A high-resolution pickup

A high-resolution, pickup technology, applied to sensors, electrical components, etc., can solve problems such as inability to accurately restore sound, sound distortion, and aggravate the amplitude of distortion, avoiding vibration interference, low contact pressure, and low friction. Effect

Active Publication Date: 2021-10-19
深圳市微语信息技术开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the above-mentioned existing sound reproduction methods, the stylus is in contact with the vinyl record, and as the stylus and the record wear, the sound resolution and texture will decrease, resulting in sound distortion; at the same time, the vibration noise of the stylus and the record itself is further aggravated The magnitude of this distortion is exceeded, making the sound impossible to be accurately restored.

Method used

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Embodiment Construction

[0027] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, and the implementation scope of the present invention is not limited thereto.

[0028] Such as Figure 1 to Figure 7 As shown, the high-resolution pickup described in this embodiment is suitable for playing vinyl record 200. The vinyl record 200 is engraved with a spiral line sound groove, and the section of the sound groove is U-shaped, and the bottom of the sound groove There are grains for recording sound; the surface of the vinyl record 200 is coated with an oleophobic polytetrafluoroethylene coating, so that the magneto-rheological fluid 10 cannot adhere to the surface of the sound groove of the vinyl record 200, and the pickup include:

[0029] The bottom plate 1, the first seat body 2 fixed on the top of the bottom plate 1, the second seat body 3 hinged on the first seat body 2, the rotation drive mechanism 4 arranged between th...

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Abstract

The invention discloses a high-resolution sound pickup, which comprises a bottom plate, a first seat body, a second seat body, a rotary drive mechanism, a radial drive mechanism, an ultrasonic pickup head and a signal processing unit; the first seat body is provided with a A circular groove for magnetorheological fluid; the second base body is provided with a circular groove for disc installation; the disc installation circular groove and the accommodation circular groove are coaxial; the rotary drive mechanism is used to drive the ultrasonic pickup head to rotate in a circumferential direction; It is connected to the output end of the drive mechanism and the rotary drive mechanism, and is used to drive the ultrasonic pickup head to move radially; the ultrasonic pickup head is used to generate a vertical upward magnetic field, so that the magnetorheological fluid forms a conical magnetorheological fluid The stylus is used to send out ultrasonic signals and receive ultrasonic reflection signals, and feed back the received ultrasonic reflection signals to the signal processing unit; the invention avoids vibration interference in the sound pickup process, improves the reading accuracy of sound information, and plays sound quality Better, it will help the sound to be accurately restored.

Description

technical field [0001] The invention relates to the field of sound pickups, in particular to a high-resolution sound pickup. Background technique [0002] At present, vinyl records record the sound by recording the vibration wave pattern of the sound on the surface of the vinyl record in the form of a vortex line sound groove; The stylus with matching shape is clamped in the sound groove, the cross-section shape of the sound groove is V-shaped, and then the vinyl record is rotated at a fixed speed, the uneven plane on the wall of the sound groove drives the stylus in contact with it to vibrate, using The magnet or coil connected to the stylus cuts the magnetic induction line in the phono head to generate an induced current that changes with the vibration of the stylus, and the sound signal is obtained by amplifying the obtained induced current. [0003] In the above-mentioned existing sound reproduction methods, the stylus is in contact with the vinyl record, and as the sty...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R9/12
CPCH04R9/12
Inventor 李梦思
Owner 深圳市微语信息技术开发有限公司
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