Boots – shoes – and leggings
Patent
1995-09-25
1997-04-15
Voeltz, Emanuel T.
Boots, shoes, and leggings
36442601, 7386142, 303155, G06G 757
Patent
active
056216572
ABSTRACT:
Method and apparatus to enable a computer to determine which of two types of transducer systems in a fluid pressure communication conduit the computer is connected to. One system includes two pressure transducers attached to pressure taps in the conduit, the outputs of these being subtracted in the computer to obtain a pressure difference. The other system includes a differential pressure transducer to measure pressure difference between the two pressure taps. The computer makes a determination as to which of the two systems it is connected to by identifying a time when the airflow in the conduit is zero, and at that time comparing the output of the transducer which may be either one of two types with a voltage level corresponding to zero pressure for a pressure transducer, and a voltage level corresponding to zero flow for a differential pressure transducer.
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Vo Hien
Voeltz Emanuel T.
Westinghouse Air Brake Company
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