Scanning apparatus and method

Details Scanning apparatus and method Scanning apparatus and method

1987-01-14

1988-11-29

Chapman, John

Measuring and testing

Vibration

By mechanical waves

12866010, 73633, G01N 2900

Patent

active

047872470

ABSTRACT:
A scanning apparatus and method for scanning an object including a frame, a transducer for obtaining information from an object and a motor oscillating the transducer. The motor comprises a spring/solenoid combination driven at the resonant frequency of the spring/motor system. The actual displacement of the transducer is measured and compared to a desired displacement to provide a control signal to the motor. The scanning apparatus is at least partially enclosed by a housing containing a heat transfer fluid for damping the resonant vibration of the apparatus.

REFERENCES:
patent: 4317370 (1982-03-01), Glenn
patent: 4462255 (1984-07-01), Guess et al.
patent: 4515017 (1985-05-01), McConaghy
patent: 4632501 (1986-12-01), Glynn
patent: 4649925 (1987-03-01), Dow et al.
patent: 4682498 (1987-07-01), Kreiskorte

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