Sonic ranging grade level controller

Details Sonic ranging grade level controller Sonic ranging grade level controller

1991-10-21

1994-11-15

Black, Thomas G.

Boots, shoes, and leggings

37348, 37382, A01B 63114

Patent

active

053654420

ABSTRACT:
An implement position control device including a central processing unit (6) coupled to an ultrasonic transducer (17) and receiver/amplifier (20) adapted to calculate the distance to a reference target (12 and a relatively more distant surface (9). Control pulses are initiated by the CPU (6) to manipulate a solenoid (25) by means of a valve driver (24) in response to the calculated distance measurements. An autotune task (26) causes a series of precise pulses to manipulate the solenoid, thereby permitting calculation of the transfer function (52) defining the relationship between pulse width and implement position.

REFERENCES:
patent: 3083327 (1963-03-01), Byloff
patent: 3703574 (1972-11-01), van den Berg
patent: 3736486 (1973-05-01), Gould
patent: 3851451 (1974-12-01), Agness et al.
patent: 4136508 (1979-01-01), Coleman et al.
patent: 4430846 (1984-02-01), Presley et al.
patent: 4437295 (1984-03-01), Rock
patent: 4561064 (1985-12-01), Bruggen et al.
patent: 4573124 (1986-02-01), Seiferling
patent: 4663712 (1987-05-01), Kishida
patent: 4733355 (1988-03-01), Davidson et al.
patent: 4750704 (1988-06-01), Brundage
patent: 4840263 (1989-06-01), Kato et al.
patent: 4873817 (1989-10-01), Harms
patent: 4891796 (1990-01-01), Sekine
patent: 4914593 (1990-04-01), Middleton et al.
patent: 4976149 (1990-12-01), Ichikawa et al.
patent: 5155983 (1992-10-01), Sheehan et al.
patent: 5170342 (1992-12-01), Nakamura et al.
patent: 5235511 (1993-08-01), Middleton et al.

Affiliated with

Also associated with

Rating

Sonic ranging grade level controller does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sonic ranging grade level controller, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sonic ranging grade level controller will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1102529