JPH038780U - - Google Patents
Info
- Publication number
- JPH038780U JPH038780U JP6950389U JP6950389U JPH038780U JP H038780 U JPH038780 U JP H038780U JP 6950389 U JP6950389 U JP 6950389U JP 6950389 U JP6950389 U JP 6950389U JP H038780 U JPH038780 U JP H038780U
- Authority
- JP
- Japan
- Prior art keywords
- resistance
- continuity
- resistances
- buzzer
- conduction
- 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
- 238000010586 diagram Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Description
第１図は本考案の一実施例の構成図である。
１……導通試験器回路、２ａ，２ｂ……プロー
ブ、３ａ〜３ｃ……判定基準抵抗、４……スピー
カ、５……判定基準抵抗値切替回路、５１……パ
ルス発生器、５２……バイナリカウンタ、５３…
…デコーダ、５４ａ〜５４ｃ……リレー駆動部、
５４ａ１，５４ｂ１，５４ａ２，５４ｂ２，５４
ｃ２……リレー接点、５５ａ〜５５ｃ……ブザー
信号発生器。
FIG. 1 is a block diagram of an embodiment of the present invention. 1... Continuity tester circuit, 2a, 2b... Probe, 3a to 3c... Judgment reference resistance, 4... Speaker, 5... Judgment reference resistance value switching circuit, 51... Pulse generator, 52... Binary Counter, 53...
...Decoder, 54a to 54c...Relay drive unit,
54a1, 54b1, 54a2, 54b2, 54
c2...Relay contact, 55a-55c...Buzzer signal generator.
Claims (1)
抵抗と比較し前記導通抵抗が前記判定基準抵抗以
下であれば導通有りと判定してブザーを鳴動し前
記判定基準抵抗以上であれば導通なしと判定して
ブザーは鳴通しない形式で電子回路基板上の２点
間の導通上を試験する導通試験器において、 前記判定基準抵抗を相異る抵抗値を有する３個
の抵抗で設定するとともに前記３個の判定基準抵
抗を順次周期的に切り替えつつ導通抵抗を測定し
かつブザーの鳴動周波数は３個の判定基準抵抗ご
とにそれぞれ異なる周波数を設定する手段を備え
て成ることを特徴とする導通試験器。[Claims for Utility Model Registration] The conduction resistance between two points on an electronic circuit board is compared with a determination reference resistance, and if the conduction resistance is less than or equal to the determination reference resistance, it is determined that there is conduction, and a buzzer is sounded to make the determination. In a continuity tester that tests continuity between two points on an electronic circuit board in such a way that if the resistance is greater than or equal to the reference resistance, it is determined that there is no continuity and the buzzer does not sound, the reference resistance has a different resistance value. The apparatus is equipped with a means for measuring continuity resistance by setting three resistances and sequentially and periodically switching the three judgment reference resistances, and setting a buzzer sounding frequency to a different frequency for each of the three judgment reference resistances. A continuity tester characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6950389U JPH038780U (en) | 1989-06-13 | 1989-06-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6950389U JPH038780U (en) | 1989-06-13 | 1989-06-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH038780U true JPH038780U (en) | 1991-01-28 |
Family
ID=31604862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6950389U Pending JPH038780U (en) | 1989-06-13 | 1989-06-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH038780U (en) |
-
1989
- 1989-06-13 JP JP6950389U patent/JPH038780U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH038780U (en) | ||
| JPH03116490U (en) | ||
| JPH01102783U (en) | ||
| JPS59168794U (en) | tempo setting device | |
| JPS6424563U (en) | ||
| JPS6230185U (en) | ||
| JPH0451615U (en) | ||
| JPH0262499U (en) | ||
| JPS593624Y2 (en) | Sample/hold circuit | |
| JPS63181080U (en) | ||
| JPH0416375U (en) | ||
| JPS63156039U (en) | ||
| JPS5866369U (en) | Frequency characteristic measurement device | |
| JPS6439160U (en) | ||
| JPS6063897U (en) | Panel operation device for electronic musical instruments | |
| JPH0232128U (en) | ||
| JPH01160598U (en) | ||
| JPS62147078U (en) | ||
| JPH01144871U (en) | ||
| JPS62176751U (en) | ||
| JPH0374365U (en) | ||
| JPS6421493U (en) | ||
| Merhaut | Impulse measurement of electrical and acoustic impedances. | |
| JPS61140408U (en) | ||
| JPS61123981U (en) |