We'd like to use analytics cookies to understand which symbols people look up, so we know what to research next. They are not used for advertising and we set none of them unless you say yes. What we store.
A solid downward triangle marking a common reference.
Also known as: Common symbol, Zero volt reference, Analogue ground
Signal ground is the zero-volt reference a circuit measures against, drawn as a filled triangle. It is a reference point rather than a safety connection, and in a well laid-out design it is kept separate from the chassis and from protective earth.
Denotes the common zero-volt reference against which signals in a circuit are measured.
Contexts: Technical drawing, Electrical equipment
Is a measurement reference rather than a safety connection, and is deliberately kept distinct from chassis ground and protective earth in careful design.
Contexts: Technical drawing, Electrical equipment
A solid triangle pointing downwards with a short vertical stem rising from its flat top.