CN104075350A - Take cooking utensils of temperature measurement function - Google Patents
Take cooking utensils of temperature measurement function Download PDFInfo
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- CN104075350A CN104075350A CN201410360186.1A CN201410360186A CN104075350A CN 104075350 A CN104075350 A CN 104075350A CN 201410360186 A CN201410360186 A CN 201410360186A CN 104075350 A CN104075350 A CN 104075350A
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- 238000009529 body temperature measurement Methods 0.000 title abstract description 5
- 238000010411 cooking Methods 0.000 title 1
- 230000005284 excitation Effects 0.000 claims abstract description 88
- 230000006698 induction Effects 0.000 claims abstract description 72
- 238000001514 detection method Methods 0.000 claims abstract description 56
- 230000010355 oscillation Effects 0.000 claims abstract description 49
- 239000003990 capacitor Substances 0.000 claims abstract description 46
- 230000006870 function Effects 0.000 claims description 17
- 230000003321 amplification Effects 0.000 claims description 15
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 15
- 230000008447 perception Effects 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000004861 thermometry Methods 0.000 description 1
Abstract
The invention discloses a stove with a temperature measuring function, which comprises a stove seat, a heater and a pot container, wherein the heater and the pot container are arranged on the stove seat, a temperature sensing LC oscillation circuit for sensing the temperature of the pot container is arranged on the pot container, a temperature identification module is arranged on the stove seat, the temperature sensing LC oscillation circuit comprises an oscillation coil L1 and a temperature sensing capacitor CT, the temperature identification module comprises a controller and an excitation/induction coil L2, and an excitation driving circuit, a state switching circuit and a frequency detection circuit are connected to the excitation/induction coil L2, so that excitation/induction control of separated temperature measurement on the stove is realized. The present case sets up simple and conveniently, and temperature sensing LC oscillation circuit and testee contact, its sensitivity is high, and temperature identification module and testee non-contact easily prolong chip, components and parts life etc. on the temperature identification module.
Description
[technical field]
The present invention relates to a kind of kitchen range with temp sensing function.
[background technology]
In daily life and industrial processes, often need to measure the temperature of various objects.Temperature is all a very important index parameter in many technical fields, and interior of articles temperature under many fields, particularly some air-proof conditions such as industry, medical treatment, military affairs and life, all needs to use temperature measuring equipment and carry out monitor temperature.
Thermometry divides contact temperature-measuring and the large class of contactless temperature-measuring two.Contact temperature-measuring need to be close to sensor testee surface, has circuit to be connected between measuring circuit and sensor simultaneously.Conventional contact temperature-measuring technology has the methods such as thermocouple thermometric, thermistor temperature detecting, semiconductor thermometric, optical fiber temperature-measurement.Contactless temperature-measuring is the main infrared temperature-test technology that adopts at present, and measuring circuit and testee surface are separated, and are suitable for telemeasurement or some special occasions.
But, there are some occasions can not adopt conventional contact temperature-measuring technology, can not adopt infrared non-contact temperature measuring mode.For example when culinary art, measuring temperature is just subject to many limitations.In pot, thermometric relates to health and cleaning problems, and outside thermometric exists thermal-flame problem, and infrared measurement of temperature exists greasy dirt, smoke problem.
Therefore, be necessary to solve as above problem, propose a kind of kitchen range that adopt new thermometric mode.
[summary of the invention]
The present invention has overcome the deficiency of above-mentioned technology, and a kind of kitchen range with temp sensing function are provided, and it arranges simple and convenient, highly sensitive.
For achieving the above object, the present invention has adopted following technical proposal:
A kind of kitchen range with temp sensing function, include range base 200, described range base 200 is provided with heater 300 and pot courage 100, on described pot courage 100, be provided with the temperature-sensitive LC oscillation circuit 1 for perception pot courage 100 temperature, on described range base 200, be provided with for identifying the temperature identification module 2 of pot courage 100 temperature, described temperature-sensitive LC oscillation circuit 1 comprises oscillator coil L1 and for the temperature-sensitive capacitor C T of perception pot courage 100, described temperature identification module 2 includes controller 21 and for transmit energy to oscillator coil L1, encourages excitation/induction coil L2 of 1 vibration of temperature-sensitive LC oscillation circuit and induction temperature-sensitive LC oscillation circuit 1 frequency of oscillation, on described excitation/induction coil L2, be connected with for driving excitation/induction coil L2 to the energy-delivering excitation drive circuit 22 of oscillator coil L1, for making excitation/induction coil L2 switch to the state switching circuit 23 of sense state from foment, and respond to LC oscillation circuit 2 frequencies of oscillation so that the frequency detection circuit 24 of controller 21 identification testee temperature by excitation/induction coil L2, described excitation drive circuit 22 control signal inputs, state switching circuit 23 control signal inputs, frequency detection circuit 24 detection signal outputs are connected with controller 21 respectively.
Described excitation drive circuit 22 comprises chip LM324, resistance R 2～R6, capacitor C 2～C4, and triode Q2, described capacitor C 4 one end are connected with controller 21 1 control signal outputs as excitation drive circuit 22 control signal inputs, capacitor C 4 other ends are by resistance R 6 and resistance R 5 one end, chip LM324 in the same way input is connected, chip LM324 reverse input end ground connection, chip LM324 output and resistance R 5 other ends, capacitor C 3 one end are connected, capacitor C 3 other ends and resistance R 3 one end, resistance R 4 one end, triode Q2 base stage is connected, ground connection after described resistance R 4 other ends are connected with triode Q2 emitter stage, described resistance R 3 other ends meet power supply VCC after being connected with resistance R 2 one end, resistance R 2 other ends and triode Q2 colelctor electrode, capacitor C 2 one end are connected, capacitor C 2 other ends are connected with excitation/induction coil L2 excitation/induction end as excitation drive circuit 22 pumping signal outputs, excitation/induction coil L2 other end ground connection.
Described state switching circuit 23 comprises NMOS pipe Q1, described NMOS pipe Q1 grid is connected with controller 21 1 control signal outputs as state switching circuit 23 control signal inputs, the Q1 drain electrode of NMOS pipe and ground connection, NMOS pipe Q1 source electrode is connected with described excitation/induction coil L2 excitation/induction end as state switching circuit 23 outputs, excitation/induction coil L2 other end ground connection.
Described frequency detection circuit 24 includes signal amplification circuit 241 and the zero cross detection circuit 242 connecting in turn, described signal amplification circuit 241 signal input parts are connected with excitation/induction coil L2 excitation/induction end as frequency detection circuit 24 detection signal inputs, excitation/induction coil L2 other end ground connection, described zero cross detection circuit 242 signal output parts are connected with controller 21 detection signal inputs as frequency detection circuit 24 detection signal outputs.
Described signal amplification circuit 241 comprises integrated circuit modules D7642, capacitor C 1, and resistance R 1, described zero cross detection circuit 242 comprises chip LM324, described capacitor C 1 one end is connected with excitation/induction coil L2 excitation/induction end as signal amplification circuit 241 signal input parts, excitation/induction coil L2 other end ground connection, described capacitor C 1 other end is connected with integrated circuit modules D7642 input, integrated circuit modules D7642 earth terminal ground connection, integrated circuit modules D7642 output and resistance R 1 one end, chip LM324 in the same way input is connected, the former VCC of resistance R 1 another termination electricity, chip LM324 reverse input end ground connection, chip LM324 output is connected with controller 21 detection signal inputs as zero cross detection circuit 242 detection signal outputs.
Between oscillator coil L1 as above and temperature-sensitive capacitor C T, be provided with insulation high-temperature-resistant pottery, described temperature-sensitive capacitor C T presses close to described pot courage 100, and described oscillator coil L1 is in outside.
Heater 300 as above is electrically connected to described controller 21, is also provided with the control panel being connected with described controller 21 on described range base 200.
Compared with prior art, the invention has the beneficial effects as follows:
1, adopted separate type thermometric mode, it arranges simple and convenient, and temperature-sensitive LC oscillation circuit is arranged on pot courage, it is highly sensitive, and temperature identification module is arranged in range base, realizes separate type thermometric, wherein, the capacitance C=f (T) of temperature-sensitive capacitor C T, the frequency of oscillation of temperature-sensitive LC oscillation circuit
draw
frequency detection circuit is by excitation/induction coil L2 induction temperature-sensitive LC oscillation circuit frequency of oscillation f, the transmission of its wave frequency signal is affected by environment little, controller accurately records temperature-sensitive LC oscillation circuit frequency of oscillation by frequency detection circuit, thereby calculates pot courage temperature T;
2, only adopted an inductance coil as excitation/induction coil L2, realize incentive functions and inducing function, its structure is concise, between controller and excitation/induction coil L2, be connected with and make excitation/induction coil L2 from foment, switch to the state switching circuit of sense state, in the time will controlling excitation/induction coil L2 and proceed to sense state from foment, controller is controlled excitation drive circuit and is stopped encouraging NMOS pipe Q1 in driving and state of a control commutation circuit can consume rapidly the energy that excitation drive circuit sends to excitation/induction coil L2, thereby make excitation/induction coil L2 switch to sense state, well respond to the frequency of oscillation of temperature-sensitive LC oscillation circuit, its control is simple and convenient,
3, frequency detection circuit comprises signal amplification circuit and zero cross detection circuit 242, temperature-sensitive LC oscillation circuit frequency signal excitation/induction coil L2 being sensed by signal amplification circuit amplifies, so that zero cross detection circuit carries out zero passage detection, effectively improved the sensitivity that temperature-sensitive LC oscillation circuit frequency of oscillation is detected;
4, between oscillator coil L1 and temperature-sensitive capacitor C T, be provided with insulation high-temperature-resistant pottery, described temperature-sensitive capacitor C T presses close to described pot courage, described oscillator coil L1 is in outside, and pot courage can not affect the electromagnetic radiation of oscillator coil L1 like this, so that temperature identification module receives signal;
5, use the kitchen range of this case separate type thermometric mode can add for electric cooker, gas range combination or other kitchen range of pot courage, its separate type thermometric mode applicability is good, is easy to wide range applications.
[accompanying drawing explanation]
Fig. 1 be on kitchen range of the present invention temperature-sensitive LC oscillation circuit and temperature identification module schematic diagram is set.Fig. 2 is temperature-measurement principle block diagram of the present invention.
Fig. 3 is temperature measurement circuit figure of the present invention.
[specific embodiment]
Below in conjunction with accompanying drawing, by embodiment, feature of the present invention and other correlated characteristic are described in further detail, so that technical staff's of the same trade understanding:
As Figure 1-3, a kind of kitchen range with temp sensing function, include range base 200, described range base 200 is provided with heater 300 and pot courage 100, on described pot courage 100, be provided with the temperature-sensitive LC oscillation circuit 1 for perception pot courage 100 temperature, on described range base 200, be provided with for identifying the temperature identification module 2 of pot courage 100 temperature, described temperature-sensitive LC oscillation circuit 1 comprises oscillator coil L1 and for the temperature-sensitive capacitor C T of perception pot courage 100, described temperature identification module 2 includes controller 21 and for transmit energy to oscillator coil L1, encourages excitation/induction coil L2 of 1 vibration of temperature-sensitive LC oscillation circuit and induction temperature-sensitive LC oscillation circuit 1 frequency of oscillation, on described excitation/induction coil L2, be connected with for driving excitation/induction coil L2 to the energy-delivering excitation drive circuit 22 of oscillator coil L1, for making excitation/induction coil L2 switch to the state switching circuit 23 of sense state from foment, and respond to LC oscillation circuit 2 frequencies of oscillation so that the frequency detection circuit 24 of controller 21 identification pot courage temperature by excitation/induction coil L2, described excitation drive circuit 22 control signal inputs, state switching circuit 23 control signal inputs, frequency detection circuit 24 detection signal outputs are connected with controller 21 respectively.
Described excitation drive circuit 22 comprises chip LM324, resistance R 2～R6, capacitor C 2～C4, and triode Q2, described capacitor C 4 one end are connected with controller 21 1 control signal outputs as excitation drive circuit 22 control signal inputs, capacitor C 4 other ends are by resistance R 6 and resistance R 5 one end, chip LM324 in the same way input is connected, chip LM324 reverse input end ground connection, chip LM324 output and resistance R 5 other ends, capacitor C 3 one end are connected, capacitor C 3 other ends and resistance R 3 one end, resistance R 4 one end, triode Q2 base stage is connected, ground connection after described resistance R 4 other ends are connected with triode Q2 emitter stage, described resistance R 3 other ends meet power supply VCC after being connected with resistance R 2 one end, resistance R 2 other ends and triode Q2 colelctor electrode, capacitor C 2 one end are connected, capacitor C 2 other ends are connected with excitation/induction coil L2 excitation/induction end as excitation drive circuit 22 pumping signal outputs, excitation/induction coil L2 other end ground connection.
Described state switching circuit 23 comprises NMOS pipe Q1, described NMOS pipe Q1 grid is connected with controller 21 1 control signal outputs as state switching circuit 23 control signal inputs, the Q1 drain electrode of NMOS pipe and ground connection, NMOS pipe Q1 source electrode is connected with described excitation/induction coil L2 excitation/induction end as state switching circuit 23 outputs, excitation/induction coil L2 other end ground connection.
Described frequency detection circuit 24 includes signal amplification circuit 241 and the zero cross detection circuit 242 connecting in turn, described signal amplification circuit 241 signal input parts are connected with excitation/induction coil L2 excitation/induction end as frequency detection circuit 24 detection signal inputs, excitation/induction coil L2 other end ground connection, described zero cross detection circuit 242 signal output parts are connected with controller 21 detection signal inputs as frequency detection circuit 24 detection signal outputs.
Described signal amplification circuit 241 comprises integrated circuit modules D7642, capacitor C 1, and resistance R 1, described zero cross detection circuit 242 comprises chip LM324, described capacitor C 1 one end is connected with excitation/induction coil L2 excitation/induction end as signal amplification circuit 241 signal input parts, excitation/induction coil L2 other end ground connection, described capacitor C 1 other end is connected with integrated circuit modules D7642 input, integrated circuit modules D7642 earth terminal ground connection, integrated circuit modules D7642 output and resistance R 1 one end, chip LM324 in the same way input is connected, the former VCC of resistance R 1 another termination electricity, chip LM324 reverse input end ground connection, chip LM324 output is connected with controller 21 detection signal inputs as zero cross detection circuit 242 detection signal outputs.
Between described oscillator coil L1 as above and temperature-sensitive capacitor C T, be provided with insulation high-temperature-resistant pottery, described temperature-sensitive capacitor C T presses close to described pot courage 100, and described oscillator coil L1 is in outside.
Heater 300 as above is electrically connected to described controller 21, is also provided with the control panel being connected with described controller 21 on described range base 200.
As mentioned above, the capacitance C of described temperature-sensitive capacitor C T and the relation function of temperature T have C=f (T), simple in order to make to implement, and adopt the temperature-sensitive capacitor C T of function curve C=f (T) monotonic increase or monotone decreasing in working range.
This case kitchen range thermometric process and principle are as follows:
First, controller 21 sends actuation drive signals as sine voltage signal by excitation drive circuit 22 to excitation/induction coil L2, drive excitation/induction coil L2 vibration to generate electromagnetic waves, so, excitation/induction coil L2 transmits energy to oscillator coil L1, causes 1 forced oscillation of temperature-sensitive LC oscillation circuit, after a period of time, controller 21 is controlled excitation drive circuit 22 and is stopped encouraging NMOS pipe Q1 in driving and state of a control commutation circuit 23 to quit work after consuming rapidly the upper energy of excitation/induction coil L2, so, temperature-sensitive LC oscillation circuit 1 enters damped oscillation and excitation/induction coil L2 enters sense state, the outside electromagnetic signals of oscillator coil L1 on temperature-sensitive LC oscillation circuit 1, excitation/induction coil L2 senses this signal, and amplify with zero cross detection circuit 242 and carry out zero passage detection by signal amplification circuit 241, so, controller 21 detects the frequency of oscillation of temperature-sensitive LC oscillation circuit 1 by frequency detection circuit 24.
During work, LC oscillating circuit principle, its frequency of oscillation are observed in 1 damped oscillation of temperature-sensitive LC oscillation circuit
wherein, the inductance L of oscillator coil L1 is known, and controller 21 records the size of frequency of oscillation f by frequency detection circuit 24, and the capacitance C=f (T) of temperature-sensitive capacitor C T draws formula
formula like this
in only have a unknown number T, can calculate pot courage temperature T size, then, controller 21 carrys out the heating work of control heater 300 according to the temperature T size measuring.
As mentioned above, what this case was protected is a kind of kitchen range with temp sensing function, and all technical schemes identical or close with this case structure all should be shown in the protection domain that falls into this case.
Claims (7)
1. kitchen range with temp sensing function, include range base (200), described range base (200) is provided with heater (300) and pot courage (100), it is characterized in that being provided with the temperature-sensitive LC oscillation circuit (1) for perception pot courage (100) temperature on described pot courage (100), on described range base (200), be provided with for identifying the temperature identification module (2) of a pot courage (100) temperature, described temperature-sensitive LC oscillation circuit (1) comprises oscillator coil L1 and for the temperature-sensitive capacitor C T of perception pot courage (100), described temperature identification module (2) includes controller (21) and for transmit energy to oscillator coil L1, encourages excitation/induction coil L2 of temperature-sensitive LC oscillation circuit (1) vibration and induction temperature-sensitive LC oscillation circuit (1) frequency of oscillation, on described excitation/induction coil L2, be connected with for driving excitation/induction coil L2 to the energy-delivering excitation drive circuit of oscillator coil L1 (22), for making excitation/induction coil L2 switch to the state switching circuit (23) of sense state from foment, and respond to LC oscillation circuit (2) frequency of oscillation so that the frequency detection circuit (24) of controller (21) identification testee temperature by excitation/induction coil L2, described excitation drive circuit (22) control signal input, state switching circuit (23) control signal input, frequency detection circuit (24) detection signal output is connected with controller (21) respectively.
2. a kind of kitchen range with temp sensing function according to claim 1, it is characterized in that described excitation drive circuit (22) comprises chip LM324, resistance R 2～R6, capacitor C 2～C4, and triode Q2, described capacitor C 4 one end are connected with controller (21) one control signal outputs as excitation drive circuit (22) control signal input, capacitor C 4 other ends are by resistance R 6 and resistance R 5 one end, chip LM324 in the same way input is connected, chip LM324 reverse input end ground connection, chip LM324 output and resistance R 5 other ends, capacitor C 3 one end are connected, capacitor C 3 other ends and resistance R 3 one end, resistance R 4 one end, triode Q2 base stage is connected, ground connection after described resistance R 4 other ends are connected with triode Q2 emitter stage, described resistance R 3 other ends meet power supply VCC after being connected with resistance R 2 one end, resistance R 2 other ends and triode Q2 colelctor electrode, capacitor C 2 one end are connected, capacitor C 2 other ends are connected with excitation/induction coil L2 excitation/induction end as excitation drive circuit (22) pumping signal output, excitation/induction coil L2 other end ground connection.
3. a kind of kitchen range with temp sensing function according to claim 1, it is characterized in that described state switching circuit (23) comprises NMOS pipe Q1, described NMOS pipe Q1 grid is connected with controller (21) one control signal outputs as state switching circuit (23) control signal input, the Q1 drain electrode of NMOS pipe and ground connection, NMOS pipe Q1 source electrode is connected with described excitation/induction coil L2 excitation/induction end as state switching circuit (23) output, excitation/induction coil L2 other end ground connection.
4. a kind of kitchen range with temp sensing function according to claim 1, it is characterized in that described frequency detection circuit (24) includes signal amplification circuit (241) and the zero cross detection circuit (242) connecting in turn, described signal amplification circuit (241) signal input part is connected with excitation/induction coil L2 excitation/induction end as frequency detection circuit (24) detection signal input, excitation/induction coil L2 other end ground connection, described zero cross detection circuit (242) signal output part is connected with controller (21) detection signal input as frequency detection circuit (24) detection signal output.
5. a kind of kitchen range with temp sensing function according to claim 4, it is characterized in that described signal amplification circuit (241) comprises integrated circuit modules D7642, capacitor C 1, and resistance R 1, described zero cross detection circuit (242) comprises chip LM324, described capacitor C 1 one end is connected with excitation/induction coil L2 excitation/induction end as signal amplification circuit (241) signal input part, excitation/induction coil L2 other end ground connection, described capacitor C 1 other end is connected with integrated circuit modules D7642 input, integrated circuit modules D7642 earth terminal ground connection, integrated circuit modules D7642 output and resistance R 1 one end, chip LM324 in the same way input is connected, the former VCC of resistance R 1 another termination electricity, chip LM324 reverse input end ground connection, chip LM324 output is connected with controller (21) detection signal input as zero cross detection circuit (242) detection signal output.
6. according to a kind of kitchen range with temp sensing function described in claim 1-5 any one, it is characterized in that being provided with insulation high-temperature-resistant pottery between described oscillator coil L1 and temperature-sensitive capacitor C T, described temperature-sensitive capacitor C T presses close to described pot courage (100), and described oscillator coil L1 is in outside.
7. according to a kind of kitchen range with temp sensing function described in claim 1-5 any one, it is characterized in that described heater (300) is electrically connected to described controller (21), is also provided with the control panel being connected with described controller (21) on described range base (200).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410360186.1A CN104075350B (en) | 2014-07-25 | Take cooking utensils of temperature measurement function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410360186.1A CN104075350B (en) | 2014-07-25 | Take cooking utensils of temperature measurement function |
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| CN104075350A true CN104075350A (en) | 2014-10-01 |
| CN104075350B CN104075350B (en) | 2017-01-04 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107436198A (en) * | 2016-05-27 | 2017-12-05 | 浙江绍兴苏泊尔生活电器有限公司 | Pot temperature detection system and method and induction cooker |
| CN107764427A (en) * | 2017-10-19 | 2018-03-06 | 张雁 | A kind of non contact metal temperature measuring equipment |
| CN109412534A (en) * | 2017-08-16 | 2019-03-01 | 佛山市顺德区美的电热电器制造有限公司 | Detection circuit, heating platform, cooking apparatus and appliance identification method |
| CN111551273A (en) * | 2019-02-12 | 2020-08-18 | 陈景超 | Temperature measuring method of electromagnetic induction temperature measuring device |
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| CN202567750U (en) * | 2012-06-08 | 2012-12-05 | 钟辅群 | Induction and temperature measurement electromagnetic oven cooking utensil |
| CN203964039U (en) * | 2014-07-25 | 2014-11-26 | 华帝股份有限公司 | Cooking utensils device with temperature detect function |
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| DE4006885A1 (en) * | 1989-04-05 | 1990-10-11 | Siemens Ag | Contactless temp. measurement sensor esp. for vehicle brake discs - has LC combination on disc inductively coupled to fixed transmitter during measurement periods |
| JPH0466826A (en) * | 1990-07-09 | 1992-03-03 | Matsushita Electric Ind Co Ltd | Temperature detector and heater for cooking using the same |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107436198A (en) * | 2016-05-27 | 2017-12-05 | 浙江绍兴苏泊尔生活电器有限公司 | Pot temperature detection system and method and induction cooker |
| CN109412534A (en) * | 2017-08-16 | 2019-03-01 | 佛山市顺德区美的电热电器制造有限公司 | Detection circuit, heating platform, cooking apparatus and appliance identification method |
| CN107764427A (en) * | 2017-10-19 | 2018-03-06 | 张雁 | A kind of non contact metal temperature measuring equipment |
| CN111551273A (en) * | 2019-02-12 | 2020-08-18 | 陈景超 | Temperature measuring method of electromagnetic induction temperature measuring device |
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