Sensing device

Details Sensing device Sensing device

1974-10-03

1976-08-24

Cline, William R.

Fluid handling

Pressure modulating relays or followers

Jet control type

73 376, G01B 1300

Patent

active

039760898

ABSTRACT:
There is provided a device for sensing small movements of an object from its desired orientation or position. The device uses for its operation a working fluid, such as air, and comprises means for creating a substantially closed curtain of working fluid adjacent the object being sensed. Means are also provided for sensing the pressure prevailing within said curtain of working fluid. The means for creating said curtain is so constructed that movements of said object from said desired orientation of the order of magnitude of 0.23 cms and less can be reliably detected.

REFERENCES:
patent: 2969670 (1961-01-01), Liebreich
patent: 3188856 (1965-06-01), Schneider
patent: 3340886 (1967-09-01), Jacobsen
patent: 3465570 (1969-09-01), MacLean et al.
patent: 3482433 (1969-12-01), Gladwyn
patent: 3490674 (1970-01-01), Ott, Jr. et al.
patent: 3523447 (1970-08-01), Sharp et al.

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