Environmental measuring and recording apparatus

Details Environmental measuring and recording apparatus Environmental measuring and recording apparatus

1982-07-26

1986-06-03

Ruggiero, Joseph

Boots, shoes, and leggings

73154, 364422, 364557, 364558, G06F 1520, E21B 4706

Patent

active

045933707

ABSTRACT:
An environmental measuring and recording apparatus includes a pressure transducer for measuring of pressure conditions in an oil reservoir. A temperature transducer is used to measure the temperature to which the pressure transducer is subject. The measured temperature is used to compensate the pressure transducer and a resulting compensated signal is digitized and stored in a memory unit. Because of the extreme environmental conditions in which the electronic apparatus is operating the memory unit has the capabilities of periodically being refreshed and to retain data after the removal of power.

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patent: 4292676 (1981-09-01), Henig
patent: 4444055 (1984-04-01), Balkanli

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