JPH026228U - - Google Patents
Info
- Publication number
- JPH026228U JPH026228U JP8491288U JP8491288U JPH026228U JP H026228 U JPH026228 U JP H026228U JP 8491288 U JP8491288 U JP 8491288U JP 8491288 U JP8491288 U JP 8491288U JP H026228 U JPH026228 U JP H026228U
- Authority
- JP
- Japan
- Prior art keywords
- wood
- measured
- needle
- attached
- longitudinal vibration
- 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
- 239000002023 wood Substances 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims 1
- 230000001133 acceleration Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Description
第1図は加速度センサーに針を取り付けた本考
案の斜視図。第2図は本考案の他の実施例を示し
加速度センサーを装着した構造体Gを被測定木材
に押し込み取着した状態の断面図。第3図は加速
度センサーを装備した構造体Gの被測定木材への
着脱装置の側面図。第4図は木材の縦振動よりヤ
ング率Eを求める概念図である。
1……センサー、1a……取着面、1b……鍔
部、2……針、3……台盤、4……カバー、5a
,5b……ビス、6a,6b……ハンド、7……
アーム、8……軸、9……信号線、A……被測定
木材、B……マグネスケール、C……ハンマー、
D……高速フーリエ級数変換器、F……演算器、
G……構造体、H……着脱装置。
Figure 1 is a perspective view of the present invention in which a needle is attached to an acceleration sensor. FIG. 2 is a sectional view showing another embodiment of the present invention, in which a structure G equipped with an acceleration sensor is pushed into a piece of wood to be measured. FIG. 3 is a side view of a device for attaching and detaching structure G equipped with an acceleration sensor to and from a timber to be measured. FIG. 4 is a conceptual diagram for determining Young's modulus E from longitudinal vibration of wood. 1... Sensor, 1a... Mounting surface, 1b... Flange, 2... Needle, 3... Base plate, 4... Cover, 5a
, 5b... screw, 6a, 6b... hand, 7...
Arm, 8... Axis, 9... Signal line, A... Wood to be measured, B... Magnescale, C... Hammer,
D... Fast Fourier series converter, F... Arithmetic unit,
G...Structure, H...Attachment/detaching device.
Claims (1)
2を突設し、該針2を前記被測定木材Aに差し込
んで取着するようにしたことを特徴とする木材の
縦振動測定用加速度センサー。 For longitudinal vibration measurement of wood, characterized in that a needle 2 is provided protruding from the center of the surface 1a side that is in close contact with the wood A to be measured, and the needle 2 is inserted into the wood A to be measured and attached. Accelerometer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8491288U JPH026228U (en) | 1988-06-27 | 1988-06-27 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8491288U JPH026228U (en) | 1988-06-27 | 1988-06-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH026228U true JPH026228U (en) | 1990-01-16 |
Family
ID=31309594
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8491288U Pending JPH026228U (en) | 1988-06-27 | 1988-06-27 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH026228U (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0618388A (en) * | 1992-07-03 | 1994-01-25 | Ichijiyou Komuten:Kk | Lumber classifying apparatus |
JP2002544481A (en) * | 1999-05-11 | 2002-12-24 | リン、フランク | Material inspection device |
JP2008261871A (en) * | 2001-10-12 | 2008-10-30 | Sekisui Chem Co Ltd | Method and equipment for inspecting reinforced concrete pipe |
JP2018029516A (en) * | 2016-08-24 | 2018-03-01 | 株式会社南星機械 | Head for work vehicles, work vehicle, and quality evaluation sensor unit for head attachment |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4918068U (en) * | 1972-05-19 | 1974-02-15 |
-
1988
- 1988-06-27 JP JP8491288U patent/JPH026228U/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4918068U (en) * | 1972-05-19 | 1974-02-15 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0618388A (en) * | 1992-07-03 | 1994-01-25 | Ichijiyou Komuten:Kk | Lumber classifying apparatus |
JP2002544481A (en) * | 1999-05-11 | 2002-12-24 | リン、フランク | Material inspection device |
JP2008261871A (en) * | 2001-10-12 | 2008-10-30 | Sekisui Chem Co Ltd | Method and equipment for inspecting reinforced concrete pipe |
JP4603599B2 (en) * | 2001-10-12 | 2010-12-22 | 積水化学工業株式会社 | Inspection equipment for reinforced concrete pipes |
JP2018029516A (en) * | 2016-08-24 | 2018-03-01 | 株式会社南星機械 | Head for work vehicles, work vehicle, and quality evaluation sensor unit for head attachment |