Specifications
- Function
- vibration acceleration, velocity and amplitude
- Measuring ranges
- 0.03–1000 m/s²; 0.03 mm/s – 5 m/s; 0.03 µm – 0.1 mm
- Frequency range
- 2 Hz – 5 kHz
- Accuracy
- 10% total
- Construction
- integrated circuits
Sources: [4]
Description
The N2104 is a portable vibration meter, made in the microproduction workshop of the ICE research institute in Bucharest, where it was designed [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].
IEMI’s lists include it among the vibration meters it made [2].
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 [3].
Annex III.2.11 lists it among IEMI’s products, as an electronic vibration meter with a piezoelectric accelerometer transducer, built with integrated circuits; it measured acceleration from 0.03 to 1000 m/s², velocity from 0.03 mm/s to 5 m/s and amplitude from 0.03 µm to 0.1 mm, over 2 Hz – 5 kHz, with a total error of 10% [4].
Gallery
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Schematics
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Documents
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References
- [1]N. Millea (coord.) et al. – „Electronica românească. O istorie trăită”, vol. II „Electronica profesională”, AGIR, section II.4.2 „Laborator aparate electronice pentru măsurarea mărimilor neelectrice și aplicații industriale”, pp. 116–122
- [2]N. Millea (coord.) et al. – „Electronica românească. O istorie trăită”, vol. II „Electronica profesională”, AGIR, sections III.2 „Producția IEMI” and III.3 „Comentarii tehnico-economice”, pp. 302–317, and annex III.2.3 „Producția IEMI – aparate electronice de măsură și industriale”, pp. 383–386
- [3]N. Millea (coord.) et al. – „Electronica românească. O istorie trăită”, vol. II „Electronica profesională”, AGIR, annex II.4.4 „ICE – aparate realizate în microproducție” (list), pp. 569–570
- [4]N. Millea (coord.) et al. – „Electronica românească. O istorie trăită”, vol. II „Electronica profesională”, AGIR, annex III.2.11 „Aparate pentru măsurarea mărimilor neelectrice”, pp. 647–655