CN2679676Y - Gemstone detecting discriminator controlled single processor - Google Patents
Gemstone detecting discriminator controlled single processor Download PDFInfo
- Publication number
- CN2679676Y CN2679676Y CN 200420007929 CN200420007929U CN2679676Y CN 2679676 Y CN2679676 Y CN 2679676Y CN 200420007929 CN200420007929 CN 200420007929 CN 200420007929 U CN200420007929 U CN 200420007929U CN 2679676 Y CN2679676 Y CN 2679676Y
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- circuit
- jewel
- instrument
- monolithic processor
- processor controlled
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- Expired - Lifetime
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- 239000010437 gem Substances 0.000 title claims abstract description 56
- 229910001751 gemstone Inorganic materials 0.000 title claims abstract description 46
- 239000002184 metal Substances 0.000 claims abstract description 13
- 229910052751 metal Inorganic materials 0.000 claims abstract description 13
- 230000005611 electricity Effects 0.000 claims abstract description 10
- 238000005070 sampling Methods 0.000 claims abstract description 7
- 238000001514 detection method Methods 0.000 claims description 29
- 239000000523 sample Substances 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 229910001006 Constantan Inorganic materials 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 2
- 239000010432 diamond Substances 0.000 abstract description 30
- 229910003460 diamond Inorganic materials 0.000 abstract description 29
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 230000003321 amplification Effects 0.000 abstract description 4
- 238000003199 nucleic acid amplification method Methods 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000003786 synthesis reaction Methods 0.000 abstract 1
- 229910003465 moissanite Inorganic materials 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000002194 synthesizing effect Effects 0.000 description 3
- WKBPZYKAUNRMKP-UHFFFAOYSA-N 1-[2-(2,4-dichlorophenyl)pentyl]1,2,4-triazole Chemical compound C=1C=C(Cl)C=C(Cl)C=1C(CCC)CN1C=NC=N1 WKBPZYKAUNRMKP-UHFFFAOYSA-N 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011031 topaz Substances 0.000 description 2
- 229910052853 topaz Inorganic materials 0.000 description 2
- 229910052845 zircon Inorganic materials 0.000 description 2
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 2
- 241000238876 Acari Species 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The utility model provides a gemstone detecting discriminator controlled by the SCM, comprising a sensor sampling circuit, an amplification circuit, a comparison circuit, an SCM controlling circuit, a DC-DC conversion circuit, a display and a power supply part which provides the electricity towards each part. The sensor sampling circuit is connected with the amplification circuit. The amplification circuit is connected with the comparison circuit, and the comparison circuit is connected with the SCM circuit. The SCM circuit is connected with the DC-DC conversion circuit, and the SCM is also connected with the display. The DC-DC conversion circuit is connected with the SCM through a conductance loop. A detecting person can distinguish and confirm the imitation diamond, the natural diamond and the synthesis diamond and the metal products at one time by using the circuit gemstone detecting discriminator of the utility model.
Description
Technical field
The utility model relates to a kind of detecting instrument, and particularly a kind of Single-chip Controlling jewel detection of large scale integrated circuit that adopts is differentiated instrument.
Background technology
" diamond " that is used for Jewelry product at jewel circle often have imitative diamond, as zircon CZ, synthetic GGG, spinel, topaz or the like, the synthesizing diamond that just occurs recent years is also arranged, as synthetic moissanite (Mo Sangshi), also have the pure natural diamond.They incorporate different commodity categories with different purposes into separately with different consumer objects, all have the right to have a legal seat on jewelry market, and it is justifiable objectively to say so.Because these jewels are all quite similar from surface observation, its color, gloss, flash of light, transparency, even many physical characteristicss, also very approaching as proportion, refractive index, chromatic dispersion, hardness etc., therefore to differentiate these jewels in order distinguishing, to adopt two functional jewels of traditional secondary detection method or prior art to detect the discriminating instrument usually.Traditional way is to distinguish imitative diamond and diamond with the thermal conductance instrument earlier, determines to distinguish rough diamond or synthesizing diamond with conductivity meter again behind the diamond promptly so-called secondary detection method; Can certainly select for use two functional jewels of prior art to detect identifier, accomplish one-time detection.Just because of the circuit design reason, the effect of these ways often can't make the user satisfied fully.Facts have proved, these two kinds of methods exist step many, waste time and energy, anti-interference is poor, the defective that reliability is lower.
Claim that more than conductivity meter is meant the synthetic moissanite detector, the patent No.: 01264391.2.
The two functional jewel detectors that more than claim prior art, the patent No.: 03236264.1.
Summary of the invention:
It is poor that fundamental purpose of the present utility model is to overcome, improve the anti-interference that has the existence of two functional jewels detection authentication technique now, at the bottom of the reliability, can not detect the deficiency and the defective of metal object; And provide a kind of jewel detection by the singlechip-control all-digital circuit to differentiate that instrument, technical problem underlying to be solved are that design successfully be intelligentized jewel detection discriminating instrument of basic structure, the computing by single-chip microcomputer, control, output composition of instrument control core with the single-chip microcomputer.It makes that the operator is more convenient, simple and direct, complete machine is in light weight, portable except all advantages that possess existing instrument equally, also increased metal object prompt facility, external power interface.
The monolithic processor controlled jewel detection of the utility model differentiates that the detection mechanism of instrument is to be based upon on the basis of intrinsic thermal conductivity, conductivity difference and metallic conductivity of imitative diamond, rough diamond, synthetic moissanite three class jewels.The signal that utilize the different thermal conductivities that exist between them and conductivity, obtains by sensor probe shows testing result through single-chip microcomputer computing, control, output order.
The thermal conductivity of three class jewels, conductivity values reference table one
Table one
The jewel title | Thermal conductivity W/CMK during 300K | Conductivity Ω M |
Rough diamond | 7-25 | 10 -18 |
Synthetic moissanite | 5-22 | 10 -15 |
Imitative diamond | 0.2-0.02 |
During the circuit design of the monolithic processor controlled jewel detection identifier of the utility model, at first consider the notable difference that utilized imitative diamond and diamond, synthetic moissanite on thermal conductivity, to exist; Differ tens as can be known to hundreds of times from table one.Whether the thermopair thermocurrent that the generation heat-conduction effect causes when contacting with tested jewel by sensor probe has reached the value that circuit is set.If not reaching this is worth then instrument can only be the red luminotron that shows imitative diamond lights several or what reflection and also do not have.Just there is signal to deliver to the input interface of single-chip microcomputer if met or exceeded setting value, changes conductivity automatically over to through computing, circuit and detect; Two green LED of the low person's single-chip microcomputer output of conductivity diamond command display are lighted and are diamond with the hummer tested jewel of cry prompting that ticks; Two blue look LED of the instruction of the high person's single-chip microcomputer of conductivity output synthetic moissanite, display light and voiceless sound to point out tested jewel be synthetic moissanite.As the instruction of the then single electric sheet output metal of the metal object that detects conduction, the high-frequency calling that a yellow LED lamp of display is lighted and sent with hummer, prompting detects the metal object around the jewellery, reminds the operator to move wrong should resurveying once.
The purpose of this utility model and solve its technical problem underlying and realize by the following technical solutions.According to the utility model proposes monolithic processor controlled jewel detection identifier.Form by senser sampling circuit, amplifying circuit, comparator circuit, single-chip microcomputer computing circuit, DC-DC boost conversion circuit display and power unit.Wherein said senser sampling circuit is connected with amplifying circuit; Described amplifying circuit is connected with comparator circuit; Described comparator circuit is connected with single chip circuit; Described single chip circuit is connected with the DC-DC translation circuit; Described DC-DC translation circuit boosts after electricity is led and detected the loop and be connected with single-chip microcomputer; After single-chip microcomputer computing, control output order be connected with display; Display then with do not share the same light, sound, signal shows testing result.
Monolithic processor controlled jewel detection described in the utility model is differentiated instrument, wherein said sensor provides second mate's thermopair of constant temperature to form by the metalfilmresistor heating, it promptly is their common hot junction that resistance produces thermal source, and their cold junction connects to form differential amplifier with the positive and negative input end of amplifier respectively by resistance.
Monolithic processor controlled jewel detection described in the utility model is differentiated instrument, the conductor that it is characterized in that wherein said second mate's thermopair all is to be made by diameter of phi 0.7mm copper wire and two kinds of thermode materials of diameter of phi 0.13mm constantan wire, wherein copper thermode is that the shared double as electricity of going back is led detector probe, and the electrical conductive joint of second mate's thermopair is distributed in two Side of heating resistor.
Differential amplifier described in the utility model is the amplifier that output signal and described comparator threshold level signal compare.
The voltage comparator that comparer described in the utility model is made up of two integrated chips.
Single-chip microcomputer described in the utility model is 8 8-digit microcontrollers;
DC-DC transducer described in the utility model is a switching mode DC-DC supply convertor.
Display described in the utility model is LED light-emitting section and hummer.
The method that the utility model adopts the copper probe of current-carrying plate, human body, tested jewel, sensor to form electric loop is obtained conductance signal (referring to Fig. 4)
Monolithic processor controlled jewel detection described in the utility model is differentiated instrument, it is characterized in that wherein said single-chip microcomputer design program to thermal conductance, electricity lead, metal signal and shutdown programm is controlled and computing; And output command adapted thereto driving display and electronic switch.
The characteristic that the utility model adopts the Single-chip Controlling on extensive integrated road and its reliability of computing, anti-interference, economize on electricity, operability aspect obviously to be better than prior art to be possessed, can deserve to be called intelligentized instrument, be singlechip technology is identified application in jewel detection forerunner.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and embodiments.
Fig. 1 is the circuit block diagram of the utility model Single-chip Controlling jewel detection identifier;
Fig. 2 is the circuit theory diagrams that the utility model Single-chip Controlling detects identifier;
Fig. 3 is the structure and the connection layout of sensing;
Fig. 4 is a conductance loop signal detecting method synoptic diagram.
Embodiment
See also shown in Figure 1ly, Fig. 1 is the circuit block diagram of the utility model Single-chip Controlling jewel detection identifier.Comprise senser sampling circuit 1; Amplifying circuit 2; Comparator circuit 3; Single-chip microcomputer computing circuit 4; DC-DC translation circuit 5; Display 6; And power unit is formed.
The sensor sample circuit is made up of heating resistor and second mate's thermopair.Its hot junction contacts with jewel by probe; Cold junction is connected with the positive and negative input end of amplifier by resistance.
Above-mentioned amplifying circuit 2 be the single amplifier chip of the little power consumption of a slice high precision for example TL1007 be connected into and give comparator circuit after differential amplifier circuit amplifies the faint level signal of obtaining from sensor.
Above-mentioned comparator circuit is made up of the two little power consumption four high guaily unit of low-voltage chips.For example TLV2324 is connected into the level of different threshold values and signal that above-mentioned amplifier is sent here compares; U wherein
6BBe used for the thermal conductance level relatively; U
6ABe used for metal relatively; U
6C, U
6D, U
7B, U
7C, U
7DThe imitative diamond level ratio that is respectively applied for different thermal conductivities.
Above-mentioned single-chip microcomputer is a slice 8-bit microprocessor chip.For example AT89C2051 to thermal conductance, electricity lead, metal signal carries out output corresponding instruction signal after the computing.
Above-mentioned DC-DC translation circuit 5 be the switching mode chip for example TL1316 instruction that single-chip microcomputer is sent here cooperate the High Voltage Power Supply that produces about 350V to lead the loop to detect and use with external step-up transformer.
Aforementioned display device adopts the light-emitting section of being made up of 12 different color LEDs.For example: TOA-L4127LEGYE5BZG-2-9B and a DHT-15 type piezoelectric ceramics piezo.
See also shown in Figure 2ly, Fig. 2 is the circuit theory diagrams of the monolithic processor controlled jewel detection identifier of the utility model, and structure of the present utility model and testing process more specifically are described below.
Sensor 1 (see figure 3) is made up of heating resistor 31 and second mate's thermopair 33, and this heating resistor 31 is 22 Ω metalfilmresistors of a 1/16W, powers heating, heating-up temperature about 45 ℃ by constant voltage.Second mate's thermopair 33 all is to be that two enamel-cover constantan wires 331 of 0.13mm are made with 332, two kinds of thermode materials of diameter of phi 0.7mm copper wire with diameter, and this diameter of phi 0.7mm copper wire 332 is gone back the double as electricity and led detector probe 32; Earlier heating resistor 31 is bundled on the probe 32; The hot junction of second mate's thermopair 33 is welded on the and arranged on left and right sides of heating resistor 31 respectively; Probe 32 ground connection.This sensor 1 has two effects, and first thermal conductance signal obtains; It two is the conductance signals that obtain tested jewel by the electric loop that probe 32, jewel 100, human body 200, current-carrying plate 300 forms.The thermal conductance signal that obtains passes through resistance R
2, R
4Be connected to differential amplifier U
1Conductance signal then passes through R
33Be connected to Sheffer stroke gate U
2BOn.
At first the discriminating principle of diamond and diamond is imitated in explanation, from above-mentioned table one as can be known the thermal conductivity of diamond and synthetic moissanite (or claiming synthesizing diamond) be tens times even hundreds of times of imitative diamond, so design has determined that some numerical value is as threshold value such as Fig. 2 of distinguishing them, U in testing circuit
6B5 pin level values promptly be this threshold value, above earth potential is 2.03V.
Please refer to Fig. 4, sensor probe contacts with tested jewel during detection; Have following four kinds of situations to occur:
If 1 tested jewel 100 is the extremely low jewels of thermal conductivity, for example, glass, plastic cement, zircon materials such as (CZ), the temperature-resistant or variation in probe 32 hot junctions is very little, and thermopair bad student thermocurrent is very little, passes through resistance R
2, R
4Deliver to differential amplifier U
1Though 2 pin and 3 pin through U
1Amplify and deliver to comparer, but its level value is much smaller than U
6, U
7The threshold value that sets, comparer U
6B7 pin no signals output, single-chip microcomputer 400 do not have any instruction output yet; The state of equipment circuit is constant, and display can appearance sound, the light prompting.
If the thermal conductivity of 2 tested jewels 100 is not materials such as extremely low jewel, for example topaz, crystal; U
16The output level of pin might be higher than U
6C, U
6D, U
7C, U
7D, U
7BThe threshold level that sets.But still little flat U
6B5 pin level, then connect the L of these output terminals
D4, L
D5, L
D6, L
D7, L
D8Red luminotron can light several, pointing out tested jewel 100 is imitative diamonds of different thermal conductivities, but can not determine it is which kind of jewel.
If during 3 tested jewels 100 jewel that to be thermal conductivities very high, then the temperature in probe 32 hot junctions rapidly conduction give jewel 100, thermopair produces bigger thermocurrent, its level signal is passed through resistance R
2, R
4Deliver to differential amplifier U
12 pin and 3 pin through U
1Deliver to comparer U after the amplification
6B6 pin; At this moment, its level is greater than U
6BThe threshold level 2.03V of 5 pin; U
6B7 pin be that the output low level signal is given single-chip microcomputer U
53 pin, through computing at U
514 pin output low levels give U
2C9.10 pin, anti-phase back 8 pin output high level is given U
37 pin; Through U
3Export DC350V left and right sides voltage is led detection as electricity high-voltage power supply with the step-up transformer conversion; U
514 pin low levels also trigger simultaneously Q
2Make its conducting, relay R L
1Logical, the RL of 3-4 contact
2The 5-6 contact logical, the electric loop (see figure 4) that high voltage forms by current-carrying plate 300, human body 200, tested jewel 100, the copper probe 32 of sensor.At this moment, if tested jewel 100 are 6 pin output high level of the diamond of low conductivity then U2B, through the computing of single-chip microcomputer U5 at U
515 pin output high level, through U
4B4,5 pin, anti-phase back U
4B6 pin output low levels, two green lights of LED of display lighting bar light U simultaneously
519 pin also output low level through U
4A1,2 pin, anti-phase back U
4A3 pin output high level, making hummer send calling, instrument synchronously, to point out tested jewel simultaneously with acousto-optic be diamond.If tested jewel is the synthetic moissanite (Mo Sangshi) of high conductivity then U
2B6 pin output low level signals through single-chip microcomputer U
5After the computing at U
516 pin output high level, through U
4C9.10 pin, anti-phase back U
4C8 pin output low levels, two blue lamps of LED of driving display light-emitting section light; U
519 pin output order not, the tested jewel of prompting takes place voiceless sound is synthetic moissanite.
If 4 probes touch the metal object 500 of conduction then U
6ADrop-down, the single-chip microcomputer U of 2 pin current potentials
5The instruction of 17 pin output metal, amber light of the LED of display lighting bar is lighted, simultaneously U
519 pin go out to export the high-frequency tweeting sound that high level sends hummer synchronously, the prompting probe touches the metal object around the jewellery, it is wrong to remind the operator to move, and should resurvey once.
Single-chip microcomputer has also designed the function of 6 minutes automatic powered-downs, when the user did not work in continuous 6 minutes, and U
518 pin can output low level signal through R
44Trigger Q
6, Q
5Powered-down; U
519 pin also simultaneously output pulse signal hummer is intermittently piped remind the timely powered-down switch of user.
In addition, the DC-DC supply convertor of the LT1316 switching mode of selecting for use is that a slice conversion ratio reaches efficient little power consumption chip of 90%, and has the low-voltage battery measuring ability; When the power supply supply voltage was lower than 3.2V, the low pressure of display lighting bar indication warning red light was lighted, and the prompting user should in time change battery to guarantee that detection accurately.
So far, instrument has been finished whole testing process, in order more to clearly demonstrate problem, is represented with graphical method again:
Described model, specification and the advance etc. of detection mechanism of the present utility model, circuit theory and the course of work, sensor construction feature and selected important electronic devices and components above in detail, it is a kind of intelligentized instrument.
Claims (6)
1. differentiate instrument by monolithic processor controlled jewel detection for one kind, include senser sampling circuit, amplifying circuit, comparator circuit, single chip machine controlling circuit, DC-DC translation circuit, display and to the power unit of each several part power supply;
It is characterized in that:
Described senser sampling circuit is connected with described amplifying circuit;
Described amplifying circuit is connected with described comparator circuit;
The comparator circuit of narrating is connected with described single chip circuit;
Described single chip circuit is connected also with described DC-DC translation circuit and is connected with display;
Described DC-DC translation circuit is connected with described single-chip microcomputer again by conductance loop.
2. monolithic processor controlled jewel detection according to claim 1 is differentiated instrument, it is characterized in that wherein said sensor provides second mate's thermopair of constant temperature to form by the metalfilmresistor heating, it promptly is their common hot junction that resistance produces thermal source, and their cold junction connects to form differential amplifier with the positive and negative input end of amplifier respectively by resistance.
3. monolithic processor controlled jewel detection according to claim 2 is differentiated instrument, the conductor that it is characterized in that wherein said second mate's thermopair all is to be made by diameter of phi 0.7mm copper wire and two kinds of thermode materials of diameter of phi 0.13mm constantan wire, wherein the copper wire thermode is that the shared double as electricity of going back is led detector probe, and the electrical conductive joint of second mate's thermopair is distributed in two Side of heating resistor.
4. monolithic processor controlled jewel detection according to claim 2 is differentiated instrument, it is characterized in that wherein said differential amplifier is the amplifier that output signal and described comparator threshold level signal compare.
5. monolithic processor controlled jewel detection according to claim 1 is differentiated instrument, it is characterized in that wherein said single-chip microcomputer design program to thermal conductance, electricity lead, metal signal and shutdown programm is controlled and computing; And output command adapted thereto driving display and electronic switch.
6. monolithic processor controlled jewel detection according to claim 1 is differentiated instrument, it is characterized in that the copper probe of wherein said current-carrying plate, human body, tested jewel sensor is formed an electric loop that obtains conductance signal.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN 200420007929 CN2679676Y (en) | 2004-03-17 | 2004-03-17 | Gemstone detecting discriminator controlled single processor |
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CN 200420007929 CN2679676Y (en) | 2004-03-17 | 2004-03-17 | Gemstone detecting discriminator controlled single processor |
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Publication Number | Publication Date |
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CN2679676Y true CN2679676Y (en) | 2005-02-16 |
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CN 200420007929 Expired - Lifetime CN2679676Y (en) | 2004-03-17 | 2004-03-17 | Gemstone detecting discriminator controlled single processor |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102012395A (en) * | 2009-09-07 | 2011-04-13 | 北京谊安医疗***股份有限公司 | Method for correcting sensor for oxygen detection equipment |
CN106525730A (en) * | 2015-09-09 | 2017-03-22 | 深圳迪凯工贸有限公司 | Gem material detector and identification method thereof |
CN110470698A (en) * | 2019-09-02 | 2019-11-19 | 武汉研益珠宝科技有限公司 | A kind of emerald identification method and device |
CN112034000A (en) * | 2020-09-02 | 2020-12-04 | 温州市科丰仪器仪表有限公司 | Gem identification device and method based on thermal conductivity and surface resistivity |
-
2004
- 2004-03-17 CN CN 200420007929 patent/CN2679676Y/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102012395A (en) * | 2009-09-07 | 2011-04-13 | 北京谊安医疗***股份有限公司 | Method for correcting sensor for oxygen detection equipment |
CN106525730A (en) * | 2015-09-09 | 2017-03-22 | 深圳迪凯工贸有限公司 | Gem material detector and identification method thereof |
CN110470698A (en) * | 2019-09-02 | 2019-11-19 | 武汉研益珠宝科技有限公司 | A kind of emerald identification method and device |
CN112034000A (en) * | 2020-09-02 | 2020-12-04 | 温州市科丰仪器仪表有限公司 | Gem identification device and method based on thermal conductivity and surface resistivity |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee |
Owner name: ROOM 606, BUILDING 7, TIANSHENG GARDEN, ROAD EAST, Free format text: FORMER NAME OR ADDRESS: ROOM 606, BUILDING 7, WUSHENG GARDEN, ROAD EAST, XUE YARD, WENZHOU CITY, ZHEJIANG PROVINCE |
|
CP03 | Change of name, title or address |
Patentee address after: Wenzhou City, Zhejiang Province, East Tiansheng Garden 7 Room 606 Patentee address before: Room 7, building 606, non Sheng garden, College East Road, Wenzhou, Zhejiang |
|
C17 | Cessation of patent right | ||
CX01 | Expiry of patent term |
Expiration termination date: 20140317 Granted publication date: 20050216 |