Data logger having a RAM that accepts electro-magnetically a sensor table and a sample table
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United States of America Patent
Stats
-
Mar 26, 1996
Grant Date -
N/A
app pub date -
Oct 19, 1994
filing date -
Apr 30, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A data logger includes a housing containing at least one sensor; programmable controller including a pre-programmed Erasable Programmable Read Only Memory (EPROM) containing control instructions and sensor drivers for all sensors; a Random Access Memory (RAM) providing data storage for storing data from each sensor; a power supply; and electromagnetic transfer device for accessing the logger and recovering data from the data storage from external to the casing; the RAM being adapted to accept, from external to the housing and via the electro-magnetic transfer device, instructions on the sensor drivers to evoke a desired sample regime; the logger also including a power up coil is provided within the housing to enable power from the external to the housing to be supplied during programming and during recovery of data.
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