Computerized ultrasonic inspection system for ceramic pre-combustion chambers of automotive diesel engines

Book · Tue Jan 01 04:00:00 EST 1985

OSTI ID:5687518

Asai, K; Takeuchi, A; Ueda, N; Kawamoto, J

A computerized ultrasonic inspection system was developed to inspect small flaws in ceramic pre-combustion chambers of diesel engines for evaluation of their quality. The system comprises a digitalized multi-channel ultrasonic flaw detector, an immersion test scanner, and a multiple transducers and performs the acquisition of inspection data. The scanner is equipped with two sets of scanner arms and a turntable to rotate a ceramic chamber. The five transducers generate ultrasonic pulses and receive flaws echoes from the critical portions of a ceramic chamber. Incremental movements of the transducers and operation of the turntable make a precise search of flaws for the whole chamber, and the locations and the echoes amplitudes of detected flaws are displayed on a CRT. In its application to inspection of ceramic precombustion chambers, this computerized inspection system was used and proved to be a useful tool to evaluate flaws in those chambers.

• OSTI ID: 5687518
• Report Number(s): TP-850534
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330102* -- Internal Combustion Engines-- Diesel
ACOUSTIC TESTING
AUTOMOBILES
CERAMICS
COMBUSTION CHAMBERS
COMPUTERIZED CONTROL SYSTEMS
COMPUTERS
CONTROL SYSTEMS
DATA ACQUISITION SYSTEMS
DEFECTS
DIESEL ENGINES
ELECTRONIC CIRCUITS
ENGINES
HEAT ENGINES
INSPECTION
INTERNAL COMBUSTION ENGINES
MATERIALS TESTING
MICROELECTRONIC CIRCUITS
MICROPROCESSORS
NONDESTRUCTIVE TESTING
PULSES
TESTING
TRANSDUCERS
ULTRASONIC TESTING
VEHICLES