JPH041437U - - Google Patents
Info
- Publication number
- JPH041437U JPH041437U JP4125290U JP4125290U JPH041437U JP H041437 U JPH041437 U JP H041437U JP 4125290 U JP4125290 U JP 4125290U JP 4125290 U JP4125290 U JP 4125290U JP H041437 U JPH041437 U JP H041437U
- Authority
- JP
- Japan
- Prior art keywords
- section
- foreign object
- detection device
- detected
- reflected wave
- 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 7
- 239000000463 material Substances 0.000 claims description 5
- 239000002344 surface layer Substances 0.000 claims 1
- 239000013077 target material Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Geophysics And Detection Of Objects (AREA)
Description
第１図は本考案に係る異物検出装置の構成を示
すブロツク図、第２図は異物検出装置からの送信
波の信号波形と異物による反射波の信号波形とを
示す波形図、第３図は含水率と反射波の電圧成分
との関係を異物の種類別に示すグラフである。
１……被検査材、３……マイクロ波送受信器、
４……増幅器、５……整流器、６……比較器、７
……設定器。
FIG. 1 is a block diagram showing the configuration of the foreign object detection device according to the present invention, FIG. 2 is a waveform diagram showing the signal waveform of the transmitted wave from the foreign object detection device and the signal waveform of the wave reflected by the foreign object, and FIG. It is a graph showing the relationship between water content and voltage component of reflected waves for each type of foreign matter. 1... Material to be inspected, 3... Microwave transceiver,
4...Amplifier, 5...Rectifier, 6...Comparator, 7
...Setting device.
Claims (1)
装置において、 前記被検出材へマイクロ波を送信すると共に該
マイクロ波の反射波を受信する手段と、 受信された前記反射波のレベルと所定の閾値と
を比較する手段と を備え、該手段における比較結果に基づいて被検
出材中に異物が存在していることを検出すべくな
してあることを特徴とする異物検出装置。 ２ 断面円形の被検出材中の異物の存在を検出す
る異物検出装置において、 前記被検出材の表層部に接線方向から対向して
配されるべきアンテナと、 該アンテナを介してマイクロ波を送信すると共
に該マイクロ波の反射波を受信する送受信部と、 該送受信部に受信された反射波を増幅する増幅
部と、 該増幅部で増幅された反射波を整流する整流部
と、 所定の閾値を決定する設定部と、 前記整流部の出力と前記閾値とを比較する比較
部と、 を具備することを特徴とする異物検出装置。[Claims for Utility Model Registration] 1. A foreign object detection device for detecting the presence of a foreign object in a material to be detected, comprising means for transmitting microwaves to the material to be detected and receiving reflected waves of the microwaves; and a means for comparing the level of the reflected wave with a predetermined threshold value, and is configured to detect the presence of foreign matter in the detection target material based on the comparison result of the means. foreign object detection device. 2. A foreign object detection device that detects the presence of a foreign object in a material to be detected having a circular cross section, comprising: an antenna to be disposed tangentially facing the surface layer of the material to be detected; and a microwave being transmitted through the antenna. a transmitting/receiving section that receives the reflected wave of the microwave; an amplifying section that amplifies the reflected wave received by the transmitting/receiving section; a rectifying section that rectifies the reflected wave amplified by the amplifying section; and a predetermined threshold value. A foreign object detection device comprising: a setting section that determines the rectification section; and a comparison section that compares the output of the rectification section with the threshold value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4125290U JPH041437U (en) | 1990-04-17 | 1990-04-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4125290U JPH041437U (en) | 1990-04-17 | 1990-04-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH041437U true JPH041437U (en) | 1992-01-08 |
Family
ID=31551763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4125290U Pending JPH041437U (en) | 1990-04-17 | 1990-04-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH041437U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002233350A (en) * | 2001-01-09 | 2002-08-20 | Hauni Maschinenbau Ag | Method for inspecting produced good |
| JP2016109392A (en) * | 2014-12-10 | 2016-06-20 | 株式会社デンソー | Heat transport system |
| WO2016103477A1 (en) * | 2014-12-26 | 2016-06-30 | 日本たばこ産業株式会社 | Filter inspection apparatus |
-
1990
- 1990-04-17 JP JP4125290U patent/JPH041437U/ja active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002233350A (en) * | 2001-01-09 | 2002-08-20 | Hauni Maschinenbau Ag | Method for inspecting produced good |
| JP2016109392A (en) * | 2014-12-10 | 2016-06-20 | 株式会社デンソー | Heat transport system |
| WO2016103477A1 (en) * | 2014-12-26 | 2016-06-30 | 日本たばこ産業株式会社 | Filter inspection apparatus |
| JPWO2016103477A1 (en) * | 2014-12-26 | 2017-05-25 | 日本たばこ産業株式会社 | Filter inspection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE3585527D1 (en) | AUTOMATIC CONTROL WITH USE OF PROXIMITY SENSORS. | |
| WO2005045359A3 (en) | Atmospheric turbulence hazard detector | |
| JPH041437U (en) | ||
| EP0939311A3 (en) | Infrared-rays detector | |
| JP2001043327A5 (en) | ||
| JPS6412284A (en) | Ultrasonic range finder | |
| JPS5764126A (en) | Oscillation detecting apparatus | |
| JPH0212625Y2 (en) | ||
| JPS5672317A (en) | Detector for knocking oscillation | |
| JPH0510403Y2 (en) | ||
| JPS62162680U (en) | ||
| JPS55131787A (en) | Ultrasonic distance measuring system | |
| JPS6180471U (en) | ||
| JPS61167513U (en) | ||
| JPS6031076A (en) | Ultrasonic detector | |
| JPH025088U (en) | ||
| JPS6181234U (en) | ||
| JPH0351390U (en) | ||
| JPS6227682A (en) | microwave distance measuring device | |
| JPS56108982A (en) | Receiver for pair-pulse distance-measurement signal | |
| JPH0293782U (en) | ||
| JPH0348946U (en) | ||
| JPS6321882U (en) | ||
| JPS5855776A (en) | Object detector | |
| JPS636371U (en) |