In Electronics and Instrument Physics
- Another name for the cathode in vacuum tube technology which emits electrons through thermionic emission or field electron emission.
- Another name for the anode in scientific instruments and techniques based on the emission of ions from a solid surface, for example Atom Probe Tomography.
- The analog of the vacuum tube cathode in transistor technology, though the current flow through it may be either positive or negative, depending on the type of transistor.
- An infrared LED used to emulate a remote control. It can also be wired into the integrated receiver/decoder of any electronic device.
- Lambertian Emitter - a light source whose radiance is according to Lambert's cosine law.
Read more about this topic: Emitter
Famous quotes containing the words electronics, instrument and/or physics:
“We live in a highly industrialized society and every member of the Black nation must be as academically and technologically developed as possible. To wage a revolution, we need competent teachers, doctors, nurses, electronics experts, chemists, biologists, physicists, political scientists, and so on and so forth. Black women sitting at home reading bedtime stories to their children are just not going to make it.”
—Frances Beale, African American feminist and civil rights activist. The Black Woman, ch. 14 (1970)
“A poet is a combination of an instrument and a human being in one person, with the former gradually taking over the latter. The sensation of this takeover is responsible for timbre; the realization of it, for destiny.”
—Joseph Brodsky (b. 1940)
“We must be physicists in order ... to be creative since so far codes of values and ideals have been constructed in ignorance of physics or even in contradiction to physics.”
—Friedrich Nietzsche (1844–1900)