JPH01172714A - Temperature measuring apparatus of charged body - Google Patents
Temperature measuring apparatus of charged bodyInfo
- Publication number
- JPH01172714A JPH01172714A JP62332570A JP33257087A JPH01172714A JP H01172714 A JPH01172714 A JP H01172714A JP 62332570 A JP62332570 A JP 62332570A JP 33257087 A JP33257087 A JP 33257087A JP H01172714 A JPH01172714 A JP H01172714A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- temperature sensor
- signal
- insulator
- electromagnetic coupling
- 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.)
- Pending
Links
- 230000008878 coupling Effects 0.000 claims abstract description 11
- 238000010168 coupling process Methods 0.000 claims abstract description 11
- 238000005859 coupling reaction Methods 0.000 claims abstract description 11
- 239000012212 insulator Substances 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 5
- 238000009529 body temperature measurement Methods 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 abstract description 4
- 238000012545 processing Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002470 thermal conductor Substances 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
- G01K7/32—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using change of resonant frequency of a crystal
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
Landscapes
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、活線状態にある電線等の充電物体の温度測
定装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a temperature measuring device for a charged object such as a live electric wire.
充電物体の温度を測定する方法として、従来、物体の発
する赤外線を測定する方法、物体に温度表示テープを貼
り付は目視により監視する方法、物体に測温センサと共
に送信器を取り付け、測定データを電波により送信し、
これを遠隔地で受信する方法などが知られている。Conventional methods for measuring the temperature of a charging object include measuring the infrared rays emitted by the object, attaching a temperature display tape to the object and visually monitoring it, and attaching a transmitter along with a temperature sensor to the object and transmitting the measured data. Transmitted by radio waves,
A method for receiving this at a remote location is known.
赤外線を利用する方法は、物体により輻射率が相違する
ため、正確な温度測定が困難である欠点がある。また、
温度表示テープを用いる方法は、最高温度しか判別でき
ないため、時々刻々の温度変化をＩＩ＋定できない欠点
がある。また、電波により測定データを送信する方法は
、送信器に電源が必要であるため、その電源としてバッ
テリーを選促した場合、長期間にわたる連続測定が不可
能であり、また日射量が多い場合に送信器の内部温度が
上昇するため、測定誤差が生じ易い欠点があった。The method using infrared rays has the disadvantage that accurate temperature measurement is difficult because the emissivity varies depending on the object. Also,
The method using a temperature display tape has the disadvantage that it cannot determine momentary temperature changes because it can only determine the maximum temperature. In addition, the method of transmitting measurement data via radio waves requires a power source for the transmitter, so if a battery is selected as the power source, continuous measurement over a long period of time is impossible, and it is difficult to use when there is a lot of solar radiation. Since the internal temperature of the transmitter increases, measurement errors tend to occur.
この発明は、以上のごとき問題点を解決した温度測定装
置を提供することを目的とする。An object of the present invention is to provide a temperature measuring device that solves the above problems.
上述の問題点を解決するために、この発明は第１図及び
第２図に示すように、圧電素子からなる用いた温度セン
サ１と、検知信号への送信部２及び共振残響信号Ｂの受
信部３を有すると共に、上記温度センサ１と送信部２、
受信部３の間に相互インダクタンスを存する一対のコイ
ル４ａ、４ｂを有する電磁結合部４を設けた温度測定器
５を具備し、上記温度センサ１を充電物体６に取付け、
かつ上記電磁結合部４に充電物体６の電圧を超える絶縁
耐力を有する絶縁体７を介在した構成としたものである
。In order to solve the above-mentioned problems, the present invention, as shown in FIGS. 1 and 2, uses a temperature sensor 1 made of a piezoelectric element, a transmitter 2 for a detection signal, and a receiver for a resonance reverberation signal B. 3, the temperature sensor 1 and the transmitter 2,
A temperature measuring device 5 is provided with an electromagnetic coupling section 4 having a pair of coils 4a and 4b having mutual inductance between the receiving section 3, and the temperature sensor 1 is attached to a charging object 6,
In addition, an insulator 7 having a dielectric strength exceeding the voltage of the charging object 6 is interposed in the electromagnetic coupling portion 4 .
なお、第１図の８は充電物体６に対するコイル取付具、
９は固定部１０に対するコイル取付具、１１はモード切
替部、１２は送受信部２．３及びモード切替部１１等を
含む処理部である。Note that 8 in FIG. 1 is a coil attachment for the charging object 6;
Reference numeral 9 denotes a coil attachment fixture for the fixed part 10, 11 a mode switching section, and 12 a processing section including the transmitting/receiving section 2.3, the mode switching section 11, and the like.
送信モードにおいて送信部２から、周波数をｆＩ〜ｆ７
に段階的に変化させた断続的な検知信号Ａを、電磁結合
部４を通じて温度センサ１に送信する。一定の周波数に
おいて温度センサ１が共振する。検知信号が断状態にな
ると、モード切替部１１の作動により受信モードに切替
えられる。同時に温度センサ１の共振も停止するが、次
第に減衰する残響信号Ｂが残存するため、その信号Ｂが
電磁結合部４を通じて受信部３に受信される。In the transmission mode, the transmitter 2 transmits the frequencies from fI to f7.
An intermittent detection signal A that is changed in stages is transmitted to the temperature sensor 1 through the electromagnetic coupling section 4. The temperature sensor 1 resonates at a certain frequency. When the detection signal is turned off, the mode switching unit 11 operates to switch to the reception mode. At the same time, the resonance of the temperature sensor 1 also stops, but since the reverberation signal B that gradually attenuates remains, the signal B is received by the receiving section 3 through the electromagnetic coupling section 4.
温度センサ１の共振周波数は、温度により変化するため
、受信した残響信号Ｂの周波数により充電物体の温度を
知ることができる。Since the resonant frequency of the temperature sensor 1 changes depending on the temperature, the temperature of the charged object can be determined from the frequency of the received reverberation signal B.
第４図及び第５図に示す実施例は、充電物体６が電力線
であり、鉄塔１５に取付けて使用される。In the embodiment shown in FIGS. 4 and 5, the charging object 6 is a power line, and is used by being attached to a steel tower 15.
温度センサ１は、充電物体６のまわりにボルト１６によ
り取付けられる一対の取付具１７．１８のうち、一方の
取付具１８の中に埋め込まれる。The temperature sensor 1 is embedded in one of a pair of fittings 17 , 18 attached by bolts 16 around the charging object 6 .
これらの取付具１７．１８はＦＲＰ製であり、温度セン
サ１を埋め込んだ取付具１８には、コネクタ１９が突設
される。温度センサ１の先端の感熱部は充電物体６に接
触される。These fixtures 17 and 18 are made of FRP, and a connector 19 is provided protruding from the fixture 18 in which the temperature sensor 1 is embedded. A heat-sensitive portion at the tip of the temperature sensor 1 is brought into contact with a charging object 6.
温度センサ１は充電物体６に対し直接接触させてもよい
が、熱の良導体を介して間接的に接触させてもよい。The temperature sensor 1 may be brought into direct contact with the charged object 6, or may be brought into contact indirectly through a good thermal conductor.
鉄塔１５には支持金具２０が取付けられ、その支持金具
２０に碍子２１が水平方向に突設される。A support fitting 20 is attached to the steel tower 15, and an insulator 21 is provided to protrude from the support fitting 20 in the horizontal direction.
碍子２１の先端面には、ＦＲＰ製の取付台２２が固定さ
れ、その取付台２２の片面にセンサコイル４ａを取付け
ている。センサコイル４ａと温度センサ１とは、同軸ケ
ーブル２３により接続される。A mounting base 22 made of FRP is fixed to the tip end surface of the insulator 21, and a sensor coil 4a is attached to one side of the mounting base 22. The sensor coil 4a and the temperature sensor 1 are connected by a coaxial cable 23.
′ また、碍子２１の後端面には、ＦＲＰ製の取付台２
４が固定され、その片面に制御コイル４ｂが取付けられ
る。センサコイル４ａと制御コイル４ｂの直径及び両者
間の距離は、碍子２１による絶縁を損わない距離で所定
のネｕ互インダクタンスをもった電磁結合部４を構成す
るよう設定される。' Also, on the rear end surface of the insulator 21, there is a mounting base 2 made of FRP.
4 is fixed, and a control coil 4b is attached to one side thereof. The diameters of the sensor coil 4a and the control coil 4b and the distance between them are set so as to configure the electromagnetic coupling section 4 having a predetermined mutual inductance at a distance that does not impair the insulation provided by the insulator 21.
制御コイル４ｂは同軸ケーブル２５により鉄塔１５上の
データ処理変換器２６に接続される。データ処理変換器
２６は、第２図において示した送信部２、受信部３、モ
ード切替部１１のほかに、受信した残響信号Ｂをデータ
処理する。データ処理された信号は、更に、電気・光変
換器２７において光信号に変換され、伝送末端２８及び
ジヨイントボックス２９を経て、０ＰＧＷ（光ファイバ
複合架空地線）３０に送り出される。The control coil 4b is connected by a coaxial cable 25 to a data processing converter 26 on the tower 15. The data processing converter 26 performs data processing on the received reverberant signal B in addition to the transmitting section 2, receiving section 3, and mode switching section 11 shown in FIG. The data-processed signal is further converted into an optical signal by an electric/optical converter 27, and sent to an 0PGW (optical fiber composite overhead ground wire) 30 via a transmission terminal 28 and a joint box 29.
なお、装置の電源は、鉄塔１５に取付けた太陽電池３１
に依存するものであり、その太陽電池３１により充電さ
れるバッテリー３２を備えている。Note that the power source for the device is a solar battery 31 attached to the steel tower 15.
It is equipped with a battery 32 that is charged by the solar cell 31.
実施例の装置は以上のごとき構成であり、データ処理変
換器２６から検知信号Ａを送信し、これを制御コイル４
ｂを通じてセンサコイル４ａに誘専させる。以下、第１
図から第３図に基づいて説明した要？ｉ頁で、残響信号
Ｂが受信されると、これをデータ処理変換器２６でデー
タ処理したうえで０ＰＧＷ３［１に送出する。The device of the embodiment has the above configuration, and the data processing converter 26 transmits the detection signal A, which is sent to the control coil 4.
The sensor coil 4a is induced through the sensor coil 4b. Below, the first
What is the main point explained based on Figure 3? When the reverberation signal B is received on page i, it is processed by the data processing converter 26 and then sent to 0PGW3[1.
以上のように、この発明は、圧電素子より成る温度セン
サを用い、その共振残響信号を捉えることにより温度測
定ができるものであるから、充電物体側に送信器やその
ための電源が不要である。As described above, the present invention uses a temperature sensor made of a piezoelectric element and can measure temperature by capturing its resonant reverberation signal, so there is no need for a transmitter or a power source for it on the side of the charged object.
そのため、長期にわたり安定した温度測定が可能である
。Therefore, stable temperature measurement over a long period of time is possible.
また、センサコイルと制御コイルの電磁結合部は、空気
や碍子等の充電体の電圧を超える絶縁耐力をもった絶縁
体により電気的に絶縁されるので、高圧充電物体の温度
を安全に測定することができる。In addition, the electromagnetic coupling part between the sensor coil and control coil is electrically insulated by an insulator with a dielectric strength that exceeds the voltage of the charged object such as air or insulator, so the temperature of the high-voltage charged object can be safely measured. be able to.
第１図はこの発明の基本構成図、第２図は同上の回路図
、第３図は同上の信号波形図、第４圓は実施例の一部を
示す正面図、第５図は実施例の全体図である。
１・・・・・・温度センサ、 ２・・・・・・送信部
、３・・・・・・受信部、 ４・・・・・・電磁
結合部、５・・・・・・温度測定器、 ６・・・・・
・充電物体、７・・・・・・絶縁体。
特許出願人 住友電気工業株式会社
同 明星電気株式会社Fig. 1 is a basic configuration diagram of the present invention, Fig. 2 is a circuit diagram of the same as above, Fig. 3 is a signal waveform diagram of the same as above, the fourth circle is a front view showing a part of the embodiment, and Fig. 5 is an embodiment. This is an overall diagram. 1... Temperature sensor, 2... Transmitting section, 3... Receiving section, 4... Electromagnetic coupling section, 5... Temperature measurement Vessel, 6...
・Charged object, 7... Insulator. Patent applicant: Sumitomo Electric Industries, Ltd. Meisei Electric Co., Ltd.
Claims (3)
部及び共振残響信号の受信部を有するとともに、上記温
度センサと送信部、受信部の間に電磁結合部を設けてな
る温度測定器を具備し、上記温度センサを充電物体に取
付け、かつ上記の電磁結合部に充電物体の電圧を超える
絶縁耐力をもった絶縁体を介在した充電物体の温度測定
装置。(1) A temperature measuring device comprising a temperature sensor made of a piezoelectric element, a detection signal transmitting section and a resonance reverberation signal receiving section, and an electromagnetic coupling section between the temperature sensor, the transmitting section, and the receiving section. A temperature measuring device for a charged object, comprising: the temperature sensor attached to the charged object; and an insulator having a dielectric strength exceeding a voltage of the charged object interposed in the electromagnetic coupling part.
に記載の充電物体の温度測定装置。(2) The temperature measuring device for a charged object according to claim 1, wherein the insulator is air.
相互に電磁結合したコイルを装着してなる特許請求の範
囲第１項に記載の充電物体の温度測定装置。(3) The temperature measuring device for a charged object according to claim 1, wherein the insulator is an insulator, and coils that are electromagnetically coupled to each other are attached to both end faces of the insulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62332570A JPH01172714A (en) | 1987-12-28 | 1987-12-28 | Temperature measuring apparatus of charged body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62332570A JPH01172714A (en) | 1987-12-28 | 1987-12-28 | Temperature measuring apparatus of charged body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01172714A true JPH01172714A (en) | 1989-07-07 |
Family
ID=18256397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62332570A Pending JPH01172714A (en) | 1987-12-28 | 1987-12-28 | Temperature measuring apparatus of charged body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01172714A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105190268A (en) * | 2013-05-03 | 2015-12-23 | 3M创新有限公司 | System for monitoring temperature of electrical conductor |
| JP2016539316A (en) * | 2013-09-25 | 2016-12-15 | スリーエム イノベイティブ プロパティズ カンパニー | Compositions, devices and methods for capacitive temperature sensing |
| EP3394582A4 (en) * | 2015-12-21 | 2019-08-14 | 3M Innovative Properties Company | Real-time temperature measurement for electrical conductors |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61105306A (en) * | 1984-10-30 | 1986-05-23 | Ishikawajima Harima Heavy Ind Co Ltd | Bearing temperature monitoring device |
-
1987
- 1987-12-28 JP JP62332570A patent/JPH01172714A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61105306A (en) * | 1984-10-30 | 1986-05-23 | Ishikawajima Harima Heavy Ind Co Ltd | Bearing temperature monitoring device |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105190268A (en) * | 2013-05-03 | 2015-12-23 | 3M创新有限公司 | System for monitoring temperature of electrical conductor |
| JP2016524130A (en) * | 2013-05-03 | 2016-08-12 | スリーエム イノベイティブ プロパティズ カンパニー | Electrical conductor temperature monitoring system |
| US9885618B2 (en) | 2013-05-03 | 2018-02-06 | 3M Innovative Properties Company | System for monitoring temperature of electrical conductor |
| CN105190268B (en) * | 2013-05-03 | 2019-02-15 | 3M创新有限公司 | System for monitoring conductive temperature |
| JP2016539316A (en) * | 2013-09-25 | 2016-12-15 | スリーエム イノベイティブ プロパティズ カンパニー | Compositions, devices and methods for capacitive temperature sensing |
| US10139288B2 (en) | 2013-09-25 | 2018-11-27 | 3M Innovative Properties Company | Compositions, apparatus and methods for capacitive temperature sensing |
| US10386244B2 (en) | 2013-09-25 | 2019-08-20 | 3M Innovative Properties Company | Compositions, apparatus and methods for capacitive temperature sensing |
| EP3394582A4 (en) * | 2015-12-21 | 2019-08-14 | 3M Innovative Properties Company | Real-time temperature measurement for electrical conductors |
| US11067455B2 (en) | 2015-12-21 | 2021-07-20 | 3M Innovative Properties Company | Real-time temperature measurement for electrical conductors |
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