Hot-wire anemometer paper tape reader

The Hot-Wire Anemometer Paper Tape Reader was conceived as a relatively simple apparatus to serve as a high reliability device such as required in peripheral computation equipment. The hot-wire anemometer principle has been employed extensively in the past for the study of transient air flow phenomena in compressors and turbines. The principle of operation concerns an electrically heated wire used to detect a change in air velocity in its immediate vicinity by observing its change in temperature and consequent change in resistance. Using this principle to read perforated members such as punched paper tape at high speeds offers a number of distinct advantages over conventional reading methods.