JPH0246902U - - Google Patents
Info
- Publication number
- JPH0246902U JPH0246902U JP12364588U JP12364588U JPH0246902U JP H0246902 U JPH0246902 U JP H0246902U JP 12364588 U JP12364588 U JP 12364588U JP 12364588 U JP12364588 U JP 12364588U JP H0246902 U JPH0246902 U JP H0246902U
- Authority
- JP
- Japan
- Prior art keywords
- signals
- sensor
- emiss
- videotape
- demodulated
- 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
- 239000000969 carrier Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
Description
第１図は本考案の一実施例の構成を示すブロツ
ク図である。
１，２……ＡＥセンサ、５，６……バンドパス
フイルタ、９，１０……ＦＭ変調回路、１１……
ミツクスアンプ、１２，１３……記録アンプ、１
４……ロータリトランスおよび回転ヘツド、１９
，２０……バンドパスフイルタ、２３，２４……
ＦＭ復調回路。
FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. 1, 2...AE sensor, 5, 6...Band pass filter, 9, 10...FM modulation circuit, 11...
Mix amplifier, 12, 13... Recording amplifier, 1
4...Rotary transformer and rotating head, 19
, 20...Band pass filter, 23, 24...
FM demodulation circuit.
Claims (1)
ｉｏｎ）センサにより検出されたＡＥ信号を、そ
れぞれ周波数の異なるＦＭキヤリアでＦＭ変調し
、混合増幅器により重畳して、ヘリカルスキヤン
磁気記録再生方式により、回転ヘツドでビデオテ
ープに記録、再生し、再生した複数個のＡＥ信号
を、それぞれ周波数帯域の異なるバンドパスフイ
ルタにより分離しＦＭ復調して、もとのＡＥ信号
を出力することを特徴とするＡＥ信号記録再生装
置。 Multiple AE (Acoustic Emiss)
ion) The AE signals detected by the sensor were FM-modulated using FM carriers with different frequencies, superimposed by a mixing amplifier, and recorded on a videotape using a helical scan magnetic recording and reproducing method, and then reproduced by a rotating head. An AE signal recording and reproducing apparatus characterized in that a plurality of AE signals are separated by bandpass filters having different frequency bands, FM demodulated, and the original AE signals are output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12364588U JPH0246902U (en) | 1988-09-21 | 1988-09-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12364588U JPH0246902U (en) | 1988-09-21 | 1988-09-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0246902U true JPH0246902U (en) | 1990-03-30 |
Family
ID=31372683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12364588U Pending JPH0246902U (en) | 1988-09-21 | 1988-09-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0246902U (en) |
-
1988
- 1988-09-21 JP JP12364588U patent/JPH0246902U/ja active Pending
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