| 摘要 |
A self-contained, light-weight, programmable data-acquisition system is constructed largely from readily available personal computer (PC) subassemblies. It operates as a paperless recorder and event recorder, storing data from a plurality of analog inputs to a fixed disk for later retrieval by a PC. It also operates as a PC peripheral device permitting real-time viewing and analysis, as well as recording, of a plurality of analog inputs. As an event recorder it can store a fixed amount of data preceding the triggering event, which can be in the form of either a contact closure or the value of an analog input exceeding a preset minimum or maximum value. Configuration is performed at the PC and subsequently downloaded to the recorder where it is stored in non-volatile memory. Converted and recorded data display at the host PC is both graphical and numerical form. Channel data displayed at the host PC is uniquely identified in that each channel's data is uniquely colored.
|
