A control signal that varies over a range (e.g., temperature of a room).
An electrical signal such as that sent over a phone line.
A continuously variable signal that can have any value over a given range. For example, an analogue voltage within the range 0 to 10 Volts can have values of 0, 2, 8.785 or any value between. Most dimmers require an analogue voltage in order to operate (from 0 to -10V or 0 to +10V depending on the manufacturer). Most lighting control desks produce a digital multiplexed output, which is converted by a demux box to an analogue signal for the dimmer. See also Digital dimmer.
a signal with a changing amplitude
A signal sent using an analogue system ie with no specified limit on transmitted data.
Most CCTV cameras, although internally working with digital components, produce a standard analogue signal. This is where the image is represented by a variable voltage level and frequency timings. In the UK and Europe, the standard for the analogue signal output from CCTV cameras is called PAL. In the USA the standard is called NTSC.
a continuously variable representation of a physical quantity, property, or condition such as pressure, flow, temperature, etc
a limiting case of a digital signal
The principal feature of analogue signal s is that they are continuous. In contrast, digital signals consist of values measured at discrete intervals.
An analogue signal is one that can change smoothly over a range of different values. Systems
A method of conveying voice, image or video information by a signal that varies continuously in amplitude with the information being transmitted (ie, the direct representation of a waveform) and is re-converted into sound and pictures by receiving equipment.
A signal whose level alters continuously.
continually changeable type of voltage or a wave shape, such as a sound wave etc.
In video terms, the representation of a camera scene by varying voltages in the video signal, the voltage being directly proportional to the light level.
Continuously varying voltage signal
An electrical signal that varies continuously over an infinite range of voltage or current values, as opposed to a digital signal, which varies discreetly between two values, usually one and zero. It is easiest to think of analogue signals as sine waves of various sizes. Compare with Digital Signal.
A continuously varying waveform.
