Audimeter

Audimeter

A devise attached to a television (or, originally, a radio) that records and transmits whether or not the television is turned on, and how long it broadcasts a particular channel. The audimeter was developed in 1936; the A.C. Nielsen Company has used it ever since to measure the popularity of different programs. The audiometer results affect advertising rates and even help determine whether programs continue to air.
References in periodicals archive ?
1936: Audimeter: "scientifically measure human attention" (p.104)
For instance, audimeters (or people meters) were implemented as methodological tools to measure television audiences in Chile in 1992, more than 20 years after Europe began to use them and much later than Brazil, for instance.
The TV viewing behavior of a small sample of 20 households was monitored over a week's time by means of a video camera.(12) The results indicated that rating-service methods of TV exposure (audimeters and viewing diaries) produced estimates of viewing that were 20 to 50 percent higher than primary or secondary activities reported in time diaries.(13)