JPS63199081U - - Google Patents
Info
- Publication number
- JPS63199081U JPS63199081U JP8969287U JP8969287U JPS63199081U JP S63199081 U JPS63199081 U JP S63199081U JP 8969287 U JP8969287 U JP 8969287U JP 8969287 U JP8969287 U JP 8969287U JP S63199081 U JPS63199081 U JP S63199081U
- Authority
- JP
- Japan
- Prior art keywords
- blast
- dynamic speaker
- voice coil
- cone
- detects
- 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
- 238000001514 detection method Methods 0.000 claims 1
- 238000005422 blasting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Description
第１図は本考案発破検知器の実施例における電
気回路図である。
１……ダイナミツクスピーカーのコーン、２…
…ボイスコイル、３……コンパレーター、４……
波形整形器、５……インピーダンス整合トランス
。
FIG. 1 is an electrical circuit diagram of an embodiment of the blasting detector of the present invention. 1...Dynamic speaker cone, 2...
...Voice coil, 3...Comparator, 4...
Waveform shaper, 5... Impedance matching transformer.
Claims (1)
検知する爆風検出部と、前記ダイナミツクスピー
カーのボイスコイルに発生する電圧を比較するコ
ンパレータ部とを具えたことを特徴とする発破検
知器。 1. A blast detector comprising: a blast detection section that detects a blast wave using a cone of a dynamic speaker; and a comparator section that compares voltages generated in a voice coil of the dynamic speaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987089692U JPH0453546Y2 (en) | 1987-06-12 | 1987-06-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987089692U JPH0453546Y2 (en) | 1987-06-12 | 1987-06-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63199081U true JPS63199081U (en) | 1988-12-21 |
| JPH0453546Y2 JPH0453546Y2 (en) | 1992-12-16 |
Family
ID=30948897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987089692U Expired JPH0453546Y2 (en) | 1987-06-12 | 1987-06-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0453546Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017145436A (en) * | 2016-02-15 | 2017-08-24 | 日本特殊炉材株式会社 | Frame spray apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5029843U (en) * | 1973-07-13 | 1975-04-04 |
-
1987
- 1987-06-12 JP JP1987089692U patent/JPH0453546Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5029843U (en) * | 1973-07-13 | 1975-04-04 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017145436A (en) * | 2016-02-15 | 2017-08-24 | 日本特殊炉材株式会社 | Frame spray apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0453546Y2 (en) | 1992-12-16 |
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