then calculated according to the practical IR parameters for surveying area so that meter
It is more accurate to calculate the temperature results obtained.And the temperature measuring equipment structure of thermometric objective body is very simple on the electromagnetic stove, and phase
The temp measuring method answered is also very simple in the operation of laboratory stage and practical stage, highly practical.
Description of the drawings
Fig. 1 is the structural schematic diagram of the temperature measuring equipment of thermometric objective body on electromagnetic stove in the utility model embodiment.
Fig. 2 is the structural schematic diagram that basic target body IR parameters measure in the utility model embodiment.
Fig. 3 is the structure diagram of the temperature measuring equipment of thermometric objective body on electromagnetic stove in the utility model embodiment.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing embodiment.
As shown in Figure 1 to Figure 3, on the electromagnetic stove in the present embodiment thermometric objective body temperature measuring equipment, including infrared probe
1, infrared light supply 2, temperature detecting element 3, controller 4 and circuit board 7, to facilitate installation, infrared probe 1, infrared light supply
2, controller 4 is integrally disposed on circuit board 7, and in the circuit board 7 setting electromagnetic stove and positioned at the below the panel of electromagnetic stove.
In addition, during electromagnetic stove produces, in order to accurately obtain 6 accurate IR parameters of each electromagnetism range panel and infrared light supply 2
Energy summation is can receive, the temperature measuring equipment of thermometric objective body further includes having spare infrared probe 5 on the electromagnetic stove.Controller 4 divides
It is not electrically connected with infrared probe 1, spare infrared probe 5, infrared light supply 2 and temperature detecting element 3.
Infrared probe 1 is located at the lower section of electromagnetism range panel 6 and apart from 6 a certain distance of electromagnetism range panel, so that red
Outer probe 1 has a piece of detection zone for being able to detect that infrared light on electromagnetism range panel 6.Infrared probe in the present embodiment
1 can directly use 1 body of infrared probe in the temperature sensor in electromagnetic stove.Being built-in in the infrared probe 1 can obtain
The Thermosensor of temperature signal with the temperature of real-time detection circuit plate 7 and can send controller 4 to by Thermosensor.
Temperature detecting element 3 is then sticked by the detection zone on 6 lower surface of electromagnetism range panel and positioned at infrared light supply 2,
Temperature detecting element 3 can detect 6 temperature of electromagnetism range panel and then be driven to controller 4 in real time.
Spare infrared probe 5 is placed on 6 top of electromagnetism range panel and the position with infrared probe 1 in mirror symmetry when in use
Set use.
Infrared light supply 2 is located at the lower section of electromagnetism range panel 6 and by infrared probe 1, and the setting position of infrared light supply 2
It sets and matches with detection zone of the infrared probe 1 on electromagnetism range panel 6, so that infrared probe 1 is able to detect that infrared light
2 infrared light through reflection of source.
Controller 4 can directly use the master controller 4 in electromagnetic stove, can also use an independent controller 4.For
It is easy to operate that a button being electrically connected with controller 4 can be set, it can be sent and be started to controller 4 by operation button
The order that the IR parameters of thermometric objective body 8 measure on electromagnetic stove, and then controller 4 controls infrared probe 1,2 work of infrared light supply
Make, and then realizes the measurement of each IR parameters of thermometric objective body 8 on electromagnetic stove.In continuous mode, user exists according to prompt
Such as cookware thermometric objective body 8 to be determined is placed on electromagnetic stove.
The temp measuring method of thermometric objective body includes the following steps on electromagnetic stove：
S1, the transmissivityτ for obtaining the electromagnetism range panel 6 stored in controller 40, electromagnetism range panel 6 reflectivity be ρ0With
And the emissivity of electromagnetism range panel 6 is ε0, the emissivity for obtaining the circuit board 7 stored in controller 4 is ε2, obtain in controller 4
The infrared light supply 2 of storage can receive the summation Es of energy, in the infrared energy for obtaining the standard black body radiation stored in controller 4
The ENERGY E of part and the functional relation E=f (T) of standard blackbody temperature T can be received by infrared probe 1；
The transmissivity t of the electromagnetism range panel 60And infrared light supply 2 can receive what the summation Es of energy was produced in electromagnetic stove
When can additionally increase and be measured using spare infrared probe 5, and then measurement result is stored in controller 4, it is convenient
User transfers use when carrying out measuring reflectance to the non-infrared target body such as cookware on electromagnetic stove in use；
In the production process of electromagnetic stove, the acquisition methods that infrared light supply 2 can receive the summation Es of energy are specific as follows：
It is followed the steps below before the installation of electromagnetism range panel 6：
S-A, spare infrared probe 5 is placed on above 6 installation site of electromagnetism range panel with infrared probe 1 in mirror symmetry
Position；
S-B, control infrared light supply 2 remain off, when not installing placement electromagnetism range panel 6, spare infrared probe 5
It detects the infrared energy data E of the infrared light supply 2 obtained and is sent to controller 4；
S-C, infrared light supply 2 is opened, the infrared energy data E0 for the infrared light supply 2 that the detection of spare infrared probe 5 obtains is simultaneously
It is sent to controller 4；
S-D, controller 4 calculate spare infrared probe 5 can be received in the case where not placing electromagnetism range panel 6 it is infrared
The summation Et=E0-E of 2 energy of light source；
Es=Et=E0-E；
Remember that electromagnetism range panel 6, circuit board 7 are basic objective body, the acquisition methods of the IR parameters of basic target body are：
S100, basic target body is placed so that infrared probe 1 and 5 mirror symmetry of spare infrared probe are distributed in basic mesh
The both sides of standard type detection faces；
S200, the control of controller 4 open and close infrared light supply 2；
Infrared probe 1 detects the infrared energy data E11 obtained when infrared light supply 2 is opened and is sent to controller 4, infrared
Probe 1 detects the infrared energy data E22 obtained when infrared light supply 2 is closed and is sent to controller 4；
Spare infrared probe 5 detects the infrared energy data E3 obtained when infrared light supply 2 is opened and is sent to controller 4,
Spare infrared probe 5 detects the infrared energy data E4 obtained when infrared light supply 2 is closed and is sent to controller 4；
S300, controller 4 calculate basic target body transmissivity beThe reflectivity of basic target body isThe emissivity of objective body is
During the test, the transmissivity that the data obtained specifically calculate electromagnetism range panel 6 is corresponded to according to electromagnetism range panel 6
t0, reflectivity ρ0And emissivity is ε0；The transmissivity t of the specific computing board of data 7 obtained is corresponded to according to circuit board 72；
The ENERGY E and standard blackbody temperature of part can be received in the infrared energy of standard black body radiation by infrared probe 1
The functional relation E=f (T) for spending T is then obtained in laboratory environment by the fitting of multiple DATA REASONING；
S2, under the premise of thermometric objective body 8 is not placed on electromagnetism range panel 6, controller 4 control open and close it is infrared
Light source 2；
Infrared probe 1 detects the infrared energy data E1 obtained when infrared light supply 2 is opened and is sent to controller 4, infrared
Probe 1 detects the infrared energy data E2 obtained when infrared light supply 2 is closed and is sent to controller 4；
S3, thermometric objective body 8 is placed on electromagnetism range panel 6, and thermometric objective body 8 is placed on to the inspection of infrared probe 1
It surveys in region, the control of controller 4 opens and closes infrared light supply 2；
Infrared probe 1 detects the infrared energy data E5 obtained when infrared light supply 2 is opened and is sent to controller 4, infrared
Probe 1 detects the infrared energy data E6 obtained when infrared light supply 2 is closed and is sent to controller 4；
S4, controller 4 calculate the infrared energy of the transmitting of infrared light supply 2 after the transmission of electromagnetism range panel 6, and then by waiting for
Objective body bottom reflection is surveyed, is transmitted using electromagnetism range panel 6, the infrared energy Er finally received by infrared probe 1；
Er=(E5-E6)-(E1-E2)=Es*t0*ρ1*t0；(formula 1)
Wherein ρ1For the reflectivity of thermometric objective body 8；
It can be obtained according to formula 1,
Due to the transmissivity t of thermometric objective body 81=0, the emissivity ε of thermometric objective body 8 is calculated according to formula 21；
The infrared energy data e that S5,4 real-time reception infrared probe 1 of controller obtain；
E=Ea+Eb+Ec+Ed；(formula 4)
Wherein EaIndicate the infrared energy of the following table surface radiation for the electromagnetism range panel 6 that infrared probe 1 receives；
Ea=ε0*f(T0)；(formula 5)
T0Indicate the temperature of electromagnetism range panel 6, T0It is detected by temperature detecting element 3 and obtains and send controller 4 to；
EbIndicate thermometric objective body 8 bottom of the infrared energy through being placed on electromagnetic stove of the upper table surface radiation of electromagnetism range panel 6
After portion's reflection, using the infrared energy received by infrared probe 1 after the transmission of electromagnetism range panel 6；
Eb=ε0*f(T0)*ρ1*t0；(formula 6)
EcIndicate the infrared energy of 8 bottom of thermometric objective body placed on electromagnetic stove radiation after the transmission of electromagnetism range panel 6
And the infrared energy that other infrared probe 1 receives；
Ec=ε1f(T1)*t0；(formula 7)
Wherein T1Indicate the temperature for the thermometric objective body 8 placed on electromagnetic stove；
EdIndicate the infrared energy that nearby circuit board 7 radiates of infrared probe 1 after the reflection of the lower surface of electromagnetism range panel 6
And the infrared energy that the energy part received by infrared probe 1 and circuit board 7 radiate through after electromagnetism range panel 6 through thermometric
The sum of the energy part that 8 bottom reflection of objective body is received through electromagnetism range panel 6 by infrared probe 1 again；
Ed=ε2*f(T2)*(ρ0+t0*ρ1*t0；(formula 8)
Wherein T2The temperature of indication circuit plate 7, T2It is obtained by the Thermosensor detection in infrared probe 1 and sends control to
Device 4；
According to formula 4 to formula 8, can obtain：
E=ε0*f(T0)+ε0*f(T0)*ρ1*t0+ε1f(T1)*t0+ε2*f(T2)*(ρ0+t0*ρ1*τ0)；(formula 9)
S6, controller 4 calculate the temperature T for obtaining the thermometric objective body 8 placed on electromagnetic stove according to formula 91。
In this way, user buys back electromagnetic stove in use, can be real-time according to the different cookwares difference placed on electromagnetic stove
The IR parameters of placing cooker on electromagnetic stove are measured, and then when detecting the operating temperature of cookware, testing result is more accurate,
Improve the performance of electromagnetic stove.
Claims (4)
1. the temperature measuring equipment of thermometric objective body on a kind of electromagnetic stove, it is characterised in that：Including
Infrared probe (1), is built-in with the Thermosensor that can obtain temperature signal, and the infrared probe (1) is arranged in electromagnetic stove
Lower section interior and positioned at electromagnetism range panel (6)；
Infrared light supply (2), is arranged in electromagnetic stove and positioned at the lower section of electromagnetism range panel (6), the infrared light supply (2) is located at red
Outer probe (1) is other；
Temperature detecting element (3) is arranged on the electromagnetism range panel (6) and positioned at infrared probe (1) in electromagnetism range panel (6)
On detection zone by, the temperature for detecting electromagnetism range panel (6)；
Controller (4) is electrically connected with the infrared probe (1), infrared light supply (2), temperature detecting element (3) respectively.
2. the temperature measuring equipment of thermometric objective body on electromagnetic stove according to claim 1, it is characterised in that：Further including can be with institute
The spare infrared probe (5) of controller (4) electrical connection is stated, the spare infrared probe (5) is for being placed on electromagnetism range panel (6)
Top is used with the infrared probe (1) in the position of mirror symmetry.
3. the temperature measuring equipment of thermometric objective body on electromagnetic stove according to claim 1 or 2, it is characterised in that：It is described infrared
Probe (1), infrared light supply (2) are integrally disposed on one piece of circuit board (7).
4. the temperature measuring equipment of thermometric objective body on electromagnetic stove according to claim 3, it is characterised in that：The controller
(4) it is also integrally disposed on the circuit board (7).
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| CN201721921724.5U CN208043246U (en) | 2017-12-29 | 2017-12-29 | The temperature measuring equipment of thermometric objective body on a kind of electromagnetic stove |
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| CN201721921724.5U CN208043246U (en) | 2017-12-29 | 2017-12-29 | The temperature measuring equipment of thermometric objective body on a kind of electromagnetic stove |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109282330A (en) * | 2018-11-09 | 2019-01-29 | 杭州老板电器股份有限公司 | Infrared measurement of temperature electromagnetic stove |
| CN109990900A (en) * | 2017-12-29 | 2019-07-09 | 宁波方太厨具有限公司 | The temperature measuring equipment and temp measuring method of thermometric objective body on a kind of electromagnetic stove |
-
2017
- 2017-12-29 CN CN201721921724.5U patent/CN208043246U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109990900A (en) * | 2017-12-29 | 2019-07-09 | 宁波方太厨具有限公司 | The temperature measuring equipment and temp measuring method of thermometric objective body on a kind of electromagnetic stove |
| CN109990900B (en) * | 2017-12-29 | 2024-05-17 | 宁波方太厨具有限公司 | Temperature measuring device and temperature measuring method for temperature measuring target body on electromagnetic stove |
| CN109282330A (en) * | 2018-11-09 | 2019-01-29 | 杭州老板电器股份有限公司 | Infrared measurement of temperature electromagnetic stove |
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