Electricity: measuring and testing – Electrical speed measuring – Including speed-related frequency generator
Patent
1997-09-11
1999-07-27
Strecker, Gerard
Electricity: measuring and testing
Electrical speed measuring
Including speed-related frequency generator
174 523, 3242072, G01P 102, G01P 344, H05K 506, G01R 3300
Patent
active
059296291
ABSTRACT:
The invention provides a high-accuracy and high-reliability magnetic sensor which can be produced with a high production yield at a low cost. The magnetic sensor includes: a main sensor unit including: an intermediate part in the form of a short rectangular prism serving as a fitting part; a seating formed on one end face of the intermediate part such that the seating has a step shape and such that the exterior circumferential surface of the seating serves as a fitting-in portion; a main part disposed at a right angle on the principal surface of the seating, the main part including: a sensor element disposed on the end of the main part; a permanent magnet disposed adjacent to the sensor element; and an electronic component; and a connector extending from the intermediate part; and a case including: a sleeve in the form of a cylinder with a closed end and an open end, the sleeve having a receiving portion formed on the open end, the sleeve having a sealed space serving as a space in which the main part is placed; and a holding part extending from the sleeve and including a receiving part and a separation stopper; wherein the magnetic sensor is characterized in that a liquid reservoir space is formed between the fitting-in portion and the receiving portion along the circumference, and the liquid reservoir space is filled with liquid packing.
REFERENCES:
patent: 5381089 (1995-01-01), Dickmeyer et al.
patent: 5627464 (1997-05-01), Shinjo et al.
Fukui Wataru
Hayashi Noriaki
Hiraoka Naoki
Ohashi Yutaka
Sakanoue Hiroshi
Mitsubishi Denki & Kabushiki Kaisha
Strecker Gerard
LandOfFree
Magnetic sensor having a liquid seal does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Magnetic sensor having a liquid seal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic sensor having a liquid seal will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-882924