FIELD: physics.
SUBSTANCE: sheets processing device detects the sheet of paper based on changes in ultrasonic waves. Sheets processing device includes a supporting member, which supports the sheet. In the supporting member a through hole is formed. Sheet processing device also includes a transmission module, which transmits the ultrasonic waves from the transmission surface; reflecting module, which reflects the transmitted from the transmitting module and passed through the through hole ultrasonic waves; and the receiving module, which on the receiving surface receives reflected by the reflecting module ultrasonic waves. Receiving surface is facing down, and the transmitting surface is parallel to the vertical direction or is facing down; or the transmitting surface is facing down, and the receiving surface is parallel to the vertical direction or is facing down.
EFFECT: invention is intended for the sheet detection with high accuracy using the ultrasonic waves.
14 cl, 13 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
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RU2530276C2 |
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|
RU2622334C2 |
