JPS60151563A - Lightning resistant type air speedometer - Google Patents
Lightning resistant type air speedometerInfo
- Publication number
- JPS60151563A JPS60151563A JP822584A JP822584A JPS60151563A JP S60151563 A JPS60151563 A JP S60151563A JP 822584 A JP822584 A JP 822584A JP 822584 A JP822584 A JP 822584A JP S60151563 A JPS60151563 A JP S60151563A
- Authority
- JP
- Japan
- Prior art keywords
- propeller
- light emitting
- wind velocity
- emitting element
- electromotive force
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01W—METEOROLOGY
- G01W1/00—Meteorology
- G01W1/02—Instruments for indicating weather conditions by measuring two or more variables, e.g. humidity, pressure, temperature, cloud cover or wind speed
- G01W1/04—Instruments for indicating weather conditions by measuring two or more variables, e.g. humidity, pressure, temperature, cloud cover or wind speed giving only separate indications of the variables measured
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
- G01P5/02—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring forces exerted by the fluid on solid bodies, e.g. anemometer
- G01P5/06—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring forces exerted by the fluid on solid bodies, e.g. anemometer using rotation of vanes
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Environmental Sciences (AREA)
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
Abstract
Description
【発明の詳細な説明】
（イ）産業上の利用分野
本発明は、雷サージ等の影響を受けない耐雷形風速計に
関するものである。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a lightning-resistant anemometer that is not affected by lightning surges and the like.
（ロ）従来技術とその問題点
送電線の保守情報システムの中には、気温、風向、風速
、雨着等の気歎観測が含まれ、それらの測定の多くはセ
ンサを利用して行い、その出力を信号処理して監視セン
タに送っている。(b) Conventional technology and its problems The maintenance information system for power transmission lines includes weather observation such as temperature, wind direction, wind speed, and rain cover, and many of these measurements are performed using sensors. The output is signal-processed and sent to a monitoring center.
ところが、送電線は専ら落雷や雷雲の起り易い山間地に
位置しており、一方、上記測定センサは、落雷、雷雲の
影響を受け易く、このため、耐雷形センサの開発が急務
となっている。例えば、本発明の改善対象となる従来の
風速計は、プロペラの回転エネルギを小型の発電機で電
気エネルギに変換し、発電機からの出力信号（電圧信号
）を信号伝送ケーブルに乗せて監視センタに伝送する方
式のものが多くを占めているが、この方式では、ケーブ
ルへの４落雷や雷雲の接近による信号伝送路へのサージ
の混入等のために、信頼性の高い風速情報を伝送するの
は困難である。However, power transmission lines are mostly located in mountainous areas where lightning strikes and thunderclouds are likely to occur, and on the other hand, the above-mentioned measurement sensors are easily affected by lightning strikes and thunderclouds.Therefore, there is an urgent need to develop lightning-resistant sensors. . For example, the conventional anemometer that is the subject of improvement in the present invention converts the rotational energy of a propeller into electrical energy using a small generator, and sends the output signal (voltage signal) from the generator to a signal transmission cable to a monitoring center. However, in this method, highly reliable wind speed information is transmitted due to surges entering the signal transmission path due to lightning strikes on the cable or approaching thunderclouds. is difficult.
（ハ）問題点を解決するための手段
本発明は、上述の欠点を解消した風速計を提供するもの
で、この風速計は、永久磁石を取付けた非磁性体の円板
と、ウィーガンドワイヤ（ＷｉｅｇａｎｄＷｉｒｅ ）
素子と発光素子とを組合せてプロペラの回転数に応じた
光パルスを風速情報として出力するようにしである。そ
の詳しい構成は以下の通りである。(C) Means for Solving the Problems The present invention provides an anemometer that eliminates the above-mentioned drawbacks. (WiegandWire)
The element and the light emitting element are combined to output light pulses corresponding to the rotational speed of the propeller as wind speed information. Its detailed configuration is as follows.
第１図は、本発明の風速計の概略図で、風のカによって
回転するプロペラ１の中心軸２に、その軸と一体となっ
て回転する非磁性体の円板３が取付けられ、さらに、円
板３の一端面には、第２図に示すように、直方体の永久
磁石４が複数個、円板の回転中心と同心円」二に位置し
てかつ磁極の向きを統一して開方向にはゾ定ピッチで放
射状に取付けられている。FIG. 1 is a schematic diagram of the anemometer of the present invention, in which a non-magnetic disc 3 is attached to the central shaft 2 of a propeller 1, which rotates due to the force of the wind, and which rotates integrally with the shaft. As shown in FIG. 2, on one end surface of the disk 3, there are a plurality of rectangular parallelepiped permanent magnets 4 located concentrically with the center of rotation of the disk and with their magnetic poles aligned in the opening direction. are installed radially at a constant pitch.
一方、円板３の近傍には、磁石４の通過による磁界の変
化によって起電力を生ずる°ライ・−ガントワイヤ素子
５を、風向きの変化に伴う円板の変位に対して、その円
板との機械的位置関係が変わらないよう、棒状素子の軸
心を風速計の方位転換軸６の中心に一致させて配置しで
ある。このウィーガンドワイヤ素子５は、第３図に示す
ように、高保磁力の外被部５ａと、低保磁力、高透磁率
の内心部５ｂから成る強磁性体に、コイル５ｃを数千タ
ーン巻いたもので、磁界の強さの増加速度には殆んど関
係なくある一定の磁界の強さ、例えは、その飽和磁界が
＋１２０ガウス、リセット磁界が一２０ガウスであった
とすると、磁界強度が＋１２０エールステッド以、ト及
び−２０エールステツド以下になったとき、瞬時に短か
い電気パルスを発生する。本発明では、その電気パルス
を発光素子６に導き、ここで光パルスに変換した風帽情
報を光ファイバ７を介して監視センタ等に送り、物理的
に数値等に変換するが、既存のウィーガンドワイヤ素子
は、出力パルス中が約２０μｓｅｃ、ｍ大電力４．５Ｗ
、出力電圧２．５ｖ程度であり、この程度の出力で直接
発光素子を駆動するのは困離なため、例示の風速計では
ライ−ガント素子の出力を、太陽電池８や一般的電池、
或いはそれ等を組み合わせたものを電源とする増幅器９
により増幅して発光素子６を駆動するようにしである。On the other hand, in the vicinity of the disk 3, a Ley-Gantt wire element 5, which generates an electromotive force due to changes in the magnetic field caused by the passage of the magnet 4, is installed. The axis of the rod-shaped element is arranged to coincide with the center of the direction change axis 6 of the anemometer so that the mechanical positional relationship does not change. As shown in FIG. 3, this Wiegand wire element 5 consists of a ferromagnetic material consisting of an outer sheath 5a with high coercive force and an inner core 5b with low coercive force and high magnetic permeability, and a coil 5c wound with several thousand turns. For example, if the saturation magnetic field is +120 gauss and the reset magnetic field is 120 gauss, then the magnetic field strength is When the temperature drops below +120 Oersted, -20 Oersted or below, a short electric pulse is instantaneously generated. In the present invention, the electric pulse is guided to the light emitting element 6, where the wind hat information is converted into a light pulse and sent to a monitoring center etc. via the optical fiber 7, where it is physically converted into a numerical value, etc., but the existing Wiegand method The wire element has an output pulse of approximately 20 μsec and a high power of 4.5 W.
, the output voltage is about 2.5V, and it is difficult to directly drive a light emitting element with this level of output, so in the example anemometer, the output of the Leigant element is connected to the solar cell 8, a general battery,
Or an amplifier 9 whose power source is a combination of these
The light emitting element 6 is driven by amplifying the light.
なお、ライ−ガント素子の高出力化が実現すれば無電源
で風速情報を伝送できることは云う迄もない。また、円
板に取付ける永久磁石は多い程正確な風速測定が行える
。It goes without saying that if the Leigant element can be made to have a high output, it will be possible to transmit wind speed information without a power source. Also, the more permanent magnets attached to the disk, the more accurate the wind speed measurement.
に） 実施例 以下に実施例を挙げる。) Example Examples are given below.
回転数と風速（ｍ／５ｅｃ−）との関係が約０．７１７
ｒｐｓ ／ｉｎのプロペラの軸に、第２図に示す如き永
久磁石付きの円板を固着し、さらに、その近傍に、出力
（３４ｍｗの太陽電池と１．２００ｍＡ、６ｖのニッカ
ド電池を併用した電源をもつ増幅器を介して発光ダイオ
ードに接続されるウィーガンドワイヤ素子を配置した風
１車計を試作した。このときの使用ウィーガンドワイヤ
素子は、
出力電圧（無負荷） ２．５Ｖ
飽和磁界 ＋１２０ガウス
リセツト磁界 −２０ガウス
最大出力 ４．５ｗ
コイル巻数 １０００回
で、円板１回転当りに１０パルスを出力するようにした
。The relationship between rotation speed and wind speed (m/5ec-) is approximately 0.717
A disk with a permanent magnet as shown in Fig. 2 is fixed to the shaft of a propeller of rps/in, and a power source (a power source using a combination of a 34 mW solar cell and a 1.200 mA, 6 V NiCd battery) is installed near it. We prototyped a wind turbine meter equipped with a Wiegand wire element connected to a light emitting diode via an amplifier with an output voltage (no load) of 2.5V and a saturation magnetic field of +120 Gauss. Reset magnetic field -20 Gauss Maximum output 4.5W The number of coil turns was 1000, and 10 pulses were output per one rotation of the disk.
この試作品を使用した風洞実験の結果、第４図に示すよ
うに、プロペラの回転数に応じた光パルスが確実に発信
され、その単位時間当りのパルス数から正確な風速の割
り出しが行えた。また、発光ダイオードは６０日間の連
続無日照下でも問題なく作動した。As a result of wind tunnel experiments using this prototype, as shown in Figure 4, light pulses were reliably transmitted according to the propeller rotation speed, and the wind speed could be determined accurately from the number of pulses per unit time. . Furthermore, the light emitting diode operated without problems even under 60 consecutive days of no sunlight.
（ホ） 効 果
以上説明した本発明の風速計によれば、風速に比例する
プロペラの回転数に応じてウィーガンドワイヤ素子に電
力が誘起され、その起電力が光パルスに変換されて出力
されるので、正確な風速測定が可能であり、また、測定
信号（光パルス）の伝送は、電磁誘導を受けない光ファ
イバを介して行うため、雷サージ等の混入しない信頼性
の高い風速情報を得ることができる。(e) Effects According to the anemometer of the present invention described above, electric power is induced in the Wiegand wire element according to the rotation speed of the propeller which is proportional to the wind speed, and the electromotive force is converted into a light pulse and output. In addition, since the measurement signal (light pulse) is transmitted via an optical fiber that is not subject to electromagnetic induction, it is possible to obtain highly reliable wind speed information that is free from contamination by lightning surges, etc. Obtainable.
第１図は、本発明の風速計を概略的に示す線図、第２図
は円板の端面図、第３図はウィーガンドワイヤ素子の一
部破断正面図、第４図は試作品の実験データを表わすグ
ラフである。
１・・・プロペラ、２・・・中心軸、３・・・円板、４
・・・永久磁石、５・・・ウィーガンドワイヤ素子、６
・・・方位転換軸＋’＜−り・光ファイバ、８・・・太
陽電池、９・・・増幅器。Fig. 1 is a diagram schematically showing the anemometer of the present invention, Fig. 2 is an end view of a disk, Fig. 3 is a partially cutaway front view of a Wiegand wire element, and Fig. 4 is a prototype. It is a graph representing experimental data. 1... Propeller, 2... Central shaft, 3... Disc, 4
... Permanent magnet, 5 ... Wiegand wire element, 6
...Direction change axis +'<--optical fiber, 8...Solar cell, 9...Amplifier.
Claims (1)
磁性体の円板を取付け、かつこの円板の一面側には、直
方体の永久磁石の複数個を回転中心と同心円上に位置し
てはゾ定ピッチで放鹸状に取付け、さらに、プロペラの
方位転換軸の中心部に一］二記永久磁石の通過により起
電力を生ずるウィーガンドワイヤ素子を設け、この素子
を直接又は増幅器を介して発光素子に接続したことを特
徴とする耐雷形風速計。A non-magnetic disc that rotates together with the shaft is attached to the propeller's rotating shaft, and a plurality of rectangular parallelepiped permanent magnets are placed on one side of the disc concentrically with the center of rotation. In addition, a Wiegand wire element that generates an electromotive force when the permanent magnet passes through the propeller is installed at the center of the propeller's direction change shaft, and this element can be connected directly or with an amplifier. A lightning-resistant anemometer characterized by being connected to a light emitting element through a light emitting element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP822584A JPS60151563A (en) | 1984-01-19 | 1984-01-19 | Lightning resistant type air speedometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP822584A JPS60151563A (en) | 1984-01-19 | 1984-01-19 | Lightning resistant type air speedometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60151563A true JPS60151563A (en) | 1985-08-09 |
Family
ID=11687225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP822584A Pending JPS60151563A (en) | 1984-01-19 | 1984-01-19 | Lightning resistant type air speedometer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60151563A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5370474A (en) * | 1976-12-03 | 1978-06-22 | Bosch Gmbh Robert | Instrument for generating inducing pulse having amplitude of pulse having not to do with rotation number |
| JPS5630614A (en) * | 1979-08-23 | 1981-03-27 | Derufuai:Kk | Flowmeter |
| JPS5672349A (en) * | 1979-11-19 | 1981-06-16 | Fujitsu Ltd | Wind direction and speed meter of optical type |
-
1984
- 1984-01-19 JP JP822584A patent/JPS60151563A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5370474A (en) * | 1976-12-03 | 1978-06-22 | Bosch Gmbh Robert | Instrument for generating inducing pulse having amplitude of pulse having not to do with rotation number |
| JPS5630614A (en) * | 1979-08-23 | 1981-03-27 | Derufuai:Kk | Flowmeter |
| JPS5672349A (en) * | 1979-11-19 | 1981-06-16 | Fujitsu Ltd | Wind direction and speed meter of optical type |
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