JPH01105871U - - Google Patents
Info
- Publication number
- JPH01105871U JPH01105871U JP80788U JP80788U JPH01105871U JP H01105871 U JPH01105871 U JP H01105871U JP 80788 U JP80788 U JP 80788U JP 80788 U JP80788 U JP 80788U JP H01105871 U JPH01105871 U JP H01105871U
- Authority
- JP
- Japan
- Prior art keywords
- amplifier
- electric wire
- buried electric
- buzzer
- comparator
- 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
- 239000003990 capacitor Substances 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 1
- 239000013256 coordination polymer Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Locating Faults (AREA)
Description
図面は本考案の配線図である。
ＡＴ１，ＡＴ２……ダイポールアンテナ、ＳＷ
１，ＳＷ２……開閉スイツチ、Ｃ……コンデンサ
、Ｒ，Ｒｆ……抵抗器、ＶＲＡ，ＶＲＬ，ＶＲＳ
……可変抵抗器、ＶＲＡ……差動増幅器、Ａ……
増幅器、ＰＡ……電力増幅器、ＣＰ……比較器、
ＺＤ……ツエナーダイオード、Ｄ……ダイオード
、ＶＵ……メーター、ＲＬ……継電器、ＢＺ……
ブザー、Ｌ……ランプ、ＥＷ……埋設電線。
The drawing is a wiring diagram of the present invention. AT1, AT2...Dipole antenna, SW
1, SW2...Open/close switch, C...Capacitor, R, Rf...Resistor, VRA, VRL, VRS
...Variable resistor, VRA...Differential amplifier, A...
Amplifier, PA...Power amplifier, CP...Comparator,
ZD...Zener diode, D...diode, VU...meter, RL...relay, BZ...
Buzzer, L...Lamp, EW...Buried electric wire.
Claims (1)
該電線と平行に前後１組のダイポールアンテナを
配設し、これらのそれぞれより差動増幅器の入力
側に配線し、この出力側からコンデンサ、可変抵
抗器を経て増幅器へ接続し、これよりコンデンサ
、可変抵抗器を経てメータを配置し、さらに別に
一端より基準電圧を入力加圧してこれと比較を行
う比較器を具設し、この他端へ前記増幅器からの
出力線を分岐して接続し、該比較器の出力側には
ダイオードを取設して電力増幅器を接続し、なお
継電器、ブザー及びランプを装設して成る検出装
置を容器に収容し、この容器を上記埋設電線路に
沿つて人力又は動力により移動させ、メータ又は
ブザーあるいはランプにより断線個所を検出する
ことを特徴とする埋設電線の断線箇所検出装置。 A pair of dipole antennas (front and rear) are arranged in parallel with the buried electric wire to which AC voltage is applied, and each of these dipole antennas is wired to the input side of the differential amplifier. A meter is connected via a capacitor and a variable resistor, and a comparator is installed to input and pressurize a reference voltage from one end and compare it with this.The other end is connected to an amplifier. The output line from the amplifier is branched and connected, a diode is installed on the output side of the comparator and a power amplifier is connected, and a detection device comprising a relay, a buzzer, and a lamp is housed in the container. An apparatus for detecting a disconnection point of a buried electric wire, characterized in that the container is moved by human power or power along the buried electric wire line, and the disconnection point is detected by a meter, a buzzer, or a lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP80788U JPH0623971Y2 (en) | 1988-01-06 | 1988-01-06 | Device for detecting broken points in buried wires |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP80788U JPH0623971Y2 (en) | 1988-01-06 | 1988-01-06 | Device for detecting broken points in buried wires |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01105871U true JPH01105871U (en) | 1989-07-17 |
| JPH0623971Y2 JPH0623971Y2 (en) | 1994-06-22 |
Family
ID=31200144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP80788U Expired - Lifetime JPH0623971Y2 (en) | 1988-01-06 | 1988-01-06 | Device for detecting broken points in buried wires |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0623971Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006279526A (en) * | 2005-03-29 | 2006-10-12 | Mitsubishi Electric Corp | High-frequency communication equipment |
-
1988
- 1988-01-06 JP JP80788U patent/JPH0623971Y2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006279526A (en) * | 2005-03-29 | 2006-10-12 | Mitsubishi Electric Corp | High-frequency communication equipment |
| JP4558553B2 (en) * | 2005-03-29 | 2010-10-06 | 三菱電機株式会社 | High frequency communication equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0623971Y2 (en) | 1994-06-22 |
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