JPS6245127Y2 - - Google Patents
Info
- Publication number
- JPS6245127Y2 JPS6245127Y2 JP5373282U JP5373282U JPS6245127Y2 JP S6245127 Y2 JPS6245127 Y2 JP S6245127Y2 JP 5373282 U JP5373282 U JP 5373282U JP 5373282 U JP5373282 U JP 5373282U JP S6245127 Y2 JPS6245127 Y2 JP S6245127Y2
- Authority
- JP
- Japan
- Prior art keywords
- anode plate
- transducer
- electrode
- storage case
- detector
- 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.)
- Expired
Links
- 230000000737 periodic effect Effects 0.000 claims 1
- 239000002184 metal Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 3
- 239000013535 sea water Substances 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Description
【考案の詳細な説明】
超音波波高計は、周知の通り海底に設置した送
受波器から海面に向つて超音波を送出し、海面か
らの反射波を受信して波高を測定するものである
が、送受波器を収納する例えばステンレスを用い
た金属ケースが電蝕のため犯かされて損傷するの
を防ぐため、防蝕用流電陽極板（以下陽極板と称
す）を金属ケースの適宜個所に取付けている。[Detailed explanation of the invention] As is well known, an ultrasonic wave height meter is a device that sends out ultrasonic waves from a transducer installed on the seabed toward the sea surface and measures the wave height by receiving reflected waves from the sea surface. However, in order to prevent the metal case made of stainless steel, which houses the transducer, from being damaged due to electrolytic corrosion, corrosion-proof galvanic anode plates (hereinafter referred to as anode plates) are placed at appropriate locations on the metal case. It is installed on.
防蝕は、陽極板と金属ケース間に電位差がある
ため、陽極板から防蝕電流が流れることによつて
行なわれるが、電流の流出に伴い陽極板が次第に
消耗するので、適当な時期に新しいものと交換し
なければならない。 Corrosion protection is achieved by a corrosion-protective current flowing from the anode plate due to the potential difference between the anode plate and the metal case, but as the current flows out, the anode plate gradually wears out, so it is necessary to replace it with a new one at an appropriate time. Must be replaced.
しかし、送受波器の設置場所、使用する季節、
形状、大きさ等によつて消耗の進行速度が異なる
ので、現状は安全を期し経験から推定したかなり
早い時期に交換している。 However, the installation location of the transducer, the season of use,
The rate of wear and tear varies depending on the shape, size, etc., so to be on the safe side, we currently replace them at a fairly early stage estimated from experience.
本考案はかゝる現状に鑑み、陽極板の適当な位
置に電極を埋込んだ構造とし、陽極板が消耗して
電極が海水にさらされた状態になると、陽極板と
電極間の抵抗が変るのを利用し、抵抗の差を生じ
たときこれを検出することによつて信号をつく
り、この信号を送受波器に結ばれた海底ケーブル
を通して陸上に伝送し、陽極板が消耗したことを
アラームなどで知らせるようにしたものである。 In view of the current situation, the present invention has a structure in which the electrode is embedded in the appropriate position of the anode plate, and when the anode plate is worn out and the electrode is exposed to seawater, the resistance between the anode plate and the electrode decreases. A signal is created by detecting a difference in resistance when it occurs, and this signal is transmitted to shore through a submarine cable connected to a transducer to detect when the anode plate has worn out. This is to be notified by an alarm or the like.
次に実施例の図面を参照して詳細に説明する。 Next, embodiments will be described in detail with reference to the drawings.
第１図イは裁断側面図、第１図ロは第１図イに
おける陽極板の平面図であり、１は送受波器の収
納ケース、２はケース１の外面適所に取付けられ
た陽極板、該陽極板２は表面に設けた穴３から工
具を挿入し、埋金具４を介してボルト５でケース
１に固定したあと、前記穴３を充填剤６を入れて
ふさいである。７は前記陽極板２にネジ込まれた
電極、８は絶縁兼密封用のブツシング、９は信号
発生器、１０は前記電極７と該信号発生器９を結
ぶリード線、１１は該信号発生器９と前記ケース
１とを結ぶリード線である。 FIG. 1A is a cut side view, and FIG. 1B is a plan view of the anode plate in FIG. A tool is inserted into the anode plate 2 through a hole 3 provided on the surface thereof, and the anode plate 2 is fixed to the case 1 with a bolt 5 via a metal fitting 4, and then a filler 6 is put into the hole 3 to close it. 7 is an electrode screwed into the anode plate 2, 8 is a bushing for insulation and sealing, 9 is a signal generator, 10 is a lead wire connecting the electrode 7 and the signal generator 9, and 11 is the signal generator. 9 and the case 1 is a lead wire.
この状態では、リード線１０と１１間の抵抗値
は０オームである。 In this state, the resistance value between lead wires 10 and 11 is 0 ohm.
ところが時間の経過につれて前記陽極板２の消
耗が進んで次第に脱落し、前記電極７が海水中に
露出するに至ると、前記リード線１０と１１間の
抵抗値は数キロオーム程度となる。 However, as time passes, the anode plate 2 wears out and gradually falls off, and when the electrode 7 is exposed in seawater, the resistance between the lead wires 10 and 11 becomes approximately several kilohms.
そこで前記信号発生器９が、第３図のブロツク
ダイヤグラムに示す如く、単安定マルチ２１、検
出器２２、制御器付発振器２３、電力増巾器２４
などで構成されており、波高計用送受波器に陸上
から結ばれた伝送用ケーブル２５を通して周期
T0で送られる送受波器駆動用のパルスP1（第３
図イ参照）を受けて単安定マルチ２１がT1時間
だけ駆動（第３図ロ参照）され、その出力が制御
器付発振器２３に印加される。そしてこの発振器
２３には検出器２２によつて前記電極７が海水中
にさらされた時の前記リード線１０と１１間の抵
抗値の変化量が検出されたときだけ前記検出器２
２の出力が印加されるから、その場合に限り前記
単安定マルチ２１の作動時間T1に相当する間、
前記発振器２３から信号（第３図ハ参照）が発生
され電力増巾器２４を経てケーブル２５を通つて
陸上に伝送される。 Therefore, as shown in the block diagram of FIG.
It consists of a wave height meter transducer and a transmission cable 25 connected from land to the wave height meter.
Pulse P 1 (third pulse) for driving the transducer sent at T 0
In response to this signal (see Figure A), the monostable multi 21 is driven for a time T1 (see Figure 3B), and its output is applied to the oscillator with controller 23. The oscillator 23 is activated only when the detector 22 detects the amount of change in resistance between the lead wires 10 and 11 when the electrode 7 is exposed to seawater.
Since an output of 2 is applied, only in that case, for a period corresponding to the operating time T 1 of the monostable multi 21,
A signal (see FIG. 3C) is generated from the oscillator 23, passed through a power amplifier 24, and transmitted to land via a cable 25.
したがつて陸上では伝送された信号を受け、ラ
ンプを点灯するとかアラームを鳴らすなどの手段
で知らせるようにすれば、陽極板を交換しなけれ
ばならないことを認識することができる。 Therefore, on land, if the transmitted signal is received and notified by means such as lighting a lamp or sounding an alarm, it is possible to recognize that the anode plate needs to be replaced.
第１図イは実施例の裁断側面図、第１図ロは陽
極板の平面図、第２図は信号発生器のブロツクダ
イヤグラム、第３図は作動説明図。
１……送受波器用収納ケース、２……陽極板、
３……穴、４……埋金具、５……ボルト、６……
充填剤、７……電極、８……ブツシング、９……
電極発生器、１０，１１……リード線、２１……
単安定マルチ、２２……検出器、２３……制御器
付発振器、２４……電力増巾器、２５……ケーブ
ル。
FIG. 1A is a cutaway side view of the embodiment, FIG. 1B is a plan view of the anode plate, FIG. 2 is a block diagram of the signal generator, and FIG. 3 is an operational diagram. 1...Storage case for transducer, 2...Anode plate,
3...hole, 4...metal fitting, 5...bolt, 6...
Filler, 7... Electrode, 8... Bushing, 9...
Electrode generator, 10, 11... Lead wire, 21...
Monostable multi, 22...detector, 23...oscillator with controller, 24...power amplifier, 25...cable.
Claims (1)
の外面適所に固定された防蝕用流電陽極板と、該
陽極板にネジ込まれた電極と、前記収納ケースの
内部には該電極と前記収納ケース間の抵抗値の変
化量を検出する検出器と、海底ケーブルを通して
陸上から送られてくる前記送受波器の駆動用周期
パルスを受けて駆動される単安定マルチと、該単
安定マルチ及び前記検出器の出力とが同時に印加
されたとき信号を発生する信号発生器を具備する
ことを特徴とする超音波波高計用送受波器。 A corrosion-proof galvanic anode plate fixed to a suitable position on the outer surface of a storage case for a transducer installed and used on the seabed, an electrode screwed into the anode plate, and an electrode and the storage case inside the storage case. a detector for detecting the amount of change in resistance value between cases; a monostable multi driven by receiving periodic pulses for driving the transducer transmitted from land through a submarine cable; 1. A transducer for an ultrasonic wave height meter, comprising a signal generator that generates a signal when the output of a detector is applied simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5373282U JPS58156216U (en) | 1982-04-15 | 1982-04-15 | Transducer for ultrasonic wave height meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5373282U JPS58156216U (en) | 1982-04-15 | 1982-04-15 | Transducer for ultrasonic wave height meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58156216U JPS58156216U (en) | 1983-10-19 |
| JPS6245127Y2 true JPS6245127Y2 (en) | 1987-12-02 |
Family
ID=30064383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5373282U Granted JPS58156216U (en) | 1982-04-15 | 1982-04-15 | Transducer for ultrasonic wave height meter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58156216U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0545927Y2 (en) * | 1987-06-04 | 1993-11-30 |
-
1982
- 1982-04-15 JP JP5373282U patent/JPS58156216U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58156216U (en) | 1983-10-19 |
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