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Section 11. Glossary
540
Term: Flash
A type of memory media that does not require battery backup. Flash memory,
however, has a lifetime based on the number of writes to it. The more
frequently data are written, the shorter the life expectancy.
Term: FLOAT
Four-byte floating-point data type. Default CR3000 data type for Public or
Dim variables. Same format as IEEE4.
Term: FP2
Two-byte floating-point data type. Default CR3000 data type for stored data.
While IEEE four-byte floating point is used for variables and internal
calculations, FP2 is adequate for most stored data. FP2 provides three or four
significant digits of resolution, and requires half the memory as IEEE4.
Term: FTP
File Transfer Protocol. A TCP/IP application protocol.
Term: full-duplex
A serial communication protocol. Simultaneous bi-directional
communications. Communications between a CR3000 serial port and a PC
is typically full duplex.
Reading list: simplex
(p. 555),
duplex
(p. 307),
half duplex
(p. 541),
and full duplex
(p.
Term: frequency domain
Frequency domain describes data graphed on an X-Y plot with frequency as
the X axis. VSPECT
(p. 562)
vibrating wire data are in the frequency domain.
Term: frequency response
Sample rate is how often an instrument reports a result at its output;
frequency response is how well an instrument responds to fast fluctuations on
its input. By way of example, sampling a large gage thermocouple at 1 kHz
will give a high sample rate but does not ensure the measurement has a high
frequency response. A fine-wire thermocouple, which changes output quickly
with changes in temperature, is more likely to have a high frequency
response.
Содержание CR3000 Micrologger
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Страница 200: ...Section 7 Installation 200 FIGURE 42 Running Average Frequency Response FIGURE 43 Running Average Signal Attenuation ...
Страница 485: ...Section 8 Operation 485 8 11 2 Data Display FIGURE 110 Keyboard and Display Displaying Data ...
Страница 487: ...Section 8 Operation 487 FIGURE 112 CR1000KD Real Time Custom ...
Страница 488: ...Section 8 Operation 488 8 11 2 3 Final Storage Data FIGURE 113 Keyboard and Display Final Storage Data ...
Страница 489: ...Section 8 Operation 489 8 11 3 Run Stop Program FIGURE 114 Keyboard and Display Run Stop Program ...
Страница 491: ...Section 8 Operation 491 FIGURE 116 Keyboard and Display File Edit ...
Страница 495: ...Section 8 Operation 495 Low power standby whenever possible Low power bus sets bus and modules to low power ...
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Страница 564: ...Section 11 Glossary 564 FIGURE 126 Relationships of Accuracy Precision and Resolution ...
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