INSTRUMENTS FOR AUTOMOTIVE RESEARCH

Format:

Other

Author/Creator:

Warner, John A. C., author.

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1925

Summary:

Due to tremendous production schedules and rapid advancement, the automotive industry is characterized by its effort to learn the answers to engineering research-problems with utmost dispatch, but the procedure is not without attendant risks. Costly errors have resulted from experimental work improperly planned and executed, from conclusions too quickly drawn and from unjustified interpretation of observed indications. Cut-and-try procedure is resorted to in many instances after hastily applied research methods have failed and, often, the apparently longer course involving systematic research would, in fact, have been fruitful of more prompt and more satisfactory results at a lower net cost.As originally presented, the paper was accompanied by a demonstration of instruments and apparatus especially adapted to automotive-research problems. These exhibits includedBureau of StandardsApparatus for measuring fuel flow by volumeCarbon pile telemeterClearance volume indicatorDecelerometer made by the American Instrument CompanyEngine indicator made by the American Instrument CompanyPedal pressure indicatorVibrometerCambridge Instrument CompanyElectrical apparatus for exhaust-gas analysisEngineering Division of the Air ServiceElverson oscilloscopeFarnboro electric engine indicatorInternational Motor CompanyRiding-qualities accelerometerLubricating Appliance Mfg. CompanyApparatus for determining viscosity and dilutionRotostat Instrument CompanyStroboscopic apparatusUniversity of MichiganApparatus for measuring fuel flow by weightGas-analysis apparatusLoudness evaluator developed for the TimkenRoller Bearing CompanyModified engine indicatorWaukesha Motor CompanyPhoneloscope for the study of sound, made by H. G. DorseyRegarding instrument design and construction, reference is made to the comprehensive but concise rules of Clerk Maxwell, the well-known English scientist, and he is quoted as saying that the fundamental principle is that the instrument should be adapted to the use that is to be made of it and, in particular, that the parts intended to be fixed should not be liable to become displaced; that those which ought to be movable should not stick fast; that parts which have to be observed should not be covered up or kept in the dark; and that pieces intended to have a definite form should not be disfigured by warping, straining, or wearing.After discussing the subjects of instrumental accuracy, simultaneous indications or records and types of instrument and of apparatus adapted to use in industrial laboratories, the author considers cost factors. Brief descriptions of motion analysis, motion-picture and stroboscopic methods and the study of noise are presented also, and types of devices used in these studies are specified

Notes:

Vendor supplied data

Publisher Number:

250023

Access Restriction:

Restricted for use by site license