JPS6255131U - - Google Patents
Info
- Publication number
- JPS6255131U JPS6255131U JP14673885U JP14673885U JPS6255131U JP S6255131 U JPS6255131 U JP S6255131U JP 14673885 U JP14673885 U JP 14673885U JP 14673885 U JP14673885 U JP 14673885U JP S6255131 U JPS6255131 U JP S6255131U
- Authority
- JP
- Japan
- Prior art keywords
- detecting
- abnormal sound
- background noise
- measuring
- detection
- 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
- 238000001514 detection method Methods 0.000 claims description 6
- 230000002159 abnormal effect Effects 0.000 claims 5
- 238000005259 measurement Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Description
第1図は本考案に係る検出装置の実施例を示す
ブロツク図、第2図、第3図はそれぞれ第1図に
係る装置の動作を説明するための暗騒音及び防音
箱内での音圧レベルを示す図、第4図は、第1図
ににおけるA/D変換器のデータ取込みのタイミ
ングを示す図である。
1……測定用マイク、5〜7……測定用フイル
タ、8……アナログスイツチ、9〜11……測定
用整流回路、12〜14……測定用Log増幅器
、18……A/D変換器、19……I/Oポート
、20……cpu、21……監視用マイク、25
〜27……監視用フイルタ、28……アナログス
イツチ、29〜31……監視用整流回路、32〜
34……監視用Log増幅器、42……メータ指
示用サンプルホールド回路、43……メータ切換
用エンコーダー、44……指示計、45……メー
タ切替用スイツチ、46……OG,NG判定用表
示器。
FIG. 1 is a block diagram showing an embodiment of the detection device according to the present invention, and FIGS. 2 and 3 are background noise and sound pressure inside a soundproof box, respectively, to explain the operation of the device according to FIG. FIG. 4, a diagram showing the levels, is a diagram showing the timing of data acquisition by the A/D converter in FIG. 1. 1...Measurement microphone, 5-7...Measurement filter, 8...Analog switch, 9-11...Measurement rectifier circuit, 12-14...Measurement Log amplifier, 18...A/D converter , 19...I/O port, 20...cpu, 21...monitoring microphone, 25
~27...Monitoring filter, 28...Analog switch, 29~31...Monitoring rectifier circuit, 32~
34... Log amplifier for monitoring, 42... Sample hold circuit for meter indication, 43... Encoder for meter switching, 44... Indicator, 45... Switch for meter switching, 46... Display for OG, NG judgment .
Claims (1)
音を検出する暗騒音検出手段と、前記暗騒音検出
手段の検出出力を所定値と比較する比較手段と、
前記異常音検出手段の検出手段により微小異常音
を測定する測定手段と、前記比較手段からの比較
結果により、測定手段の動作を制御する制御手段
とを備えたことを特徴とする微小異常音検出装置
。 abnormal sound detection means for detecting minute abnormal sounds, background noise detection means for detecting background noise, and comparison means for comparing the detection output of the background noise detection means with a predetermined value;
A minute abnormal sound detection system comprising: a measuring means for measuring a minute abnormal sound by the detecting means of the abnormal sound detecting means; and a control means for controlling the operation of the measuring means based on the comparison result from the comparing means. Device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14673885U JPS6255131U (en) | 1985-09-27 | 1985-09-27 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14673885U JPS6255131U (en) | 1985-09-27 | 1985-09-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6255131U true JPS6255131U (en) | 1987-04-06 |
Family
ID=31059480
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14673885U Pending JPS6255131U (en) | 1985-09-27 | 1985-09-27 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6255131U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019035714A (en) * | 2017-07-05 | 2019-03-07 | 上銀科技股▲フン▼有限公司 | Vibration detection method for machine tool |
-
1985
- 1985-09-27 JP JP14673885U patent/JPS6255131U/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019035714A (en) * | 2017-07-05 | 2019-03-07 | 上銀科技股▲フン▼有限公司 | Vibration detection method for machine tool |
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