Tracking device with a coil driven actuator and a sensor coil to

Details Tracking device with a coil driven actuator and a sensor coil to Tracking device with a coil driven actuator and a sensor coil to

1998-09-23

2000-12-26

Tran, Thang V.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369 4432, 369 4435, G11B 709

Patent

active

061670057

ABSTRACT:
The invention relates to a tracking device in which a position of a coil driven actuator is determined using a sensor coil. A reference signal 12 having a determined voltage and frequency is fed to a driven coil. A position of the coil driven actuator is proportional to a distance between the driving coil and the sensor coil. The sensor coil produces an alternating voltage induced by an alternating magnetic field emitted by the driving coil. The alternating voltage is used to determine the position of the actuator.

REFERENCES:
patent: 4017858 (1977-04-01), Kuipers
patent: 4302830 (1981-11-01), Hamaoka et al.
patent: 4769803 (1988-09-01), Yamamiya
patent: 5228019 (1993-07-01), Yanagi
patent: 5764605 (1998-06-01), Zucker et al.
Patent Abstracts of Japan vol. 12, No. 129 (P-692) Apr. 21, 1988 & JP 62 252531A (Seiko) Nov. 4, 1987.
Patent Abstracts of Japan vol. 15, No. 268 (P-1224) Jul. 8, 1991 & JP 03 088132A (OKI).

Affiliated with

Also associated with

Rating

Tracking device with a coil driven actuator and a sensor coil to does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tracking device with a coil driven actuator and a sensor coil to, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tracking device with a coil driven actuator and a sensor coil to will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1002695