D.E.V.I.C.E. is an encyclopedia of terms used by manufacturers of test and measurement equipment. T&M Atlantic created this service to better explain the functionality of instruments it offers, and to highlight the latest developments in the world of measurement equipment. We are using such tools as animation to bring words and pictures to life and to create not just an understanding but also an appreciation for technology that goes into the design of every instrument.
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Trigger source generates a signal for the registration.
In most of cases triggering is used being synchronized with the registered and displayed signal. Triggering can be made with the following sources:
- Input channels. Depending on the oscilloscope model you can choose one of two (CH1, CH2) or of four channels (CH1, CH2, CH3, CH4). The channel chosen as the synchronization source will function regardless of its signal display.
- External synchronization input (EXT TRIG, AUX IN). As a rule acceptable signal level used for the external synchronization input is limited.
- External synchronization input (EXT TRIG, AUX IN) with internal attenuator 5 times reducing the input signal (Attenuation).
- AC network is often used for signal tracing connected with the frequency in power lines. Oscilloscope generates triggering from the power line. External synchronization input use is unnecessary.
The picture below shows a signal oscillogram. Channel 2 is synchronization source, the condition is the signal falling edge on this channel:
The next picture shows a signal oscillogram. Channel 1 is the triggering source:
En la mayoría de los casos, la activación se utiliza sincronizada con la señal registrada y mostrada. La activación se puede realizar con las siguientes fuentes:
- Canales de entrada. Dependiendo del modelo de osciloscopio, puede elegir uno de dos (CH1, CH2) o de cuatro canales (CH1, CH2, CH3, CH4). El canal elegido como fuente de sincronización funcionará independientemente de su visualización de señal.
- Entrada de sincronización externa(EXT TRIG, AUX IN). Como regla general, el nivel de señal aceptable utilizado para la entrada de sincronización externa es limitado.
- Entrada de sincronización externa (EXT TRIG, AUX IN) con atenuador interno reduciendo 5 veces la señal de entrada (Atenuación).
-La red de CA se usa a menudo para el seguimiento de señales conectadas con la frecuencia en las líneas eléctricas. El osciloscopio genera disparos desde la línea de alimentación. El uso de entrada de sincronización externa es innecesario.
La siguiente imagen muestra un oscilograma de señal. El canal 2 es la fuente de sincronización, la condición es el flanco descendente de la señal en este canal:
La siguiente imagen muestra un oscilograma de señal. El canal 1 es la fuente de activación:
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- Input channels. Depending on the oscilloscope model you can choose one of two (CH1, CH2) or of four channels (CH1, CH2, CH3, CH4). The channel chosen as the synchronization source will function regardless of its signal display. 
- External synchronization input (EXT TRIG, AUX IN). As a rule acceptable signal level used for the external synchronization input is limited. 
- External synchronization input (EXT TRIG, AUX IN) with internal attenuator 5 times reducing the input signal (Attenuation). 
- AC network is often used for signal tracing connected with the frequency in power lines. Oscilloscope generates triggering from the power line. External synchronization input use is unnecessary. 
