Digital Vibration Calibrator, vibration measuring instruments,calibrate accelerometer, velocity
Application for Vibration Calibrator:
1.Can be used to calibrate vibration accelerometer, velocity and
proximity transducer and also a
vibration measuring instruments. Standard sine signals at frequency
10, 20, 40, 80, 160, 320,
640 and 1280 Hz
2.Can be generated from the calibrator the amplitude of the
acceleration, velocity and
displacement
3.Can be defined through potentiometers and shown on digital
displays. Either horizontal or
vertical vibration can be generated.
4.VMC-5000 vibration calibrator combines sine signal generator, power
amplifier,
standard transducer and a shaker in one and features a small
volume, high accuracy
and easy operation. It can be used either in laboratory or on site.
Specifications:
Frequency: 10, 20, 40, 80, 160, 320, 640, 1280Hz +0.01%
Unit:
Acceleration: m/s2 (PEAK)
Velocity: mm/s (RMS)
Displacement: um (PK-PK)
Amplitude accuracy:
Acceleration (30m/s2 pk, 80Hz) 40Hz to 320Hz + 0.3dB + 1digit
10Hz to 1280Hz + 0.5dB +1digit
Velocity ( 25mm/sec pk ,80Hz) 40Hz to 320Hz +0.5dB +1digit
Displacement (10μm pk-pk, 80Hz) 40Hz to 320Hz + 0.5dB + 1digit
Proximity probe linearity
Prode: 5mm and 8mm probes Range: 0~4.0mm
Display: 3 1/2 digit display for acceleration, velocity or displacement
Maximum vibration amplitude and maximum load:
Because of the vibrostand used in VMC-5000 Vibration Calibrator is
rather small, during the
calibration of transducers of different weight under different
frequencies the output amplitude of
the calibrators are also different. Maximum vibration amplitude and
maximum load are related to
the maximum acceleration. Maximum velocity and maximum displacement
output generated from
the calibrator under a certain frequency and with a certain weight
of the transducer to be
calibrated.
The specific figures can be seen in the following table.
Wt
Freq | <100g | <250g | <650g |
| a(m/S2) | v(mm/S) | d(μm) | a(m/S2) | v(mm/S) | d(μm) | a(m/S2) | v(mm/S) | d(μm) |
| 10Hz | 2.5 | 28 | 1300 | 3.5 | 40 | 1800 | 4 | 45 | 2000 |
| 20Hz | 15 | 85 | 1900 | 10 | 60 | 1300 | 5 | 28 | 640 |
| 40Hz | 60 | 170 | 2000 | 35 | 100 | 1100 | 12 | 35 | 380 |
| 80Hz | 100 | 141 | 800 | 40 | 60 | 320 | 14 | 20 | 110 |
| 160Hz | 75 | 53 | 150 | 35 | 25 | 70 | 12 | 8.5 | 24 |
| 320Hz | 50 | 18 | 25 | 30 | 10 | 15 | 10 | 3.5 | 5 |
| 640Hz | 30 | 5 | 3 | 20 | 3.5 | 2 | 6 | 1 | * |
| 1280Hz | 23 | 2 | * | 10 | 0.9 | * | 5 | 0.4 | * |
Note: With higher frequency the value of the displacement of
vibration is very small so there
will be no vibration signal output from the calibrator.
Size: 280 x 180 x 250(mm)
Weight: 20lb,9kgs
Temperature: Operation: 0oC to 50 oC
Storage: -20 oC to 70 oC
Humidity: 90% non –condensing
The control panel of VMC-5000 Vibration Calibrator is shown as
following:
1 Vibration amplitude output display Showing the amplitude of the
different vibration signal output
of the calibrator
2 Calibration potentiometer
3 Function selecting switch Shifting the output of the calibrator
to acceleration, velocity or
displacement
4 Potentiometer for adjusting the output amplitude
Adjusting the potentiometer to change the output vibration
amplitude
5 Adjusting the the output vibration amplitude slowly
6 The table for fixing the transducer to be calibrated
7 The thread hole for fixing the stand of proximity probe
During the calibration of proximity probe, the stand of the
transducer is fixed on the control panel
through this thread hole.
8 Power switch 220 VAC
9 Socket for 220 V AC power input
Used for connecting 220 V AC power.
10. Socket for power output
For monitoring the wave shape of the output signal of the power
amplifier of the calibrator.
11 Output socket of – 24 V voltage
Providing power at – 24 V for proximitor during the calibration of
proximity probe.
12 Frequency selecting switch
TAG: Vibration Meter
