Hedonometer

A hedonometer or hedonimeter is a device used to gauge happiness or pleasure. Conceived of at least as early as 1880, the term was used in 1881 by the economist Francis Ysidro Edgeworth to describe `an ideally perfect instrument, a psychophysical machine, continually registering the height of pleasure experienced by an individual.` More recently.....
Found on http://en.wikipedia.org/wiki/Hedonometer

hedonometer

hedonometer Used humorously, an apparatus for measuring pleasure.
Found on http://www.wordinfo.info/words/index/info/view_unit/2502/
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