JPH0363858U - - Google Patents
Info
- Publication number
- JPH0363858U JPH0363858U JP12573689U JP12573689U JPH0363858U JP H0363858 U JPH0363858 U JP H0363858U JP 12573689 U JP12573689 U JP 12573689U JP 12573689 U JP12573689 U JP 12573689U JP H0363858 U JPH0363858 U JP H0363858U
- Authority
- JP
- Japan
- Prior art keywords
- plate
- propagation time
- thickness
- rolling direction
- measurement result
- 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
- 239000000523 sample Substances 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 5
- 238000005259 measurement Methods 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims 3
- 238000011156 evaluation Methods 0.000 claims 1
- 230000000644 propagated effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- 238000007405 data analysis Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Description
第１図は本考案装置の模式的側面図、第２図は
上部探触子保持部材の模式的平面図、第３図は下
部探触子保持部材の模式的平面図、第４図は本考
案装置のブロツク図、第５図は本考案装置におい
て行なわれる主要な信号処理過程を示すフロチヤ
ート、第６図は電磁超音波板波の周波数と板厚と
の積と、電磁超音波板波速度、その基準速度の速
度比との関係を示すグラフ、第７図は従来の装置
を用いた場合の電磁超音波板波の平均伝播時間の
計測値値との関係を示すグラフ、第８図は本考
案装置を用いた場合の電磁超音波板波の平均伝播
時間の計測値と値との関係を示すグラフ、第９
図は超音波板波の伝播時間の誤測定を説明するた
めの波形図である。
１１……圧延方向伝播板波探触子、１２……圧
延４５°方向伝播板波探触子、１３……圧延直交
方向伝播板波探触子、１４……横波電磁超音波送
信子、２４……横波電磁超音波受信子、９１，９
２，９３，９４……パルサ、４１，４２，４３，
４４……プリアンプ、６１，６２，６３，６４…
…時間測定部、７１，７２……データ解析部、６
１０，６２０，６３０……ゲート発生回路。
Fig. 1 is a schematic side view of the device of the present invention, Fig. 2 is a schematic plan view of the upper probe holding member, Fig. 3 is a schematic plan view of the lower probe holding member, and Fig. 4 is the main body. Figure 5 is a block diagram of the invented device, Figure 5 is a flowchart showing the main signal processing process carried out in the invented device, and Figure 6 shows the product of the frequency of the electromagnetic ultrasonic plate wave and the plate thickness, and the velocity of the electromagnetic ultrasonic plate wave. , a graph showing the relationship between the reference speed and the speed ratio, FIG. 7 is a graph showing the relationship with the measured value of the average propagation time of the electromagnetic ultrasonic plate wave when using a conventional device, and FIG. Graph showing the relationship between the measured values of the average propagation time of electromagnetic ultrasonic plate waves when using the device of the present invention, No. 9
The figure is a waveform diagram for explaining erroneous measurement of the propagation time of an ultrasonic plate wave. 11... Rolling direction propagation plate wave probe, 12... Rolling 45° direction propagation plate wave probe, 13... Rolling direction propagation plate wave probe, 14... Transverse wave electromagnetic ultrasound transmitter, 24 ...Transverse wave electromagnetic ultrasound receiver, 91,9
2,93,94...Parsa, 41,42,43,
44...Preamplifier, 61, 62, 63, 64...
...Time measurement section, 71, 72...Data analysis section, 6
10,620,630...Gate generation circuit.
Claims (1)
な方向及び圧延方向と夫々４５°，９０°で交叉
する方向の３方向にＳ０モードの超音波板波を一
定距離だけ伝播させてこれらを夫々受信し、その
各伝播時間を適長のゲート信号の終了後の受信波
形の位相に基づいて測定し、これらの測定値から
塑性歪み比の面内平均値、面内方位差を求めるべ
くなしてある深絞り性評価装置において、 前記金属薄板の板厚を測定する横波電磁超音波
探触子と、 該板厚の測定結果に基づいて前記ゲート信号の
長さを調節する手段と、 前記板厚の測定結果に基づいて前記伝播時間を
補正する手段と を具備することを特徴とする金属薄板の深絞り性
評価装置。[Claims for Utility Model Registration] S 0 mode ultrasonic plate waves are applied to a rolled metal thin plate in three directions: parallel to the rolling direction and directions intersecting the rolling direction at 45° and 90°, respectively. These are propagated over a certain distance and received, and each propagation time is measured based on the phase of the received waveform after the end of the gate signal of an appropriate length. From these measured values, the in-plane average value of the plastic strain ratio, A deep drawability evaluation device designed to determine the in-plane orientation difference includes a transverse electromagnetic ultrasonic probe for measuring the thickness of the thin metal plate, and a length of the gate signal based on the measurement result of the plate thickness. An apparatus for evaluating deep drawability of a thin metal sheet, comprising: means for adjusting the propagation time; and means for correcting the propagation time based on the measurement result of the sheet thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12573689U JPH0363858U (en) | 1989-10-27 | 1989-10-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12573689U JPH0363858U (en) | 1989-10-27 | 1989-10-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0363858U true JPH0363858U (en) | 1991-06-21 |
Family
ID=31673590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12573689U Pending JPH0363858U (en) | 1989-10-27 | 1989-10-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0363858U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5517374B1 (en) * | 2013-01-09 | 2014-06-11 | 株式会社Ｉｈｉ | Interface inspection method, interface inspection apparatus, and interface inspection program for composite structure |
-
1989
- 1989-10-27 JP JP12573689U patent/JPH0363858U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5517374B1 (en) * | 2013-01-09 | 2014-06-11 | 株式会社Ｉｈｉ | Interface inspection method, interface inspection apparatus, and interface inspection program for composite structure |
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