G - Physics
01
F
340/142, 349/39,
G01F 1/075 (2006.01) A01C 7/10 (2006.01) H02K 35/06 (2006.01)
Patent
CA 1081822
SEED SENSOR Abstract of the Disclosure A seed sensor for sensing seeds flowing along a path is provided with an electromagnetic transducer having a movable diaphragm. An arm is secured to a generally peripheral portion of the diaphragm and extends into the seed flow path to be struck at random by the seeds. The arm has a portion operatively engageable with a mid portion of the diaphragm and functions as a mechanical amplifier to actuate the diaphragm when struck by the seeds for producing usable output signals.
258832
Dickey-John Corporation
Smart & Biggar
LandOfFree
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