JPH0167593U - - Google Patents
Info
- Publication number
- JPH0167593U JPH0167593U JP1987162892U JP16289287U JPH0167593U JP H0167593 U JPH0167593 U JP H0167593U JP 1987162892 U JP1987162892 U JP 1987162892U JP 16289287 U JP16289287 U JP 16289287U JP H0167593 U JPH0167593 U JP H0167593U
- Authority
- JP
- Japan
- Prior art keywords
- vibration
- wall
- electrical signal
- detection device
- converts
- 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 description 9
- 230000001902 propagating effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 238000013459 approach Methods 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Description
第１図ないし第３図は本考案の一実施例を示す
ものであつて、第１図は壁裏検知装置の内部構造
を示す断面図、第２図は壁裏検知装置の外観を示
す平面図、第３図ａは壁裏検知装置を壁に押し当
てた状態を示す説明図、同図ｂは調節用つまみを
回して指針を中央０点位置に調節している状態を
示す説明図、同図ｃは壁裏検知装置が柱の在る位
置に近づいた状態を示す説明図、同図ｄは壁裏検
知装置が柱の真正面に位置した状態を示す説明図
、同図ｅは壁裏検知装置が柱の在る位置を通り過
ぎた状態を示す説明図である。
１は壁裏検知装置、２は検知ランプ（表示手段
）、３は周波数表示デイスプレイ、４は調節用つ
まみ、６は壁、９は振動送出針、１０は振動受取
針、１２，１５は圧電素子、１３は発信回路、１
６は受信回路、１７は演算回路、１８は振動発生
部、１９は振動受取部である。
Figures 1 to 3 show one embodiment of the present invention, in which Figure 1 is a cross-sectional view showing the internal structure of the back-wall detection device, and Figure 2 is a plan view showing the external appearance of the back-wall detection device. 3A is an explanatory diagram showing a state in which the wall back detection device is pressed against a wall, and FIG. 3B is an explanatory diagram showing a state in which the pointer is adjusted to the center 0 point position by turning the adjustment knob, Figure c is an explanatory diagram showing the state where the back wall detection device approaches the position of the pillar, Figure d is an explanatory diagram showing the state where the wall back detection device is located directly in front of the pillar, and Figure e is the diagram behind the wall. FIG. 3 is an explanatory diagram showing a state in which the detection device has passed a position where a pillar is located. 1 is a wall back detection device, 2 is a detection lamp (display means), 3 is a frequency display, 4 is an adjustment knob, 6 is a wall, 9 is a vibration sending needle, 10 is a vibration receiving needle, 12 and 15 are piezoelectric elements , 13 is a transmitting circuit, 1
6 is a receiving circuit, 17 is an arithmetic circuit, 18 is a vibration generator, and 19 is a vibration receiver.
Claims (1)
振動を壁に伝播させて振動波を送り出す振動発生
部と、上記壁や壁裏に在る物体によつて反射され
た上記振動波の反射波を受けて振動し、この振動
を電気信号に変換する振動受取部と、この振動受
取部から出力された電気信号に基づいて振動周波
数を算出する演算回路と、この演算回路にて算出
された振動周波数に基づいて壁裏の様子を操作者
に知らせ得る表示手段とを備えたことを特徴とす
る壁裏検知装置。 A vibration generator that vibrates in response to an electric signal from a transmitting circuit and transmits vibration waves by propagating the vibrations to the wall, and a reflected wave of the vibration waves that is reflected by the wall or objects behind the wall. a vibration receiver that receives the vibration and converts the vibration into an electrical signal; a calculation circuit that calculates the vibration frequency based on the electrical signal output from the vibration reception unit; and a vibration receiver that converts the vibration into an electrical signal. What is claimed is: 1. A back wall detection device comprising: a display means capable of informing an operator of the state behind the wall based on a frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16289287U JPH0516540Y2 (en) | 1987-10-23 | 1987-10-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16289287U JPH0516540Y2 (en) | 1987-10-23 | 1987-10-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0167593U true JPH0167593U (en) | 1989-05-01 |
| JPH0516540Y2 JPH0516540Y2 (en) | 1993-04-30 |
Family
ID=31447131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16289287U Expired - Lifetime JPH0516540Y2 (en) | 1987-10-23 | 1987-10-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0516540Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017156302A (en) * | 2016-03-04 | 2017-09-07 | 三菱重工業株式会社 | Buried object survey device, excavation system, and buried object survey method |
| JP2021127995A (en) * | 2020-02-10 | 2021-09-02 | トヨタホーム株式会社 | Position search method of long-sized member |
-
1987
- 1987-10-23 JP JP16289287U patent/JPH0516540Y2/ja not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017156302A (en) * | 2016-03-04 | 2017-09-07 | 三菱重工業株式会社 | Buried object survey device, excavation system, and buried object survey method |
| JP2021127995A (en) * | 2020-02-10 | 2021-09-02 | トヨタホーム株式会社 | Position search method of long-sized member |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0516540Y2 (en) | 1993-04-30 |
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