FireDOC Search
Author
Emson, I. C.
Title
Audible Warnings for Fire Appliances.
Journal
Institution of Fire Engineers Quarterly, Vol. 22, No. 45, 44-5105, 1962
Keywords
warning systems
|
fire alarm systems
|
experiments
|
field tests
|
false alarms
|
signals
|
noise (sound)
Identifiers
mean threshold levels of warning devices; number of false alarms recorded; variation of signal level with distance