¿Qué es una punta lógica y cómo se usa?

Por: wadmin 25/08/2021 45 Comentarios Blog de "La Electrónica",

PUNTA LÓGICA

 

 

 

 

Punta lógica o también conocida como sonda lógica, es utilizada para mediciones de corriente continua generalmente en electrónica digital y mecánica automotriz.

 

Debido a que únicamente indica entre tres estados: nivel alto, nivel bajo y desconexión.

 

 

 

 

NIVEL ALTO

 

 

 

Los conectores (caimanes) deben ser conectados en polarización directa, positivo con positivo y negativo con negativo de la fuente de alimentación.

 

Luego con la punta, podemos verificar en el punto deseado si hay o no hay un "voltaje positivo" (uno lógico).

 

Un LED interno de color rojo indica la medición.

 

 

 

 

NIVEL BAJO

 

 

 

Nuevamente, los conectores (caimanes) deben ser conectados en polarización directa, positivo con positivo y negativo con negativo de la fuente de alimentación.

 

Luego con la punta, podemos verificar en el punto deseado si hay o no hay un "voltaje negativo" (cero lógico).

 

Un LED interno de color azul indica la medición.

 

 

 

 

DESCONEXIÓN

 

 

 

Por último, los conectores (caimanes) deben ser conectados en polarización directa, positivo con positivo y negativo con negativo de la fuente de alimentación.

 

Mientras tocamos con la punta el lugar a medir, la punta no detecta voltaje. En este caso puede que el circuito tenga una desconexión o que se trate de un circuito externo con otra fuente de alimentación.

 

En este caso, no encienden los LED internos, indicando una desconexión del circuito medido.

 

 

 

 

 

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