JP2005188966A5 - - Google Patents
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- JP2005188966A5 JP2005188966A5 JP2003427412A JP2003427412A JP2005188966A5 JP 2005188966 A5 JP2005188966 A5 JP 2005188966A5 JP 2003427412 A JP2003427412 A JP 2003427412A JP 2003427412 A JP2003427412 A JP 2003427412A JP 2005188966 A5 JP2005188966 A5 JP 2005188966A5
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Claims (6)
前記搬送面の所定の測定位置に主軸入射角θで超音波を照射する第１送信部と、
前記測定位置に前記主軸入射角θで超音波を照射する第２送信部と、
前記測定位置の法線上に配置され、前記測定位置で反射された前記第１送信部からの超音波と、前記測定位置で反射された前記第２送信部からの超音波とに基づいて前記搬送速度を検出する受信部と、を少なくとも具備し、
前記第１送信部が前記搬送方向に対して前記測定位置の法線を軸に前記搬送面内を回転してなされる角度を第１方位角φ１とし、前記第２送信部が前記搬送方向に対して前記測定位置の法線を軸に前記搬送面内を回転してなされる角度を第２方位角φ２とすると、
前記第１送信部と前記第２送信部とは、前記搬送方向に一致して前記入射角θで配置されている場合を除き、前記第１方位角φ１の絶対値と前記第２方位角φ２の絶対値とがφ１≠φ２の関係で配置されることを特徴とする搬送速度検出装置。 A transport speed detection device that detects a transport speed of a moving unit including a transport surface that transports in a predetermined transport direction ,
A first transmission unit that irradiates ultrasonic waves in the spindle entry elevation angle θ in a predetermined measurement position of the conveying surface,
A second transmission unit that irradiates the spindle inlet elevation angle ultrasonic waves θ in the measurement position,
Disposed on the normal line of the measurement positions, based on the ultrasonic wave from the ultrasonic and the second transmission unit is reflected by the measurement position from the first transmission unit is reflected by the measurement position At least anda reception unit for detecting the transport speed Te,
An angle formed by the first transmission unit rotating in the conveyance plane around the normal line of the measurement position with respect to the conveyance direction is defined as a first azimuth angle φ1, and the second transmission unit is arranged in the conveyance direction. On the other hand, when the angle formed by rotating the inside of the conveying surface about the normal line of the measurement position is the second azimuth angle φ2,
The absolute value of the first azimuth angle φ1 and the second azimuth angle φ2 except for the case where the first transmitter and the second transmitter are arranged at the incident angle θ in line with the transport direction. transport speed detecting device and the absolute value, characterized in Rukoto arranged in relation .phi.1 ≠ .phi.2 of.
２送信部は、前記搬送面の法線と前記搬送方向と直交する方向とを含む面内に配置されていることを特徴とする請求項１記載の搬送速度検出装置。 Said first transmission section is disposed in a plane including the normal line to the conveying direction before Symbol conveying surface, said first
2 transmission unit, the conveying speed detecting apparatus according to claim 1, characterized in that it is arranged in a plane including the direction perpendicular to the normal to the conveying direction of the conveying surface.
信部は前記主軸入射角θ±３０°の範囲内で超音波を照射し、前記第２送信部が前記測定位置に前記主軸入射角θで超音波を照射する場合、前記第１送信部は前記主軸入射角θ±３０°の範囲内で超音波を照射することを特徴とする請求項１乃至４のいずれか１つに記載の搬送速度検出装置。 When the first transmitter irradiates the measurement position with ultrasonic waves at the main axis incident angle θ, the second transmitter
The transmission unit emits ultrasonic waves within the range of the main axis incident angle θ ± 30 °, and when the second transmission unit irradiates ultrasonic waves at the measurement position with the main axis incident angle θ, the first transmission unit is transport speed detecting apparatus according to any one of claims 1 to 4, characterized that you ultrasonic waves within the main axis incident angle theta ± 30 °.
画像形成装置であって、
前記搬送面の所定の測定位置に主軸入射角θで超音波を照射する第１送信部と、
前記測定位置に前記主軸入射角θで超音波を照射する第２送信部と、
前記測定位置の法線上に配置され、前記測定位置で反射された前記第１送信部からの超音波と、前記測定位置で反射された前記第２送信部からの超音波とに基づいて前記搬送速度を検出する受信部と、を少なくとも具備し、
前記第１送信部が前記搬送方向に対して前記測定位置の法線を軸に前記搬送面内を回転してなされる角度を第１方位角φ１とし、前記第２送信部が前記搬送方向に対して前記測定位置の法線を軸に前記搬送面内を回転してなされる角度を第２方位角φ２とすると、
前記第１送信部と前記第２送信部とは、前記搬送方向に一致して前記入射角θで配置されている場合を除き、前記第１方位角φ１の絶対値と前記第２方位角φ２の絶対値とがφ１≠φ２の関係で配置されることを特徴とする画像形成装置。
Detecting the conveyance speed of a moving unit including a conveyance surface for conveying a recording medium on which an image is formed
An image forming apparatus,
A first transmitter that irradiates a predetermined measurement position on the transport surface with ultrasonic waves at a principal axis incident angle θ;
A second transmitter for irradiating the measurement position with ultrasonic waves at the main axis incident angle θ;
The conveyance based on the ultrasonic wave from the first transmission unit arranged on the normal line of the measurement position and reflected at the measurement position, and the ultrasonic wave from the second transmission unit reflected at the measurement position A receiving unit for detecting the speed, and
An angle formed by the first transmission unit rotating in the conveyance plane around the normal line of the measurement position with respect to the conveyance direction is defined as a first azimuth angle φ1, and the second transmission unit is arranged in the conveyance direction. On the other hand, when the angle formed by rotating the inside of the conveying surface about the normal line of the measurement position is the second azimuth angle φ2,
The absolute value of the first azimuth angle φ1 and the second azimuth angle φ2 except for the case where the first transmitter and the second transmitter are arranged at the incident angle θ in line with the transport direction. The image forming apparatus is characterized in that the absolute value of is arranged in a relationship of φ1 ≠ φ2 .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003427412A JP4509548B2 (en) | 2003-12-24 | 2003-12-24 | Conveyance speed detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003427412A JP4509548B2 (en) | 2003-12-24 | 2003-12-24 | Conveyance speed detector |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2005188966A JP2005188966A (en) | 2005-07-14 |
| JP2005188966A5 true JP2005188966A5 (en) | 2007-02-01 |
| JP4509548B2 JP4509548B2 (en) | 2010-07-21 |
Family
ID=34786696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2003427412A Expired - Fee Related JP4509548B2 (en) | 2003-12-24 | 2003-12-24 | Conveyance speed detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4509548B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009106237A (en) * | 2007-10-31 | 2009-05-21 | Mitsubishi Agricult Mach Co Ltd | Transplanter |
| JP6079739B2 (en) * | 2014-09-25 | 2017-02-15 | トヨタ自動車株式会社 | Measuring method of laser scanning speed |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03194470A (en) * | 1989-12-22 | 1991-08-26 | Yokogawa Medical Syst Ltd | Flow velocity measuring instrument |
| JPH0921870A (en) * | 1995-07-04 | 1997-01-21 | Toyota Motor Corp | Ground speed detecting device for vehicle |
| JP2002108031A (en) * | 2000-10-03 | 2002-04-10 | Fuji Xerox Co Ltd | Moving velocity fluctuation detector and image forming apparatus |
-
2003
- 2003-12-24 JP JP2003427412A patent/JP4509548B2/en not_active Expired - Fee Related
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