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Sonic Belt Tension meter "Unitta" Model U-508
[U-508]
$763.89

Sonic Belt Tension Meter

U-508

CAT.513-1

 

FEATURES OF U-508

§  The 500 latest results are retained for record keeping.

§  Exporting the results to PC is possible. (Note: Operate only Japanese Microsoft Windows Vista/7/8)

§  Judgment functions of the result. Utilizing the equipped application U-508 for PC, before hand, you can set up both upper and lower limit; therefore you can easily find out the result.

 

Measurement principle of U-508

When we make a belt between pulleys vibrate by giving impact, it starts to oscillate irregularly, but

gradually it oscillates inherent regular moves. In the past, there was no easily implemented device

which could catch these small waves. We succeeded in catching the period of wave pattern relatively

easily by developing a data handling method to capture the vibration frequency that made full use of

microcomputer. As for the system, sensor detects the vibration waveform; microcomputer calculates

the character vibration number by processing the data. It can measure tension value more accurate

than calculation formula in the program. Patent:No.1931781

 

Measurement Step

1.   Gain adjustment (Automatic canceling of background noise)

     This unit measures the surrounding noise environment periodically after power-on unit pressing of

     “MEASURE” button, and automatically adjusts the sensitivity of sensor. Press “MEASURE” button of

     fixing the sensitivity of sensor.

2.   Detection of vibration waveform

     The sensor detects sonic wave which was generated by flipping the static belt with a finger.

3.   Removal of noise component

     Self-contained filter automatically removes noise component.

4.   Measurement of cycle

     Cycle measurement circuit measures every cycle of input waveform.

5.    Signal processing

     Measures basic waveform by oscillation pattern which differs from condition to condition by data

     processing established in simulation.

6.   Frequency conversion process

     Converts continuous stable waveform into frequency.

7.   Tension calculation process

     The unit converts belt tension when unit weight, width, and span length of corresponding belt are

     input with numeric key.

 

Calculation: To = “4 x M x W x S2 x f2 x 10-9

 To : Tension

W: Belt width or number of ribs (wires) (mm/R)

  M: Unit mass (g/mm width x m length)

S: Measured span length (mm)

 

f: Horizontal characteristic frequency (Hz)

 

Sonic Belt Tension Meter U-508

Model name

U-508

 

Model number

TM-508

 

Measurable range

10Hz ~ 5,000Hz

 

Battery

Alkaline battery (Triple A type x 2 pieces)

 

Mass

120g

 

RoHS

Certified

 

Accessories

Flexible type sensor (TM-AMM)

Soft case for carrying

Two triple A batteries

USB cable is not attached

 

 

 

This product was added to our catalog on Tuesday 16 October, 2018.
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