Sensor device with fluid introduction holes

Details Sensor device with fluid introduction holes Sensor device with fluid introduction holes

1998-12-04

2000-04-11

Larkin, Daniel S.

Measuring and testing

Liquid analysis or analysis of the suspension of solids in a...

Viscosity

73 5427, 73 5441, 310324, 310338, G01L 116, G01N 1110

Patent

active

060475900

ABSTRACT:
A sensor device includes a base body 12 having a vibrating portion 14, a piezoelectric element 20 fixed onto one surface of the vibrating portion 14 and having a piezoelectric film 22 and a pair of electrodes 24a, 24b which are in contact with the piezoelectric film 22, a space 16 that allows a fluid to lead to the other surface of the vibrating portion 14, and introduction holes 18 that communicate with the space 16, and the sensor device 10 is in a longitudinal shape. A recess 15 which contains at least an opening end of the introduction hole 18 on the surface side of the sensor device 10 in its region and extends up to the rear end portion 10' of the sensor device is formed on the surface of the sensor device 10 by a protrusion 13 disposed on the surface of said sensor device so as to extend substantially continuously from the periphery of the introduction holes 18 to the rear end portion 10' of said sensor device.

REFERENCES:
patent: 4721874 (1988-01-01), Emmert
patent: 4741200 (1988-05-01), Hammerle
patent: 4961345 (1990-10-01), Tsuruoka et al.
patent: 5334303 (1994-08-01), Muramatsu et al.
patent: 5374521 (1994-12-01), Kipling et al.
patent: 5485744 (1996-01-01), Akutagawa et al.
patent: 5545461 (1996-08-01), Takeuchi et al.
patent: 5600197 (1997-02-01), Takeuchi et al.
patent: 5698931 (1997-12-01), Shibata et al.
patent: 5889351 (1999-03-01), Okumura et al.
Patent Abstracts of Japan, vol. 006, No. 008 (P-098), Jan. 1982.
Electrochemical Acta, vol. 41, No. 10, Jun. 1996, pp. 1721-1726, "Determination of the State-of-Charge of a Lead-Acid Battery Using Impedance of the Quartz Crystal Oscillator", by John M. Charlesworth.

Affiliated with

Also associated with

Rating

Sensor device with fluid introduction holes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sensor device with fluid introduction holes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sensor device with fluid introduction holes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1168788