Conveying device and conveying method
AssigneeHitachi High-Tech Corporation
InventorsYuki MATSUDA, Takeshi TAMAKOSHI, Takeshi MATSUKA
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Abstract
Provided are a conveying device and a conveying method capable of detecting a speed of a conveyed object more accurately than that in the related art. The conveying device includes a coil 107 that includes a core 105 and a winding 106, a current detection unit 109 that detects a current flowing through the winding 106 of the coil 107, a drive unit 108 that supplies a voltage to the coil 107, and a control unit 110. The control unit 110 estimates a conveying speed of a holder 102 provided with a magnetic body 103 based on the current flowing through one winding 106 due to an influence of electromagnetic induction.
Claims14
A conveying device comprising:
- an electromagnet including a core and a winding;
- a detection unit configured to detect a current flowing through the winding of the electromagnet;
- a drive unit configured to supply a voltage to the electromagnet;
- and
- a control unit, wherein
- the control unit estimates a conveying speed of a conveyance container provided with a magnetic body based on the current flowing through one winding due to an influence of electromagnetic induction.
A conveying method of a conveyance container having a magnetic body, comprising:
- estimating a conveyance speed of the conveyance container based on a current flowing through a winding of an electromagnet including one core and the winding due to an influence of electromagnetic induction.
Dependencies are inferred from the claim text.