N2103

The N2103 is a precision vibration meter and sound level meter, made in the microproduction workshop of the ICE research institute in Bucharest, where it was designed [1]. Ten vibration meters and five sound level meters, with imported microphones, were made [1].

ICE’s laboratory for electronic instruments for measuring non-electrical quantities designed approved prototypes for many branches of the economy: strain gauge equipment (some configurations were exported to East Germany in 1971–1974 and 1977–1989), vibration meters, dimensional gauges, ultrasonic non-destructive testers, geophysical well-logging equipment and railway equipment [1]. Its designs were made in series at IEMI (27 types) and at the Precision Mechanics Enterprise (5 types), or in ICE’s microproduction workshop (45 types) for small series and one-off models [1].

ICE’s list of microproduction describes the N2103 and the portable N2104 as instruments for measuring vibration in the bearings of large rotating machines such as turbines and fans [2].