JP2000284001A - Underwater potential measuring device - Google Patents
Underwater potential measuring deviceInfo
- Publication number
- JP2000284001A JP2000284001A JP11090623A JP9062399A JP2000284001A JP 2000284001 A JP2000284001 A JP 2000284001A JP 11090623 A JP11090623 A JP 11090623A JP 9062399 A JP9062399 A JP 9062399A JP 2000284001 A JP2000284001 A JP 2000284001A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- amplifier
- underwater
- switch
- potential measuring
- 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.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、海中の電位を測
定する海中電位測定装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underwater potential measuring device for measuring a potential in the sea.
【０００２】[0002]
【従来の技術】一般に、海中電位測定装置は、海中設置
部と、伝送ケーブル部と、陸上設置部から構成され、従
来構成上、図１、図２、図３に示すタイプのものがあ
る。図１の海中電位測定装置は、海中設置部１には電極
４A 、４B のみを備え、陸上設置部３に商用の電源部５
及び増幅器６を設けたものである。図２の海中電位測定
装置は、海中設置部１に電極４A 、４B と、増幅器６を
備え、陸上設置部３に商用の電源部５を設けたものであ
る。また、図３の海中電位測定装置は、海中設置部１に
電極４A 、４B 、増幅器６及び商用電源部５を備えたも
のである。2. Description of the Related Art In general, an undersea potential measuring apparatus comprises an undersea installation section, a transmission cable section, and a land installation section. Conventionally, there are types shown in FIGS. 1, 2 and 3. The undersea potential measuring apparatus shown in FIG. 1 includes only the electrodes 4 A and 4 B in the undersea installation section 1 and the commercial power supply section 5 in the onshore installation section 3.
And an amplifier 6. The undersea potential measuring apparatus shown in FIG. 2 is provided with electrodes 4 A and 4 B and an amplifier 6 in the undersea installation section 1, and a commercial power supply section 5 in the land installation section 3. The undersea potential measuring apparatus shown in FIG. 3 is provided with electrodes 4 A and 4 B , an amplifier 6, and a commercial power supply unit 5 in the underwater installation unit 1.
【０００３】[0003]
【発明が解決しようとする課題】上記した従来の海中電
位測定装置のうち、図１に示すものは、増幅器を陸上設
置部に設けるものであるからＳ／Ｎが悪いという問題が
ある。図２、図３に示すものは、海中設置部に増幅器を
備えるものであるから、Ｓ／Ｎは改善されているが、増
幅器に電力を供給する電源ラインから商用周波数及びそ
の高調波成分が増幅器に混入する。そのため、増幅器に
て微小な信号を十分に増幅することができないし、また
これらの周波数成分の電位を測定することができない、
という問題があった。Among the above-mentioned conventional underwater potential measuring devices, the one shown in FIG. 1 has a problem that the S / N is poor because the amplifier is provided on a land-based installation part. 2 and 3 are provided with an amplifier in the underwater installation, the S / N is improved, but the commercial frequency and its harmonic components are supplied from the power supply line for supplying power to the amplifier. Mixed in. Therefore, a small signal cannot be sufficiently amplified by the amplifier, and the potential of these frequency components cannot be measured.
There was a problem.
【０００４】この発明は上記問題点に着目してなされた
ものであって、電源系統から混入する商用周波数及びそ
の高調波成分の雑音を低減する海中電位測定装置を提供
することを目的としている。The present invention has been made in view of the above problems, and has as its object to provide an underwater potential measuring apparatus for reducing noise of a commercial frequency and its harmonic components mixed in from a power supply system.
【０００５】[0005]
【課題を解決するための手段】この発明の海中電位測定
装置は、海中設置部に、海中の電位差を検出する電極
と、この電極で検出された電位差を増幅する増幅器とを
備えるものにおいて、前記海中設置部に、前記増幅器を
駆動するための電池と、この電池への充電系統である電
源に接続されたラインを接／断するスイッチとを備えて
いる。According to the present invention, there is provided an undersea potential measuring apparatus, comprising: an underwater installation portion having an electrode for detecting a potential difference in the sea, and an amplifier for amplifying the potential difference detected by the electrode. The undersea installation unit includes a battery for driving the amplifier, and a switch for connecting / disconnecting a line connected to a power supply which is a charging system for the battery.
【０００６】この海中電位測定装置では、測定時はスイ
ッチを断しておき、電池で増幅器を駆動する。そのた
め、増幅器に商用周波数及びその高調波成分の雑音が混
入するのを避けることができる。電池の電圧が低下して
きた時点で、あるいは一定時間毎にスイッチをオンし
て、電池を電源部からスイッチを介して充電する。In this undersea potential measuring device, the switch is turned off during measurement, and the amplifier is driven by a battery. Therefore, it is possible to avoid the noise of the commercial frequency and its harmonic components from being mixed into the amplifier. The switch is turned on at the time when the voltage of the battery decreases or at regular intervals, and the battery is charged from the power supply unit via the switch.
【０００７】[0007]
【発明の実施の形態】以下、実施の形態により、この発
明をさらに詳細に説明する。図４は、この発明の一実施
形態である海中電位測定装置の原理的構成を示すブロッ
ク図である。この実施形態海中電位測定装置は、海中測
定部１と、伝送ケーブル部２と、陸上設置部３とから構
成されている。DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in more detail with reference to embodiments. FIG. 4 is a block diagram showing a basic configuration of a submarine potential measuring device according to an embodiment of the present invention. The undersea potential measuring apparatus according to the embodiment includes an underwater measuring unit 1, a transmission cable unit 2, and a land-based installation unit 3.
【０００８】海中設置部１には、海中の電位差を検出す
る電極４A 、４B と、検出した電位差つまり電圧を増幅
する増幅器６と、この増幅器６を駆動するための電池７
と、制御信号ＣＳによって接／断されるスイッチ８とを
備えている。電池７は充電可能なものが使用される。陸
上設置部３には商用電源部５を備えるほか、制御信号Ｃ
Ｓを出力し、また増幅器６からの出力を信号処理する制
御部３ａを備えている。電源部５と電池７間は、電力伝
送ライン９で接続され、この電力伝送ライン９にスイッ
チ８が接続されている。また、増幅器６の出力は出力信
号線１０によって陸上設置部３に伝送される。The underwater installation section 1 includes electrodes 4 A and 4 B for detecting a potential difference in the sea, an amplifier 6 for amplifying the detected potential difference, that is, a voltage, and a battery 7 for driving the amplifier 6.
And a switch 8 connected / disconnected by the control signal CS. A rechargeable battery is used. The land-based installation unit 3 includes a commercial power supply unit 5 and a control signal C
A controller 3a for outputting S and processing the output from the amplifier 6 is provided. The power supply unit 5 and the battery 7 are connected by a power transmission line 9, and a switch 8 is connected to the power transmission line 9. Further, the output of the amplifier 6 is transmitted to the land-based installation unit 3 via the output signal line 10.
【０００９】この実施形態海中電位測定装置は、通常、
スイッチ８を断しており、電池７によって増幅器６が駆
動され、増幅器６は電極４A 、４B の電位差を検出し、
その出力を出力信号線１０により、陸上設置部３に伝送
する。電池７を充電する時は信号ＣＳによってスイッチ
８を“接”にし、電源部５より電力伝送ライン９、スイ
ッチ８を経て、電力を伝送する。充電は定期的に信号Ｃ
Ｓを送るようにしているが、電池７の電圧低下検知回路
を海中設置部１に設けておき、電圧低下検知でスイッチ
８をオンしてもよい。The undersea potential measuring apparatus of this embodiment is usually
Has cross switch 8, the amplifier 6 is driven by the battery 7, the amplifier 6 detects the potential difference between the electrodes 4 A, 4 B,
The output is transmitted to the on-shore installation unit 3 via the output signal line 10. When charging the battery 7, the switch 8 is turned “ON” by the signal CS, and power is transmitted from the power supply unit 5 through the power transmission line 9 and the switch 8. Charging is periodically signal C
Although S is sent, the voltage drop detection circuit of the battery 7 may be provided in the undersea installation section 1 and the switch 8 may be turned on when the voltage drop is detected.
【００１０】図５は、この発明の他の実施形態海中電位
測定装置の構成を示すブロック図である。この実施形態
海中電位測定装置は、電池への充電に使用する電力伝送
ライン９の接／断をリレーにより行うものである。海中
設置部１には海中電位を検出する電極４A 、４B と、増
幅器６と、充電可能な電池７と、リレーコイル１５、１
６と、リレー接点１５ａ、１６ａとを備えている。リレ
ー接点１５ａは電力伝送ライン９に接続され、リレー接
点１６ａは電池７と、増幅器６の電源電圧端子間に接続
されている。FIG. 5 is a block diagram showing a configuration of an undersea potential measuring apparatus according to another embodiment of the present invention. In this embodiment, the undersea potential measuring device is configured to connect / disconnect a power transmission line 9 used for charging a battery by a relay. And electrodes 4 A, 4 B for detecting underwater potential underwater installation unit 1, an amplifier 6, a rechargeable battery 7, the relay coil 15, 1
6 and relay contacts 15a and 16a. The relay contact 15a is connected to the power transmission line 9, and the relay contact 16a is connected between the battery 7 and the power supply voltage terminal of the amplifier 6.
【００１１】陸上設置部３には、商用電源部５の他に絶
縁アンプ１１、リレー用電源１２、操作スイッチ１３、
１４等を備える制御部３ａを有する。操作スイッチ１
３、１４はライン１７、１８により、リレーコイル１
５、１６がリレー用電源１２に並列接続される回路を個
別に接／断するために設けている。この海中電位測定装
置において、電池７を充電する場合は、陸上設置部３の
スイッチ１３をオンする。これにより、リレーコイル１
５が通電され、リレー接点１５ａを接とする。商用電源
部５から電力伝送ライン９、リレー接点１５ａを介し、
電池７が充電される。海中電位を測定する時は、陸上設
置部３のスイッチ１４をオンする。これにより、リレー
コイル１６に通電され、リレー接点１６を接とする。電
池７の電圧がリレー接点１６ａを通して増幅器６に与え
られ、増幅器６の駆動によって電極４A 、４B の電位差
が検出され、増幅器６の出力が出力信号１０を経て、絶
縁アンプ１１に出力される。絶縁アンプ１１は海中設置
部１と商用電源部５の電源ライン及びアースの間に、閉
回路ができないようにし、商用電源周波数及びその高調
波成分の低減を行っている。測定を実行しない時は、ス
イッチ１４をオフし、リレー接点１６ａを開いておく
と、電池７の消耗を軽減できる。The land-based installation unit 3 includes an insulation amplifier 11, a relay power supply 12, an operation switch 13,
It has a control unit 3a including 14 and the like. Operation switch 1
3 and 14 are relay coils 1 by lines 17 and 18.
Reference numerals 5 and 16 are provided for individually connecting / disconnecting circuits connected in parallel to the relay power supply 12. In this underwater potential measuring device, when charging the battery 7, the switch 13 of the onshore installation unit 3 is turned on. Thereby, the relay coil 1
5 is energized and the relay contact 15a is brought into contact. From the commercial power supply unit 5 via the power transmission line 9 and the relay contact 15a,
Battery 7 is charged. When measuring the underwater potential, the switch 14 of the onshore installation unit 3 is turned on. As a result, the relay coil 16 is energized to bring the relay contact 16 into contact. Voltage of the battery 7 is supplied to the amplifier 6 through the relay contacts 16a, a potential difference of the electrodes 4 A, 4 B is detected by the driving of the amplifier 6, the output of the amplifier 6 through the output signal 10 is output to the isolation amplifier 11 . The insulation amplifier 11 prevents a closed circuit from being formed between the power line and the ground of the underwater installation section 1 and the commercial power supply section 5, and reduces the commercial power frequency and its harmonic components. When the measurement is not performed, the switch 14 is turned off and the relay contact 16a is opened, so that the consumption of the battery 7 can be reduced.
【００１２】なお、商用電源部５からの電源電圧は、商
用電源から直流電圧に変換されたものであってもよい。
リレーコイル１５、１６の通電は、スイッチ１３、１４
で制御しているが、電池７の残容量（電圧）を検知し、
これにより制御してもよい。また、電極を２対使用し、
２軸化する場合は１軸につき電池、充電ライン、及びこ
れを接／断するスイッチを使用するとよい。これによ
り、微小電圧を測定する必要のない場合は電池を充電し
ながら測定することも可能となる。また、海中設置部は
電気的にフローティング状態となり、海中の電位分布を
乱さない。Note that the power supply voltage from the commercial power supply unit 5 may be converted from a commercial power supply to a DC voltage.
The energization of the relay coils 15 and 16 is controlled by the switches 13 and 14
, But the remaining capacity (voltage) of the battery 7 is detected,
This may be controlled. Also, use two pairs of electrodes,
When two axes are used, it is preferable to use a battery, a charging line, and a switch for connecting / disconnecting the same for each axis. Thereby, when it is not necessary to measure the minute voltage, the measurement can be performed while charging the battery. Further, the undersea installation portion is in an electrically floating state, and does not disturb the undersea potential distribution.
【００１３】[0013]
【発明の効果】この発明によれば、海中設置部に増幅器
を駆動するための電池と、この電池への充電系統である
電源に接続されたラインを接／断するスイッチを備えて
いるので、増幅器に商用電源周波数及びその高調波の雑
音が混入することがなくなり、微小電位でも精度よく測
定できる。According to the present invention, since a battery for driving the amplifier is provided in the underwater installation section, and a switch for connecting / disconnecting a line connected to a power supply which is a charging system for the battery is provided. The noise of the commercial power supply frequency and its harmonics does not enter the amplifier, and it is possible to accurately measure even a minute potential.
【図１】従来の海中電位測定装置の一例を示すブロック
図である。FIG. 1 is a block diagram showing an example of a conventional underwater potential measuring device.
【図２】従来の海中電位測定装置の他の例を示すブロッ
ク図である。FIG. 2 is a block diagram showing another example of a conventional undersea potential measuring device.
【図３】従来の海中電位測定装置の他の例を示すブロッ
ク図である。FIG. 3 is a block diagram showing another example of a conventional underwater potential measuring device.
【図４】この発明の一実施形態である海中電位測定装置
の基本構成を示すブロック図である。FIG. 4 is a block diagram showing a basic configuration of an undersea potential measuring device according to an embodiment of the present invention.
【図５】この発明の他の実施形態である海中電位測定装
置の基本構成を示すブロック図である。FIG. 5 is a block diagram showing a basic configuration of an undersea potential measuring device according to another embodiment of the present invention.
１ 海中設置部 ２ 伝送ケーブル部 ３ 陸上設置部 ４A 、４B 電極 ５ 商用電源部 ６ 増幅部 ７ 電池 ９ 電力伝送ライン １０ 出力信号線 １３、１４ スイッチ １５、１６ リレーコイル １５ａ、１６ａ リレー接点REFERENCE SIGNS LIST 1 Underwater installation part 2 Transmission cable part 3 Land installation part 4 A , 4 B electrode 5 Commercial power supply part 6 Amplification part 7 Battery 9 Power transmission line 10 Output signal line 13, 14 Switch 15, 16 Relay coil 15a, 16a Relay contact
Claims (1)
極と、この電極で検出された電位差を増幅する増幅器と
を備える海中電位測定装置において、 前記海中設置部に、前記増幅器を駆動するための電池
と、この電池への充電系統である電源に接続されたライ
ンを接／断するスイッチとを備えたことを特徴とする海
中電位測定装置。1. An underwater potential measuring device comprising: an electrode for detecting a potential difference in the sea; and an amplifier for amplifying the potential difference detected by the electrode, wherein the underwater installation unit drives the amplifier. An underwater potential measuring device, comprising: a battery for charging the battery; and a switch for connecting / disconnecting a line connected to a power supply which is a charging system for the battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09062399A JP4739474B2 (en) | 1999-03-31 | 1999-03-31 | Underwater potential measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09062399A JP4739474B2 (en) | 1999-03-31 | 1999-03-31 | Underwater potential measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000284001A true JP2000284001A (en) | 2000-10-13 |
| JP4739474B2 JP4739474B2 (en) | 2011-08-03 |
Family
ID=14003624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP09062399A Expired - Lifetime JP4739474B2 (en) | 1999-03-31 | 1999-03-31 | Underwater potential measuring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4739474B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009020030A (en) * | 2007-07-13 | 2009-01-29 | Shimadzu Corp | Device for measuring underwater electromagnetic field |
| CN109728619A (en) * | 2017-10-31 | 2019-05-07 | 中国科学院沈阳自动化研究所 | A kind of underwater charging unit and control method for AUV |
-
1999
- 1999-03-31 JP JP09062399A patent/JP4739474B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009020030A (en) * | 2007-07-13 | 2009-01-29 | Shimadzu Corp | Device for measuring underwater electromagnetic field |
| CN109728619A (en) * | 2017-10-31 | 2019-05-07 | 中国科学院沈阳自动化研究所 | A kind of underwater charging unit and control method for AUV |
| CN109728619B (en) * | 2017-10-31 | 2022-11-08 | 中国科学院沈阳自动化研究所 | Underwater charging device for AUV (autonomous underwater vehicle) and control method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4739474B2 (en) | 2011-08-03 |
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