Data logging device with separated data memory unit having internal power source and transducer interface unit for connection to external transducers
US4817049A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 1986 |
| Grant date | Mar 28, 1989 |
| Priority date | — |
| Expiry date | Apr 24, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C3/00
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A data logging device has a data memory unit (11) and a transducer interface unit (1). The data memory unit has an internal power source (12), an integrated circuit memory component (23) for storing data under the control of a microprocessor (18) in the memory unit, light emitting diodes (14, 21) for indicating the amount of data stored in the memory component and the power source state. A connector component (19) connects the memory component to receive data from the transducer interface unit. The transducer interface unit (1) has a plurality of ports (2) for connection of remote transducers and an analog to digital converter (5) for translating signals received from the ports into data signals which can be transferred to the memory component in the data memory unit through a connector component (9) connected to the connector component (19) of the data memory unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.