CN105899956A - Method for measuring a temperature - Google Patents
Method for measuring a temperature Download PDFInfo
- Publication number
- CN105899956A CN105899956A CN201480057312.4A CN201480057312A CN105899956A CN 105899956 A CN105899956 A CN 105899956A CN 201480057312 A CN201480057312 A CN 201480057312A CN 105899956 A CN105899956 A CN 105899956A
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- voltage drop
- conductive material
- temperature
- current sensor
- electric current
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 239000004020 conductor Substances 0.000 claims abstract description 39
- 238000005259 measurement Methods 0.000 claims description 23
- 238000002474 experimental method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 8
- 238000001514 detection method Methods 0.000 description 7
- 238000004590 computer program Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229910000896 Manganin Inorganic materials 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Current Or Voltage (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
The invention relates to a method for measuring a temperature (26) in a current sensor (24), which comprises a first electrically conductive material (32) and a second electrically conductive material (34) connected in series with the first electrically conductive material (32), through both of which electrically conductive materials an electric current flows (20), comprising: detecting a reference potential (40) on the first or second electrically conductive material (32, 34) on the basis of a first voltage drop (28) on the first electrically conductive material (32); detecting, preferably on the basis of the reference potential (40), a second voltage drop (30) on the second electrically conductive material (34); and determining the temperature (26) on the basis of a comparison (58) of the first voltage drop (28) and the second voltage drop (30).
Description
Technical field
A kind of method that the present invention relates to temperature for measuring in current sensor.
Background technology
Such as, in DE 10 2,005 039 587 A1 with in current sensor measurement to Vehicular battery and from Vehicular battery electric current out, the measuring cell being wherein made up of manganin manganin alloy is welded between two contact resistances being made up of copper playing terminal effect.
Summary of the invention
The task of the present invention is to improve for the known method carrying out current measurement.
This task is solved by the feature of independent claims.Preferably expansion scheme is the theme of dependent claims.
According to one aspect of the present invention, a kind of method of temperature for measuring in current sensor includes:
-the first voltage drop on the first conductive material is detected with the reference potential on the first or second conductive material for starting point,
-the second voltage drop of preferably detecting on the second conductive material with described reference potential for starting point, and
-contrast based on the first voltage drop Yu the second voltage drop determines temperature,
Wherein said current sensor includes the first conductive material and the second conductive material connected of connecting with the first conductive material, and said two conductive material all has electric current to flow through.
The consideration that the method illustrated is based on is: current sensor, is especially wired in the electrical power path of battery in time being used for measurement as beginning is mentioned in Vehicular battery or electric current out from Vehicular battery at described current sensor.Especially, if current sensor so-called Ohm splitter or measurement diverter (hereinbelow referred to as measuring cell) construct, electric current to be measured in the range of it is according to being determined measuring the voltage drop caused on diverter by described electric current to be measured, then the wiring around described power flow may result in the undesirable side effect substantially can awared due to high electric current and the associated loss power occurred.Main reason is that: measuring cell can by occur high electric current and from there through formed loss power and be heated consumingly.
May occur in which the temperature exceeding well over 125 DEG C termly.In this case, because to external contact position, such as arrive the contact resistance of bus-bar (Stromschiene) or cable due to such as spiral connect or bad electrical contact in the range of the terminal position of corrosion and can have much higher resistance, make the electrical loss power landing much higher on described contact site, so this problem can be degraded further according to described contact resistance.This causes: measuring cell can generate heat further, and on the one hand this be dangerous for being positioned at the electronic installation near current sensor.But, on the other hand for whole system, it is also apparent from fire hazard.
Additionally, had an effect on the measuring accuracy of whole measurement chain by heat produced by loss power, described measurement chain generally comprises measuring cell, amplifier and analog/digital converter.Although in order to avoid this problem may attempt the measurement terminal wiring on measuring cell as closely as possible by being used for detection voltage drop on measuring cell, but the success of this measure is extremely limited.
Alternatively it is possible to the temperature can measured in current sensor.By the cooling of suitable compensation method, such as circuit, emergency switching-off, power adjustments, or by the compensation in the calculating of measurement result, the deviation of appearance may be compensated.Although placed temperature sensor directly (on current sensor) may be passed through or indirectly carries out temperature detection (near current sensor), but especially in large-scale production, the temperature sensor placed can improve necessary single-piece and spend with awaring.Even if additionally, directly temperature survey relatively says that meeting is more more reliable than indirectly temperature survey, also only direct temperature survey can be realized with the highest cost expenses.Alternatively, loss power may be detected and be considered as the basis of the compensation for being previously mentioned before.But, in this case, the degree of accuracy of compensation is the lowest.
Here starting illustrated method, the consideration that described method is based on is: in measuring cell, and its resistance changes according to temperature.In other words, it is possible to temperature can directly be determined by detecting measuring cell and thus detect the resistance of the first conductive material.But, measuring cell not detection resistance but detection voltage drop, wherein except comprising electric current to be detected with temperature in addition to the resistance that ground changes yet.
In order to remove this electric current, the method suggestion illustrated by utilization also detects voltage drop, wherein comprises at least one contact resistance and thus comprises the second conductive material.Contact resistance and measuring cell have temperature history the most devious, the most different voltage temperature characteristic curves.In other words, the resistance on contact resistance and on measuring cell differently develops according to temperature.Thus, contrast if the voltage drop that said two is detected the most such as constitutes (Quotientenbildung) by business, from measure, so remove electric current and directly obtain the reliable measured value for the temperature around current sensor, and additional temperature sensor will not be required.Thus, the temperature around current sensor can reliably and cost-effectively be detected.
In principle, in order to detect the temperature around current sensor, can use each arbitrarily, is the most also the electric current being additionally useful for temperature detection.But, to be used as electric current (and removing followed by contrasting) by the electric current of current sensor measurement in the way of particularly suitable, because being required for other electric add ons, such as oneself current source by this way.
For temperature survey, the first conductive material and the second conductive material can be integrated in arbitrary electric device, described first conductive material and described second conductive material are measured voltage drop.But, measuring cell, the material such as measuring diverter are selected as the first conductive material particularly suitablely, the current related measurement voltage to be measured of landing and current sensor on described measuring cell.In this way it is possible to be used for the most together measuring temperature by the structure originally existed for current measurement in current sensor.
It is known that in order to measure voltage drop, the reference potential applied on measurement diverter in particularly advantageous expansion scheme is required, because by this way, only another on the position with the second conductive material measures point is required.
First and second conductive materials to be involved below further.It is only important that it is distinct between the two material.Thus, however, it would be possible to relating to same material type, wherein said difference such as can be the length of material or be the volume of the two material.
In the additional expansion scheme of illustrated method, current sensor has at least one and measures the circuit terminal with the second conductive material for carrying or draw away electric current to be measured that diverter is connected.In order to realize illustrated method, on the described circuit terminal with the second conductive material being different from the first conductive material natively existed, it is thus only necessary to such as by engage (Bonden), welding (Loeten) or conduct electricity gluing (Leitkleben) an additional electric wire is made electrical contact with.Then, suitable signal processing apparatus can be utilized to carry out analysis temperature according to all information being achieved in that.
In order to contrast said two voltage drop, it is possible to use such as subtraction, be correlated with or arbitrary mathematical operation convolution.It is particularly preferred that in the range of another expansion scheme of illustrated method, form the business of said two voltage drop to contrast the first voltage drop and the second voltage drop.The consideration that this expansion scheme is based on is: in the range of Ohm's law, and the voltage drop detected is made up of with the resistance entered in corresponding detected voltage drop current coefficient to be detected.But, described electric current is identical according to principle for two voltage drops so that this electric current can be divided out (herauskuerzen) in the range of the business being previously mentioned before is constituted.
In the range of the another embodiment of illustrated method, clear and definite temperature can be associated as temperature to be measured with the business so formed in characteristic curve.Such characteristic curve to be deposited in memorizer in program technic mode in a straightforward manner and can be called when needed in the case of not having big calculating to spend.
In a special expansion scheme, such as, can determine clear and definite temperature according to experiment in advance by series of tests.
It is another aspect of this invention to provide that control equipment is established as performing according to the method one of the claims Suo Shu.
In the illustrated expansion scheme controlling equipment, illustrated equipment has memorizer and processor.Here, illustrated method is deposited in memorizer in the form of a computer program, and if described computer program be loaded into processor from memorizer, then described processor be arranged for implement this method.
It is another aspect of this invention to provide that computer program includes program code devices, in order to if be carried out in computer or illustrated equipment one of described computer program, then perform the institute of illustrated method in steps.
According to another aspect of the present invention, computer program comprises program code, described program code is stored in computer-readable data medium, and if described program code be carried out on data processing equipment, the most described program code perform illustrated by method in one.
It is another aspect of this invention to provide that current sensor includes illustrated control equipment.
It is another aspect of this invention to provide that vehicle includes illustrated control equipment.
Accompanying drawing explanation
The characteristic described above of the present invention, feature and advantage and how to realize these characteristics, the ways and means of feature and advantage become more apparent upon about the description to embodiment hereafter and are significantly more intelligible, described embodiment is explained further about accompanying drawing, wherein:
Fig. 1 shows the schematic diagram of the vehicle with electric driver；
Fig. 2 shows the schematic diagram of the current sensor of the vehicle from Fig. 1；
Fig. 3 shows the circuit diagram of the current sensor of Fig. 2；
Fig. 4 shows the current measurement result change about temperature of the current sensor of Fig. 3；And
Fig. 5 shows the temperature measurement result of the current sensor of Fig. 3.
In the drawings, identical technology essential factor is equipped with identical reference marks and is only described once.
Detailed description of the invention
With reference to illustrate Fig. 1 of the schematic diagram of the vehicle 2 with electric driver 4.
In the range of this embodiment, vehicle 2 should exemplarily have front-wheel drive, and in described front-wheel drive, electric driver 4 includes the motor 6 being driven the front-wheel 10 of vehicle 2 by drive shaft 8.The trailing wheel 12 of vehicle 2 thus be free pulley.
In the present embodiment, the motor 6 of electric driver 4 by electric transducer 14 with a kind of well known to itself by the way of carried out supply of electrical energy 18 by Vehicular battery 16.To this end, Vehicular battery 16 provides electric current 20, the most described electric current 20 is converted to the electric energy 18 being suitable to drive motor 6 by transducer 14 by the control equipment being configured to engine control system 22.To this end, the control signal well known to engine control system 22 utilization itself manipulates transducer 14.
In order to meet task miscellaneous (the charged state management of such as Vehicular battery 16), engine control system 22 must detect, by current sensor 24, the electric current 20 provided by Vehicular battery 16.
Here, in the range of the present embodiment, also detect the ambient temperature 26 around current sensor 24 in addition to electric current 20.Measure to realize said two, current sensor 24 exports the first magnitude of voltage 28 and the second magnitude of voltage 30, described first magnitude of voltage 28 and the second magnitude of voltage 30 should be explained according to Fig. 2 and 3 below further, illustrate current sensor 24 using schematic diagram and as circuit diagram accordingly in described Fig. 2 and 3.
In the present embodiment, current sensor 24 has the measurement diverter 32 being made up of the first conductive material as measuring cell, and described measurement diverter 32 can be electrically integrated in the electric driver 4 of Fig. 1 by the terminal component 34 that two are made up of the second conductive material.First conductive material of described measurement diverter 32 such as can include manganin manganin alloy and such as weld together with said two terminal component 34.Second conductive material of said two terminal component 34 such as can include copper.So, said two terminal component 34 is formed at the contact resistance between the remaining component of electric driver 4 and measurement diverter 32.
In order to measure electric current 20, current sensor 24 has the first electric terminal 36 and the second electric terminal 38, by described first electric terminal 36 and described second electric terminal 38, can detect accordingly from the point of view of the direction of electric current 20 at the first electromotive force 40 measured before diverter 32 and the second electromotive force 42 after measurement diverter 32.In the present embodiment, the electromotive force 40,42 that said two is detected is fed to the first difference amplifier 44.Said two electromotive force 40,42 is subtracted from one another and so calculates the first voltage drop 28 by the first difference amplifier 44, and landing on diverter 32 is being measured in the most described first voltage drop 28.Thus, may determine that electric current 20 based on the first voltage drop 28.
As mentioning such as has already been, in addition to electric current 20, also should determine the temperature 26 around current sensor 24.
To this end, current sensor 24 has the 3rd electric terminal 46, described 3rd electric terminal 46 is configured on the terminal component 34 measured after diverter 32 in the present embodiment from the point of view of the direction of electric current 20.Jointly be fed to the 3rd electromotive force 48 of the second difference amplifier 50 by the 3rd electric terminal 46 detection and the first electromotive force 40, described second difference amplifier 50 is subtracted each other by said two electromotive force 40,48 measures the second voltage drop 30.Thus, the second voltage drop 30 is included in the voltage of landing in the part measuring diverter 32 and terminal component 34, and described terminal component 34 is along after being disposed in measurement diverter 32 from the point of view of the direction of electric current 20.
The temperature 26 around current sensor 24 can be determined in the way of below according to the first voltage drop 28 and the second voltage drop 30.To this end, following measured value form should be observed the most for simplicity:
Observing in a column direction, this form is made up of three sub-table.Here, in first three columns, the different value for electric current 20 to be measured draws out first voltage drop 28 development about temperature 26.In arranging at second three, the different value for electric current 20 to be measured draws out second voltage drop 30 development about temperature 26.In last three row, the different value for electric current 20 to be measured draws out the development about temperature 26 of the ratio between the first voltage drop 28 and the second voltage drop 30.
In order to be more fully understood that the first two sub-table, draw out the deviation 52 of the first voltage drop 28 and the second voltage drop 30 and fixing reference point 54 in the diagram about temperature 26.In the diagram, this reference point 54 is chosen when temperature 26 is 25 DEG C.
As according to Fig. 4 clearly, the deviation 52 of voltage drop 28,30 is unrelated with the electric current 20 flowing through current sensor 24 so that may determine temperature 26 for deviation individually.But, must can first measure predetermined reference point 54 for real use, start to can determine that deviation 52 from described reference point 54.But, this ground relevant with application can be impossible or the most very time consuming.In vehicle technology, such as, may occur in which extreme temperature fluctuation.So, to expect in vehicle relative in the winter time for-20 DEG C to-10 DEG C in the temperature that summer is 40 DEG C to 50 DEG C.Here, great problem may be proposed: in order to carry out temperature survey it is first necessary to can be through being the reference point of 25 DEG C.Additionally, other problem also can be to detect when to reach 25 DEG C, because the use of temperature sensor should be out-of-date.
But, substantially may recognize that in the case of observing Fig. 4 more accurately: carry out observation place by temperature 26, the spacing 56 between the deviation 52 and the deviation 52 of the second voltage drop 30 of the first voltage drop 28 has the change procedure relevant with temperature.Thus, if the spacing 56 between the first voltage drop 28 and the deviation 52 of the second voltage drop 30 is known, then temperature 26 to be measured can be determined clearly.Additionally, contrary with voltage drop 28,30, this spacing 56 is unrelated with electric current 20 to be measured.
Measuring of spacing 56 can be determined by each arbitrary contrast of the first voltage drop 28 with the second voltage drop 30.In superincumbent form, the most exemplarily it is illustrated as exemplary measuring according to the business 58 between the first voltage drop 28 and the second voltage drop 30.Substantially can it is seen that: each business 58 is independently of electric current 20 to be measured, and each business 58 is not unrelated with temperature to be measured 26.Thus, constituted by the business between the first voltage drop 28 and the second voltage drop 30 and can determine temperature 26 to be measured clearly.
Business 58 is the most exemplarily illustrated for the value of table above about the change procedure of temperature 26.
Such, shown in Figure 5 characteristic curve 60 such as may by detection as shown above go out form as measured value form be recorded and be then deposited in the preparatory stage (im Vorfeld) in the memorizer being illustrated the most further of the engine control system 22 of Fig. 1.Then, if engine control system 22 obtains said two voltage drop 28,30 in the way of shown in FIG, then can be constituted by the business of said two voltage drop 28,30 and determine temperature 26 according to characteristic curve 60.
Claims (10)
1. the method being used for measuring the temperature (26) in current sensor (24), described current sensor (24) includes the first conductive material (32) and the second conductive material (34) connected of connecting with the first conductive material (32), said two conductive material all has electric current (20) to flow through, and described method includes:
-it is the first voltage drop (28) that starting point detects on the first conductive material (32) with the reference potential (40) on the first or second conductive material (32,34),
-it is the second voltage drop (30) that starting point detects on the second conductive material (34) with described reference potential (40), and
-contrast (58) based on the first voltage drop (28) Yu the second voltage drop (30) determines temperature (26).
Method the most according to claim 1, wherein, described electric current (20) is intended to the electric current (20) measured by current sensor (24).
Method the most according to claim 1 and 2, wherein, described current sensor (20) includes the measurement diverter with the first conductive material (32), the measurement voltage (28) that landing is relevant with the electric current (20) to be measured of current sensor (24) on described measurement diverter.
Method the most according to claim 3, wherein, described reference potential (40) is being measured on diverter.
5. according to the method described in claim 3 or 4, wherein, described current sensor (24) has at least one circuit terminal with the second conductive material (34) for carrying or draw away electric current (20) to be measured being connected with described measurement diverter.
6. according to the method one of the claims Suo Shu, wherein, form the business (58) of said two voltage drop (28,30) to contrast the first voltage drop (28) and the second voltage drop (30).
Method the most according to claim 6, wherein, in characteristic curve (60), clear and definite temperature is associated with described business (58) as temperature (26) to be measured.
Method the most according to claim 7, wherein, described clear and definite temperature is determined according to experiment in advance.
9. controlling equipment (22), it is established as: implement according to the method one of the claims Suo Shu.
10. current sensor (24), it includes control equipment (22) according to claim 9.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE201310221210 DE102013221210A1 (en) | 2013-10-18 | 2013-10-18 | Method for measuring a temperature |
| DE102013221210.0 | 2013-10-18 | ||
| PCT/EP2014/071585 WO2015055483A1 (en) | 2013-10-18 | 2014-10-08 | Method for measuring a temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105899956A true CN105899956A (en) | 2016-08-24 |
Family
ID=51662143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480057312.4A Pending CN105899956A (en) | 2013-10-18 | 2014-10-08 | Method for measuring a temperature |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3058379A1 (en) |
| CN (1) | CN105899956A (en) |
| DE (1) | DE102013221210A1 (en) |
| WO (1) | WO2015055483A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109100043A (en) * | 2018-08-21 | 2018-12-28 | 西北工业大学 | A kind of test specimen thermometry in thermo-electrically-power coupling testing system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019101408B3 (en) * | 2019-01-21 | 2020-06-18 | Infineon Technologies Ag | Current measuring device, current measuring method and calibration method |
| DE102022201996B3 (en) | 2022-02-25 | 2023-07-13 | Bruker Biospin Gmbh | Method for determining an electric current with a shunt arrangement, with compensation for heating generated by the current in the shunt arrangement |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4281544A (en) * | 1978-06-09 | 1981-08-04 | Kabushiki Kaisha Daini Seikosha | Temperature detecting device |
| CN1085658A (en) * | 1991-03-15 | 1994-04-20 | 船井电机株式会社 | Be used to heat temperature measuring circuit with device for cooking |
| CN1266181A (en) * | 1999-03-04 | 2000-09-13 | 日本电气株式会社 | Determination of environment temp. by comparision of component of pressure |
| US6255892B1 (en) * | 1998-09-09 | 2001-07-03 | Siemens Aktiengesellschaft | Temperature sensor |
| CN2493938Y (en) * | 2001-08-09 | 2002-05-29 | 赵锋 | Photomagnetic current mutual inductor |
| US20110089931A1 (en) * | 2009-10-19 | 2011-04-21 | Nemic-Lambda Ltd. | Temperature-compensated shunt current measurement |
| CN102288322A (en) * | 2010-04-19 | 2011-12-21 | 飞兆半导体公司 | differential thermistor circuit |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19757258C2 (en) * | 1997-12-23 | 2001-02-08 | Heraeus Electro Nite Int | Sensor with temperature-dependent measuring resistor and its use for temperature measurement |
| DE102004046275B4 (en) * | 2003-09-23 | 2006-12-21 | Saxotec Gmbh & Co.Kg | Device for monitoring the temperature of high-voltage assemblies |
| DE102005039587A1 (en) | 2005-08-19 | 2007-02-22 | Robert Bosch Gmbh | Battery sensor unit |
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| DE102010028086A1 (en) * | 2010-04-22 | 2011-10-27 | Robert Bosch Gmbh | Method for measuring current and temperature in motor car, involves switching power supply for measuring temperature, and measuring another measuring voltage falling at measuring resistor and temperature-dependent resistor |
-
2013
- 2013-10-18 DE DE201310221210 patent/DE102013221210A1/en not_active Withdrawn
-
2014
- 2014-10-08 EP EP14781252.3A patent/EP3058379A1/en not_active Withdrawn
- 2014-10-08 CN CN201480057312.4A patent/CN105899956A/en active Pending
- 2014-10-08 WO PCT/EP2014/071585 patent/WO2015055483A1/en active Application Filing
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| US4281544A (en) * | 1978-06-09 | 1981-08-04 | Kabushiki Kaisha Daini Seikosha | Temperature detecting device |
| CN1085658A (en) * | 1991-03-15 | 1994-04-20 | 船井电机株式会社 | Be used to heat temperature measuring circuit with device for cooking |
| US6255892B1 (en) * | 1998-09-09 | 2001-07-03 | Siemens Aktiengesellschaft | Temperature sensor |
| CN1266181A (en) * | 1999-03-04 | 2000-09-13 | 日本电气株式会社 | Determination of environment temp. by comparision of component of pressure |
| CN2493938Y (en) * | 2001-08-09 | 2002-05-29 | 赵锋 | Photomagnetic current mutual inductor |
| US20110089931A1 (en) * | 2009-10-19 | 2011-04-21 | Nemic-Lambda Ltd. | Temperature-compensated shunt current measurement |
| CN102288322A (en) * | 2010-04-19 | 2011-12-21 | 飞兆半导体公司 | differential thermistor circuit |
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| 赵本刚 等: "基于微电子机械系统的光学电流传感器原理与设计", 《中国电机工程学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109100043A (en) * | 2018-08-21 | 2018-12-28 | 西北工业大学 | A kind of test specimen thermometry in thermo-electrically-power coupling testing system |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3058379A1 (en) | 2016-08-24 |
| DE102013221210A1 (en) | 2015-04-23 |
| WO2015055483A1 (en) | 2015-04-23 |
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Application publication date: 20160824 |
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