Browse Prior Art Database

Programmed Tester

IP.com Disclosure Number: IPCOM000095420D
Original Publication Date: 1964-Jan-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 34K

Publishing Venue

IBM

Related People

Crotty, AB: AUTHOR [+2]

Abstract

The tester automatically examines components. It enables either 100% testing of received items or performance of repetitive comparisons on units undergoing life tests. The tester can be programmed to compare any number of components of a sample being tested with corresponding standard components. It can record for each sample the identification of those components which are not within predetermined tolerance limits.

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Programmed Tester

The tester automatically examines components. It enables either 100% testing of received items or performance of repetitive comparisons on units undergoing life tests. The tester can be programmed to compare any number of components of a sample being tested with corresponding standard components. It can record for each sample the identification of those components which are not within predetermined tolerance limits.

A pair of program drums 1 and 2 is mounted for step-by-step rotation by program drive 3. Each drum step corresponds to a component to be tested. Drum 2 carries a card identifying a standard component against which the component under test is to be compared. At each drum position, the card on drum 2 is sensed. The reading is conducted to the standard component selector
4. This connects the desired standard of the group of standard components 5 to one input of comparison bridge 6.

Samples 7 which are to have their components tested are connected one by one to scanner switching unit 8. Switch 8 sequentially, electrically connects the components of sample 7 to the other input of bridge 6. Switch 8, simultaneously through an electrically interlocked circuit, indexes drums 1 and 2 to a position corresponding to the sample component under test, thus selecting the correct standard component. Switch 8 can be arranged to perform one test on each component of a stream of samples or to cycle repeatedly through the components of a group of sample...