Sensitivity (electronics)
- Sensitivity (electronics)
The sensitivity of an electronic device, such as a communications system receiver, or detection device, such as a PIN diode, is the minimum magnitude of input signal required to produce a specified output signal having a specified signal-to-noise ratio, or other specified criteria.
"Sensitivity" is sometimes improperly used as a synonym for "responsivity".
; Microphones: The sensitivity of a microphone is usually expressed as the sound field strength in decibels (dB) relative to 1 V/Pa (Pa = N/m2) or as the transfer factor in millivolts per pascal (mV/Pa) into an open circuit or into a 1 kiloohm load.; Loudspeakers: The sensitivity of a loudspeaker is usually expressed as dB / 2.83 VRMS at 1 meter. This is not the same as the electrical efficiency; see Efficiency vs Sensitivity.; Hydrophones: The sensitivity of a hydrophone is usually expressed as dB re 1 V/µPa.
References
External links
* [http://www.sengpielaudio.com/calculator-transferfactor.htm Microphone sensitivity conversion from dB at 1 V/Pa to transfer factor in mV/Pa]
* [http://www.wilcoxon.com/vi_index.cfm/CatS_ID=14/more=yes Hydrophone Sensitivity]
* [http://www.maxstream.net/spotlight/advantage/t1#at1 Wireless Receiver Sensitivity]
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