Glossary
- Updated2023-02-21
- 2 minute(s) read
Glossary
Prefixes
| Symbol | Prefix | Value |
|---|---|---|
| p | pico | 10 -12 |
| n | nano | 10 -9 |
| µ | micro | 10 -6 |
| m | milli | 10 -3 |
| k | kilo | 10 3 |
| M | mega | 10 6 |
| G | giga | 10 9 |
| T | tera | 10 12 |
Numbers/Symbols
| nV | nanovolts | 10-9 volts |
| µV | microvolts | 10-6 volts |
| µΩ | microohms | 10-6 ohms |
| mΩ | milliohms | 10-3 ohms |
| MΩ | megaohms | 106 ohms |
| pA | picoamps | 10-12 amperes |
| nA | nanoamps | 10-9 amperes |
| µA | microamps | 10-6 amperes |
| mA | milliamps | 10-3 amperes |
A | |
| gloss term | gloss definition |
B | |
C | |
D | |
E | |
F | |
G | |
H | |
| Homogenous Trigger | A synchronized trigger in a synchronized session. All sessions react to a homogenous trigger at the same time. Refer to Homogenous and Heterogenous Triggers for more information on the conditions that make a trigger homogenous. |
| Heterogenous Trigger | A trigger that does not fulfill any of the conditions for a homogenous trigger. Refer to Homogenous and Heterogenous Triggers for more information on the conditions that make a trigger heterogenous. |
I | |
J | |
K | |
L | |
M | |
N | |
| None Trigger | An unconfigured—but TClk-supported—trigger. When you do not configure a supported trigger, the trigger is referred to as None. |
O | |
P | |
Q | |
R | |
| Reference Clock | The clock to which a device phase locks another, usually faster, clock. A common source for the Reference Clock is the 10 MHz oscillator signal on the PXI backplane. |
S | |
| Sample Clock | The clock that triggers a device to begin the production of a sample. |
| Sample Timebase Clock | The clock from which the Sample Clock is derived by dividing down or by decimation. |
| Session | A software concept for communicating or interacting with a particular physical instrument or a subset of a physical instrument. |
| Sync Pulse | A single pulse signal that is used to synchronize Trigger Clock (TClk) signals on different devices. The Sync Pulse measures misalignment between TClks on different devices. |
| Sync Pulse Clock | A clock, usually 10 MHz (on PXI and PCI devices), used to synchronize TClk signals on different devices. The Sync Pulse Clock is typically a Reference Clock. |
T | |
| Trigger Clock (TClk) | A periodic signal generated by each device from the device's sample clock or sample clock timebase, used to synchronize triggers in a TClk session or sessions. TClk VIs and functions can synchronize TClk signals on different devices. |
| Timebase | The reference signals for controlling the basic accuracy of time-based or frequency-based measurements. For instruments, timebase refers to the accuracy of the internal clock. |
| Trigger Maser Session (TMS) | A session that controls homogenous trigger firing in other sessions. |
U | |
V | |
W | |
X | |
Y | |
Z | |