Nor1270 er et akselrometer for generelt bruk innen industri og laboratorie.
Dette triaxiale akselrometeret er utviklet for helkroppsvibrasjoner iht. ISO 2631 og ISO 8041.
Den integrerte kabelen er 2 meter lang med kontakter som passer inn på Nor133 og Nor136. Sitteputa består av en gummidel, en plate i alumimium med adapter hvor triaxial akselrometer Nor1288 er montert. Nor1288 akselrometer kan demonteres for kalibrering.
Dette akselrometeret er designet for hånd/arm vibrasjonsmålinger iht. ISO 5349 og ISO 8041 og til generelle vibrasjonsmålinger. De små fysiske dimmensjoner og lave vekt minsker at akselrometeret innvirker og gjør monteringen enklere.
3-akset akselerometer Nor1288 er designet for generelle vibrasjonsmålinger og som et referanse akselerometer når man gjør målinger av helkroppsvibrasjoner i 6 kanaler med Nor136. Nor1288 monteres da på selve kjøretøyet og korrelasjonen mellom kjøretøyets vibrasjoner og sjåførens sete kan måles.
Lemo 7 pin 1B male to 2xLemo 00- 4 pin female adapter for Nor136. Included in Nor136 deliveries.
The small dimension and low weight makes I easy to mount it on the handle bar on various devices for testing Hand Arm vibrations in accordance to various standards, such as ISO 5349. Mounting screw for accelerometer is 3mm.
The adaptor plate is strapped to the handle bar by using a standard cable tie. Maximum dimension of the cable tie is (WxH) 5,9 x 2,9mm. This allows use of both plastic and steel cable ties.
The tri-axial geophone Nor1292 is a sensitive transducer for vibration velocity based on a rugged geophone construction used by seismologists and geophysicists for decades. One main application is for the measurement of vibrations in buildings. The frequency response is essentially flat from the resonance frequency 4,5 Hz and up to at least 500 Hz. However, by using the frequency compensation found in some Norsonic instruments like Nor133 and Nor136, the applicable frequency range may be extended downwards to 1 Hz. This also applies if the signal is measured as function of frequency, e.g. 1/3-octave bands where frequency correction may be used.
The transducer is a passive device and needs no power for operation.
The geophone Nor1292 plugs directly into the input socket of the six channel vibration analyzer Nor136. It will then connect directly to channel 1, 2 and 3. A second geophone may be connected to channel 4, 5 and 6 of the same Nor136 instrument by the use of an adapter.By the use of adapters, the unit may be connected to the tri-axial vibration analyzer Nor133.
The unit may also be applied in connection with a suitable sound level meter like Nor140. Only one direction can then be measured at the time by a one-channel instrument.
The measurement range is limited upwards by the maximum displacement the transducers can handle and the maximum acceleration where the transducer follows the movement of the supporting surface. The maximum displacement is 1,8 mm peak-to-peak giving an RMS-value of 0,6 mm. Below resonance this will increase since the coil will follow the movement of the housing. If the acceleration is too high, the geophone will not follow the vibrating surface to be measured. The limit in the diagram below is set to 2 m/s2.
The lower limit is set by the noise floor in the transducer and measuring instrument. If the instrument has an electrical noise floor of 0,3 μV – achievable for restricted frequency bands – this corresponds to a vibration level of 10-8 m/s or 0,00001 mm/s with the nominal sensitivity of 26 Vs/m. The noise in the transducer itself is even lower – mainly determined by the source resistance of 380 ohm which corresponds to about 0,04 μV in a bandwidth of 250 Hz.
Nor1438 is a BNC to Lemo cable. Having a length of 2 metres, this cable is a 3 mm thin and flexible cable with BNC connector in one end and a Lemo male in the other end. For connection of an electrical signal to a measuring instrument using Norsonic Lemo system.
Microdot-microdot cable suitable for use on accelerometer Nor1270 and Nor1271.
1,5m cable for connecting a Norsonic tri-axial accelerometer to Nor133/Nor136 vibration meters, fitted with 4 pin Lemo connectors.
5 m cable for connecting a ZWB/GS3T Geophone to Nor136 vibration meters.
Nor4557 Mounting magnet with 4mm thread for use with Nor1288 Tri-axial accelerometer.
Base diameter 30mm. The Rare-earth magnet material ensures a high magnet mounting force.
This cable is for connecting an IEPE accelerometer such as Nor1270 to the Sound Analyser Nor140.
Cable length is 1,2 m.