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Ultrasonic motor locating device

An ultrasonic motor and positioning device technology, applied in the direction of electromechanical devices, generators/motors, electrical components, etc., can solve the problems of position positioning and step error accumulation, achieve small effective output torque, improve adaptability, and facilitate installation. Effect

Inactive Publication Date: 2009-06-03
SICHUAN CLIMB ELEVATOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem of position positioning and step error accumulation in the position positioning control of ultrasonic motors, the present invention provides an ultrasonic motor positioning device with non-contact pulse type, which can perform position positioning and eliminate step accumulation errors

Method used

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  • Ultrasonic motor locating device
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Examples

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Embodiment Construction

[0031] figure 1 Among them, an ultrasonic motor positioning device includes a magnetic encoder as a sensor, a receiving processor, and an ultrasonic motor 1. The magnetic encoder includes a positioning disk 4 and a magnetic strip 3, and one side of the positioning disk 4 is provided with an inlaid magnetic strip The magnetic stripe positioning slot 3, the magnetic stripe 3 is fixedly arranged in the magnetic stripe positioning slot; the receiving processor includes a Hall plate 2 and a drive processing circuit; the housing of the ultrasonic motor 1 is provided with a Hall plate mounting and positioning groove 13, and The plate 2 is embedded in the Hall plate installation and positioning slot 13; the magnetic encoder is fixedly arranged on the ultrasonic motor shaft 5, and the side of the positioning disc 4 with the magnetic stripe is arranged in parallel with the Hall plate and has a gap. The sheet 2 is arranged corresponding to the magnetic strip on the positioning disc 4. The ...

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Abstract

The invention relates to an ultrasound wave motor positioning apparatus, which comprises magnetic coder as sensor, receiving processor and ultrasound motor. The magnetic coder comprises positioning disk and magnetic tape that are distributed on the positioning disk. The receiving processor comprises Hell piece and driving processing circuit. The Hell piece is embedded in the ultrasound motor shell, the magnetic coder is fixed on the ultrasound motor axial and parallel with the Hell piece and leaves space. The invention discloses a multi-layer film structure surface acoustic wave device with LiNbO3 / ZnO / diamond multi-layer film structure and method for making same. The multi-layer film structure surface acoustic wave devices comprises CVD diamond film, LiNbO3 film and nanometer ZnO middle layer with high C axial preferred orientation between the CVD diamond film and LiNbO3 film. The inventive method comprises steps of: sputtering nanometer ZnO film with high C axial preferred orientation on the surface of CVD diamond film; sputtering LiNbO3 film of high C axial preferred orientation on the surface of ZnO film. The invention has the advantages of getting good LiNbO3 nanometer of high C axial preferred orientation..

Description

Technical field [0001] The invention belongs to the technical field of automatic control detection, and specifically relates to an ultrasonic motor positioning device that requires accurate position positioning and zero stepping error. Background technique [0002] Ultrasonic motor is a new type of piezoelectric actuator that uses the principle of inverse piezoelectric effect. Generally, it is controlled by driving voltage amplitude, driving frequency and phase difference as control variables. In view of the current status of ultrasonic motor technology research, the accurate mathematical model of ultrasonic motor has not been determined, and the ultrasonic motor has strong nonlinear characteristics, it is difficult to establish an accurate ultrasonic motor control theory model. Therefore, searching for a reasonable control method of the ultrasonic motor, especially for the control method of the ultrasonic motor used for position positioning and stepping function, is an important...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02N2/14H02K29/08
Inventor 赵先锋文贵印张志铭施军丽
Owner SICHUAN CLIMB ELEVATOR
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