EP2269018A1 - Remote temperature sensing device and related remote temperature sensing method - Google Patents
Remote temperature sensing device and related remote temperature sensing methodInfo
- Publication number
- EP2269018A1 EP2269018A1 EP08743055A EP08743055A EP2269018A1 EP 2269018 A1 EP2269018 A1 EP 2269018A1 EP 08743055 A EP08743055 A EP 08743055A EP 08743055 A EP08743055 A EP 08743055A EP 2269018 A1 EP2269018 A1 EP 2269018A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- strip
- numbers
- formula
- temperature
- atom percent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
- G01K13/04—Thermometers specially adapted for specific purposes for measuring temperature of moving solid bodies
- G01K13/08—Thermometers specially adapted for specific purposes for measuring temperature of moving solid bodies in rotary movement
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/024—Means for indicating or recording specially adapted for thermometers for remote indication
-
- 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
- G01K7/36—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using magnetic elements, e.g. magnets, coils
- G01K7/38—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using magnetic elements, e.g. magnets, coils the variations of temperature influencing the magnetic permeability
Definitions
- the invention relates to a remote temperature sensing device and a method of remote temperature sensing for a rotating item, in which a Curie magnetic transition of an amorphous ferromagnetic material is utilized. More particularly, the present invention provides a device and a method of remote temperature sensing of a rotating component of a moving machine.
- thermocouple which utilizes thermo-electric effects of metals is more suited if an electronic reading of a temperature is needed.
- a thermocouple has to be wired to a voltmeter, which converts an electrical signal to a corresponding temperature.
- a resistance thermometer which utilizes the temperature dependence of resistivity of a metal, also has to be wired to a voltmeter.
- This kind of a sensor must respond to the temperature and send a temperature-dependent signal wirelessly to a detector for further signal processing.
- This type of temperature sensing is increasingly needed for automotive tires to prevent the pneumatic tires from bursting due mainly to the temperature rise of the tires during operation.
- One such sensor may be realized by utilizing the Curie magnetic transition in a ferromagnetic material such as iron, which has a ferromagnetic Curie temperature above which ferromagnetism disappears along with all related phenomena such as high magnetization and permeability. The change of the magnetization and the permeability of a ferromagnetic material at the Curie temperature may be readily detected remotely by conventional magnetometry.
- 4,052,696 discloses a tire temperature sensing circuit that utilizes the Curie magnetic transition in a ferrite element.
- the magnetic change at the Curie transition is detected by an inductive coupling effect.
- this technique requires a very small gap between the ferrite-based temperature sensor and a stationary detector to maintain a reliable detecting signal.
- the distance of this gap is thus very small because ferrites usually have relatively low magnetic permeabilities ranging from 80 to 2000, as is noted, for example, on page 498 of "Physics of Magnetism" by S. Chikazumi (John Wiley & Sons, NY, 1964).
- there is a need for temperature sensors which do not require batteries and are capable of remote detection within a practical detection range. Also needed is a temperature sensing device with as little electrical circuitry as possible.
- the present invention provides a temperature sensor adapted to sense an occurrence of a temperature change in a rotating item, such as an automotive tire, and a method of remote temperature sensing for same.
- the present invention eliminates a need to house a battery with the sensor.
- the sensor includes a plurality of amorphous magnetic metal strips which are magnetically connected. Furthermore, the strips are arranged in such a manner that at least one of the strips has a predetermined ferromagnetic Curie temperature which is intended to be detected and another strip or strips have a high magnetic permeability. Chemical compositions of the amorphous alloy strips suited for a temperature sensor of the present invention are provided.
- the remote temperature sensing device and method of the present invention minimizes the use of electrical circuitry.
- a remote temperature sensing device having a temperature sensor placeable on a rotating item includes the temperature sensor being a plurality of rectangular shaped amorphous magnetic alloy strips connected magnetically, wherein at least one of the strips has a predetermined ferromagnetic Curie temperature and another strip has a magnetic permeability exceeding 2,000.
- the temperature sensor may be interrogated by a magnetic field, and the temperature sensor's response signal may be detected electromagnetically;
- the sensing device includes at least one coil emanating an interrogating magnetic field and at least one coil detecting a magnetic response of said temperature sensor.
- the rotating item may be a vehicle tire.
- Fig. 1 is a graphical representation of magnetic induction B plotted vs. an applied magnetic field H, comparing BH behaviors of two magnetic amorphous metal strips, one with a length of 80 mm, shown by Curve 10 and the other with a length of 40 mm, shown by Curve 11 , in accordance with embodiments of the present invention.
- Fig. 2 is a schematic representation, showing two arrangements, 2A and 2B, for the sensor strips of embodiments of the present invention.
- Fig. 3 is a graphical representation, depicting the temperature dependence of a three- strip sensor 2A of embodiments of the present invention of Fig. 2 in which the sensor strip elements 20 are based on METGLAS®2714A.
- Fig. 4 is a graphical representation, depicting the temperature dependence of a three- strip sensor 2A of embodiments of the present invention of Fig. 2 in which the sensor strip elements 20 are based on METGLASO2705M.
- Fig. 5 is a graphical representation, depicting the temperature dependence of a two-strip sensor 2B of embodiments of the present invention of Fig. 2 in which the sensor strip element 22 is cut from METGLASO2714A ribbon and the temperature sensing strip element 23 is cut from AM2, shown by Curve 50, and from AM3, shown by Curve 51.
- Fig. 6 is a graphical representation, depicting the pressure dependence of a three-strip sensor 2A of embodiments of the present invention of Fig.2 in which the sensor strip elements 20 are based on METGLAS ⁇ 2714A and the temperature sensing strip element 23 is cut from AM1 , shown by Curve 60, and from AM2, shown by Curve 61.
- Fig. 7 is a graphical representation, depicting the temperature dependence of the three- strip sensor 2A of embodiments of the present invention of Fig.2 in which the sensor strip elements 20 are based on METGLAS®2714A and the harmonic signal at 30 psi shown by Curve 70, at 40 psi shown by Curve 71 and at 50 psi shown by Curve 72.
- Fig. 8 is a schematic representation, illustrating a remote detecting device of an embodiment of the present invention having a rotating wheel 80, a temperature sensing strip sensor 81 and exciting and detecting coils 82.
- Fig. 9 is a signal diagram, depicting the detecting signal measured in the remote sensing device shown in Fig. 8.
- a three-strip sensor 2A of embodiments of the present invention of Fig.2 is used, in which the sensor strip elements 20 are based on
- METGLAS®2714A and the temperature sensing strip element 23 is cut from AM1.
- Fig. 10 is a schematic representation, illustrating a remote temperature sensing device according to an embodiment of the present invention for an automotive tire 80, comprising a temperature sensor 81 and a pair of excitation and detector coils 82.
- Tire 80 is attached to a tire rim B.
- Fig. 11 is a schematic representation, illustrating a conventional temperature sensing monitor.
- Fig. 12 is a flow diagram, illustrating operations of an embodiment of a method of remote temperature sensing for a rotating item in accordance with the present invention.
- Amorphous magnetic alloy strips according to embodiments of the present invention were prepared by a process outlined in Example 1 (see below).
- the first operation for the illustrated embodiments of the present invention was to examine basic magnetics of the amorphous alloy strips by a method described in Example 2 (see below). Referring to Fig. 1 , in which magnetic induction B in tesla (T) is plotted as a function of an applied magnetic field H in A/m for amorphous magnetic strips, one with a length of 80 mm, shown by Curve 10, and the other with a length of 40 mm, shown by Curve 11.
- BH 1 have a thickness of about 20 ⁇ m and widths of about 2 mm and are cut from a commercially available METGLASO2714A ribbon with a saturation magnetic induction of about 0.6 T and a near-zero magnetostriction.
- This ribbon shows a square or rectangular BH loop when the strip's length is much longer than 75 mm. Due to the demagnetizing effect, which depends on the strip's length-to-width ratio, the BH behaviors shown in Fig. 1 for the two strips having different lengths are different, the shorter strip showing a more sheared BH loop or behavior than the longer one.
- This difference in the BH behaviors of the amorphous metal strips according to embodiments of the present invention results in a corresponding difference in a higher harmonics generation.
- the harmonic responses of the amorphous magnetic alloy strips according to embodiments of the present invention are characterized by a method described in Example 3 (see below).
- a magnetic thin strip with a square or rectangular BH behavior generates higher harmonics of the fundamental frequency at which the strip is magnetically excited.
- the amplitude and the higher harmonics spectrum of the emanating magnetic field from the magnetic strip depend on the degree of the non-linearity of the BH behavior.
- the degree of the non-linearity of a given magnetic strip depends on the length-to-width ratio of the strip. Examples of this relationship are given in Table I for different amorphous magnetic alloys with different ferromagnetic Curie temperatures ⁇ f .
- Alloys, AM1 through AM4, in Table I are based on amorphous magnetic Fe-M-B-Si-C in which Fe content ranges from 61 to 81 atom percent of which up to 50% of Fe may be replaced by Ni, M is selected from Cr, Mo, Nb, Ti and W, and ranges from 0 to 15 atom percent, B content ranges from 2 to 25 atom percent, and Si content ranges from 0 to 10 atom percent and C content from 0 to 18 atom percent. More examples of the amorphous alloys with a similar function are given in Table III.
- the harmonic signals are not linearly proportional to the strip length, i. This is mainly due to the demagnetizing effect mentioned above, and the magnetic volume difference is secondary in the order of contributing factors to the harmonic signal generation.
- two 40 mm-long amorphous metal magnetic strips of METGLAS ®2714A which generated about 22 mV of the 25 th harmonic signal each as given in Table I were placed in parallel to keep the magnetic volume close to or slightly larger than that of a 75 mm long strip, and harmonic signals were measured.
- the 25 th harmonic signal from the two 40 mm long strips was 31 mV, which was about the same level as the 28 mV obtained for a single 40 mm long strip, and was much smaller than the 520 mV from a single 75 mm-long strip, showing that two shorter strips placed in parallel with the same magnetic volume as one longer strip do not generate the same level of harmonic signals. This remarkable difference was utilized in embodiments of the present invention as demonstrated below.
- the two amo ⁇ hous metal magnetic strips 20 of Fig. 2 with lengths of 40 mm of embodiments of the present invention prepared from METGLASO2705M or METGLASO2714A ribbon of Table I were connected with another amorphous metal magnetic strip 21 having a lower Curie temperature, such as AM1 through AM4 listed in Table I, than that of the 40 mm- long strips, as shown in Fig. 2.
- amorphous metal magnetic strip 21 having a lower Curie temperature, such as AM1 through AM4 listed in Table I than that of the 40 mm- long strips, as shown in Fig. 2.
- Higher harmonic signals generated from this temperature sensor configuration and embodiment of the present invention were measured by using the method of Example 3.
- Table Il summarizes the 25 th harmonic signals generated from each of the three-strip temperature sensors.
- the vertical scales of Figs. 3 and 4 are in percentage changes so that direct comparison among different temperature sensors of embodiments of the present invention may be made. As depicted in Figs.
- temperature sensors of embodiments of the present invention show large changes in the harmonic signal generation at the Curie temperatures of the temperature sensitive amorphous metal strips chosen.
- the temperature of an environment in which a temperature sensor of embodiments of the present invention is placeable is determined as the same as or close to the Curie temperature of the temperature sensitive strip element, 21 , in the sensor configuration 2A of Fig. 2.
- Another similar example is also shown in Fig. 2, in which an amorphous magnetic metal strip 22 selected from either one of METGLAS®2714Aor METGLASO2705M ribbon listed in Table I was connected to another amorphous magnetic metal strip 23 cut from any one of AM1-AM4 alloy ribbon listed in Table I having a lower Curie temperature than that of the strip 22.
- the harmonic signal generating strip 22 was cut from METGLAS®2714A ribbon and the temperature sensing strip 23 was cut from AM1 alloy ribbon of Table I, which is shown by Curve 50
- the harmonic signal generating strip 22 was cut from METGLASO2714A ribbon and the temperature sensing strip 23 was cut from AM3 alloy ribbon of Table I, which is shown by Curve 51.
- the temperature of an environment in which a temperature sensor of embodiments of the present invention is placeable is determined as the same as, or close to, the Curie temperature of the particular temperature sensitive strip chosen for strip element 23 in the sensor configuration 2B of Fig. 2.
- the Curie temperatures, ranging from 9O 0 C to 22O 0 C, of the temperature-sensitive amorphous magnetic metal strips adopted in the temperatures sensors depicted in Figs. 1 - 5 and Table I and Il were chosen for the purpose of providing examples and without loss of generality. Since the Curie temperature of an amorphous magnetic alloy may be continuously changed by changing the alloy chemistry, any choice for the Curie temperature and hence, the predetermined temperature to be detected, may be utilized in a temperature sensor of embodiments of the present invention. The only requirement is that the Curie temperature of a temperature-sensitive strip element be lower than that of the main harmonic signal generating strip element.
- amorphous magnetic alloys for a temperature-sensitive strip element of embodiments of the present invention are listed with their Curie temperatures in Table III.
- the alloys AM1 , AM2, AM3 and AM4 in Table I correspond to Alloy 21 , 20, 12 and 13, respectively in Table Table III
- amorphous near-zero magnetostrictive alloy ribbon such as METGLASO2705M and METGLAS®2714A material
- Table I any amorphous magnetic alloy ribbon with a square or rectangular BH hysteresis behavior with a low coercivity as exemplified in Fig. 1 is usable as the harmonic signal generating element of a temperature sensor of the present invention.
- the amorphous alloys meeting these requirements have magnetic permeabilities well above 2000, a level of permeability which is needed for effective higher harmonic generation. Examples of such amorphous alloys are listed in Table IV.
- Fe 80 B 1O Si 10 alloy showed a lowest permeability measured by a conventional method, but it is about 7000 for 0.01 T excitation at a frequency of 1 kHz.
- Another requirement for a harmonic signal generating strip element of embodiments of the present invention is that the Curie temperature of the harmonic signal generating strip element be higher than that of a temperature-sensitive strip element chosen.
- the Curie temperature of the amorphous alloys listed in Table IV varies from 155 to 422 0 C, allowing an alloy with a lower ⁇ f to be utilized as a temperature-sensitive strip element and allowing an alloy with a higher ⁇ f to be utilized as a harmonic generating strip element of embodiments of the present invention.
- the pressure dependence of the harmonic signal at room temperature from a three- strips temperature sensor in the sensor configuration 2A of Fig. 2 was measured by a method described in Example 4, and the results are shown in Fig. 6.
- the harmonic signal generating strip 20 was cut from METGLASO2714A ribbon, and the temperature sensing strip 21 was cut from AM1 alloy ribbon of Table I, which is shown by Curve 60, and in the second case, the harmonic signal generating strip 20 was cut from
- METGLAS®2714A ribbon and the temperature sensing strip 21 was cut from AM2 alloy ribbon of Table I, which is shown by Curve 61.
- the results indicate that the harmonic signals were independent of the pressure of an environment in which a tire temperature sensor of embodiments of the present invention was placeable.
- the temperature dependence of the harmonic signal at the predetermined pressure which corresponds to the pressure of a pneumatic tire was measured by a method described in Example 5, and the results are shown in Fig. 7.
- the harmonic signal was from three-strip temperature sensor in the sensor configuration 2A of Fig. 2, in which the harmonic signal generating strip 20 was cut from METGLASO2714A ribbon and the temperature sensing strip 21 was cut from AM1 alloy ribbon of Table I.
- a temperature sensor 81 in the sensor configuration 2A of Fig. 2 is placeable on a wheel 80.
- a magnetic field is provided by the excitation coil 82 and the generated harmonic signals from the temperature sensor 81 are monitored by a detector coil. The details are described in Example 6. While rotating the wheel, the signal was detected by detector coil 82 shown in Fig. 8.
- Fig. 9 depicts the detected signal when the wheel rotation speed was 60 rpm. This result indicates the harmonic signals are effectively detected when the temperature sensor passes by the exciting and detector coils.
- the harmonic signal detected in the coil 82 varies with the environment temperature following the curves shown in Figs. 5 and 7.
- a temperature sensor 81 of embodiments of the present invention is attached inside an automotive tire 80 as shown.
- a pair of excitation and detector coils 82 are placeable outside tire 80, facing the temperature sensor 81.
- item B is a tire rim which holds tire 80.
- a temperature sensing element 26 with a copper winding is attached to a tire rim 20 and is connected by wires indicated by 26a, 26b and 24 to a set of inductors 18 which inductively couple with signal monitoring circuits situated near inductive element 18.
- the temperature sensing element 26 has a ferrite core having a Curie magnetic transition temperature. When the temperature of the ferrite core reaches its Curie temperature, the inductance of the temperature sensing circuit changes, which is transmitted to the signal monitoring circuits.
- amorphous alloys used in embodiments of the present invention have permeabilities well above 2,000, and their Curie temperatures are varied continuously by changing the alloys' chemistries.
- a predetermined temperature of the temperature sensing element of embodiments of the present invention may be selected at any desirable temperature, and the change of the magnetic properties at the predetermined temperature is considerably higher than that from a ferrite material. The latter property advantage is reflected in the signal detected and shown in Fig. 9 in detector coil 82 of Fig. 8.
- Amorphous magnetic alloys used in embodiments of the present invention were prepared by the metal casting method described in U.S. Patent No. 4,142,571.
- the cast material was in ribbon form with a thickness around 20 ⁇ m and width ranging from about 25 mm to 213 mm.
- a cast ribbon then was slit to a narrower ribbon with a width ranging from about 0.5 mm to 10 mm. If necessary, a slit ribbon was heat-treated to change its magnetic properties. A ribbon thus prepared was cut into pieces with variable lengths.
- Example 3 A temperature sensor strip element in accordance with Example 1 was placeable in an exciting AC field at a predetermined fundamental frequency, and its higher harmonics response was detected by a coil containing the strip element.
- the exciting coil and signal detecting coil were wound on a bobbin with a diameter of about 50 mm. The number of windings in the exciting coil and the signal detecting coil was about 180 and about 250, respectively.
- a non-magnetic tube was inserted in which a sample heating element was placed by which the strip sample temperature was varied. The temperature of the strip element was determined by attaching a thermocouple directly on one end of the strip element.
- the fundamental exciting AC field was chosen at 2.4 kHz, and its voltage at the exciting coil was about 80 mV.
- the 25 th harmonic voltages from the signal detecting coil were measured by a commercially available digital voltmeter.
- a temperature sensor strip element with Example 1 was placeable in an exciting AC field at a predetermined fundamental frequency, and its higher harmonics response was detected by a coil containing the strip element.
- the exciting coil and signal detecting coil were wound on a non-magnetic tube with a diameter of about 50 mm. The number of windings in the exciting coil and the signal detecting coil was about 180 and about 250, respectively. Inside pressure of the tube was varied and determined by pressure gage.
- the fundamental exciting AC field was chosen at 2.4 kHz, and its voltage at the exciting coil was about 80 mV.
- the 25 th harmonic voltages from the signal detecting coil were measured by a commercially available digital voltmeter.
- an exciting AC field at a predetermined fundamental frequency and its higher harmonics response was detected by a coil containing the strip element.
- the exciting coil and signal detecting coil were wound on a bobbin with a diameter of about 50 mm.
- the number of windings in the exciting coil and the signal detecting coil was about 180 and about 250, respectively.
- Inside the 50 mm-diameter bobbin a non-magnetic tube was inserted in which a sample heating element was placed by which the strip sample temperature was varied.
- the inside pressure of the tube was varied and determined by a pressure gauge.
- the fundamental exciting AC field was chosen at 2.4 kHz, and its voltage at the exciting coil was about 80 mV.
- the 25 th harmonic voltages from the signal detecting coil were measured by a commercially available digital voltmeter.
- Example 6 A temperature sensor strip element in accordance with Example 1 was placeable on a wheel, and 8-figure exciting and detector coils were located at a 20 mm distance from the temperature sensor strip.
- the number of windings on the exciting and signal detecting coil was 40 and 320, respectively.
- the exciting coil was 15cm x 15cm, and the detecting coil was 10 cm in diameter.
- the fundamental exciting field was chosen at 2.4 kHz, and its voltage was about 500 mV.
- the 13 th harmonics voltages from the signal detecting coil were measured by a commercially available oscilloscope.
- the wheel was rotated by a conventional variable speed motor.
- Fig. 12 illustrates operations of a method 1200 in accordance with an embodiment of the present invention.
- a method 1200 of utilizing a remote temperature sensing device having a temperature sensor placeable on a rotating item the method comprising connecting a plurality of rectangular shaped amorphous magnetic alloy strips magnetically 1202, wherein at least one of the strips has a predetermined ferromagnetic Curie temperature and another strip has a magnetic permeability exceeding 2,000 to form the temperature sensor; and affixing the temperature sensor to rotating item 1204.
- Interrogating the temperature sensor may include using at least one coil to emanate an interrogating magnetic field, and using at least another one coil of the remote sensing device to detect a magnetic response of said temperature sensor.
- the affixing the temperature sensor to the rotating item comprises affixing the temperature sensor to a vehicle tire.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
- Soft Magnetic Materials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US2008/005019 WO2009145746A1 (en) | 2008-04-18 | 2008-04-18 | Remote temperature sensing device and related remote temperature sensing method |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2269018A1 true EP2269018A1 (en) | 2011-01-05 |
EP2269018A4 EP2269018A4 (en) | 2013-09-25 |
Family
ID=41377361
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08743055.9A Withdrawn EP2269018A4 (en) | 2008-04-18 | 2008-04-18 | Remote temperature sensing device and related remote temperature sensing method |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP2269018A4 (en) |
JP (1) | JP5351956B2 (en) |
KR (1) | KR101419263B1 (en) |
CN (1) | CN102066889B (en) |
HK (1) | HK1157861A1 (en) |
WO (1) | WO2009145746A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2269017A1 (en) * | 2008-04-18 | 2011-01-05 | Metglas, Inc. | Temperature sensor and related remote temperature sensing method |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5895578B2 (en) * | 2012-02-15 | 2016-03-30 | Tdk株式会社 | Non-contact temperature sensor |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US6208253B1 (en) * | 2000-04-12 | 2001-03-27 | Massachusetts Institute Of Technology | Wireless monitoring of temperature |
US20070263699A1 (en) * | 2006-05-09 | 2007-11-15 | Thermal Solutions, Inc. | Magnetic element temperature sensors |
EP2269017A1 (en) * | 2008-04-18 | 2011-01-05 | Metglas, Inc. | Temperature sensor and related remote temperature sensing method |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS57169050A (en) * | 1981-02-10 | 1982-10-18 | Toshiba Corp | Temperature sensitive amorphous magnetic alloy |
JPS609643B2 (en) * | 1983-11-28 | 1985-03-12 | 株式会社東芝 | temperature sensor |
JP2809870B2 (en) * | 1990-11-27 | 1998-10-15 | ユニチカ株式会社 | Magnetic marker |
JPH08186019A (en) * | 1994-11-02 | 1996-07-16 | Unitika Ltd | Magnetic marker |
DE19533362A1 (en) * | 1995-09-09 | 1997-03-13 | Vacuumschmelze Gmbh | Elongated body as a security label for electromagnetic anti-theft systems |
JPH10111184A (en) * | 1996-10-08 | 1998-04-28 | Tokin Corp | Magnetic oxide material for temperature-sensing element and temperature-sensing element using it |
DE19815583A1 (en) * | 1998-04-08 | 1999-10-14 | Meto International Gmbh | Element for electronic article surveillance or for sensor technology |
JP2001201405A (en) * | 2000-01-21 | 2001-07-27 | Alps Electric Co Ltd | Temperature sensor and thremal lead switch |
JP3954394B2 (en) * | 2002-01-21 | 2007-08-08 | 株式会社ブリヂストン | Tire temperature measurement method |
WO2003100370A1 (en) * | 2002-05-24 | 2003-12-04 | Bridgestone Corporation | Tire temperature sensor, tire heat deterioration detection sensor, and tire |
JP2004279044A (en) * | 2003-03-12 | 2004-10-07 | Bridgestone Corp | Tire temperature measuring method and tire used for the same |
JP4437904B2 (en) * | 2003-08-08 | 2010-03-24 | 株式会社 シーディエヌ | Temperature-sensitive magnetic tag, temperature-sensitive magnetic tag reader, temperature history detection system |
CA2652102C (en) * | 2006-05-09 | 2013-04-30 | Thermal Solutions, Inc. | Magnetic element temperature sensors |
-
2008
- 2008-04-18 CN CN200880129842.XA patent/CN102066889B/en not_active Expired - Fee Related
- 2008-04-18 WO PCT/US2008/005019 patent/WO2009145746A1/en active Application Filing
- 2008-04-18 JP JP2011504973A patent/JP5351956B2/en not_active Expired - Fee Related
- 2008-04-18 EP EP08743055.9A patent/EP2269018A4/en not_active Withdrawn
- 2008-04-18 KR KR1020107025906A patent/KR101419263B1/en not_active IP Right Cessation
-
2011
- 2011-11-03 HK HK11111904.9A patent/HK1157861A1/en not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6208253B1 (en) * | 2000-04-12 | 2001-03-27 | Massachusetts Institute Of Technology | Wireless monitoring of temperature |
US20070263699A1 (en) * | 2006-05-09 | 2007-11-15 | Thermal Solutions, Inc. | Magnetic element temperature sensors |
EP2269017A1 (en) * | 2008-04-18 | 2011-01-05 | Metglas, Inc. | Temperature sensor and related remote temperature sensing method |
Non-Patent Citations (3)
Title |
---|
AZUMA D ET AL: "Remote Temperature Sensor Based on Amorphous Metal Strips", IEEE TRANSACTIONS ON MAGNETICS, IEEE SERVICE CENTER, NEW YORK, NY, US, vol. 45, no. 10, October 2009 (2009-10), pages 4503-4505, XP011277224, ISSN: 0018-9464, DOI: 10.1109/TMAG.2009.2023611 * |
RICHARD R FLETCHER ET AL: "Remotely Interrogated Temperature Sensors Based on Magnetic Materials", IEEE TRANSACTIONS ON MAGNETICS, IEEE SERVICE CENTER, NEW YORK, NY, US, vol. 36, no. 5, September 2000 (2000-09), XP011032927, ISSN: 0018-9464 * |
See also references of WO2009145746A1 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2269017A1 (en) * | 2008-04-18 | 2011-01-05 | Metglas, Inc. | Temperature sensor and related remote temperature sensing method |
EP2269017A4 (en) * | 2008-04-18 | 2013-09-25 | Metglas Inc | Temperature sensor and related remote temperature sensing method |
Also Published As
Publication number | Publication date |
---|---|
WO2009145746A1 (en) | 2009-12-03 |
HK1157861A1 (en) | 2012-07-06 |
CN102066889B (en) | 2014-07-02 |
KR101419263B1 (en) | 2014-07-16 |
JP5351956B2 (en) | 2013-11-27 |
EP2269018A4 (en) | 2013-09-25 |
JP2011518331A (en) | 2011-06-23 |
KR20100133019A (en) | 2010-12-20 |
CN102066889A (en) | 2011-05-18 |
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