Difference between "magnetic phase difference method" and "new magnetic phase difference method"
  Magnetic phase difference method (using gear) New magnetic phase difference method (using electromagnetic induction theor)
Detectors

SS/MD/DD/EZ/DSTP series

TH series

Phase difference calculation method

Double gate method (averaging for a given length of time)

Instantaneous phase difference method (measuring with respect to one-phase difference)

Motor/AC power source

AC power is required because an auxiliary motor drives a rotating hollow cylinder with internal tooth gear in a detector.

Motor and AC power is not required because AC magnetic field is generated inside the detector.

Setup

Set up characteristic data of a torque detector (factor or zero etc.) on a display. (Characteristic data is written in the model plate.)

Set up characteristic data of a torque detector (factor or zero etc.) to a torque meter automatically when the power is on.

Accuracy

±0.2 %/F.S.

±0.1 %/F.S.

CE marking

SS-E series only

All TH series

Signal from detector to display unit (torque meter)

Phase difference of sine wave signal

Phase difference of pulse signal (line driver output)

Max. frequency response(*1)

 

 

 

 

Reading speed of analog output variation

10 Hz

Standard:100 Hz
At high-speed option installed: 5 kHz

Setup by time constant

Standard: 63 ms (TS-2700)
        : 16 ms (TS-3200)
Option    : 1 ms                 

Can be setup by time constant or by cut off frequency.

• Time constant standard: 1.6 ms
                         option: 0.16 ms
• Cutoff frequency; standard: 100 Hz
                               option: 5 kHz

Update time

 

Time interval of measuring time

Every 4 ms
(optionally available: update every 1 ms)

Every 50 µs

Rotation direction(CW/CCW)

External rotation direction selector is required.

Rotation direction selector is not required.

 

*1. Response can be changed by time constant setting value of a torque meter. Mechanical response has restriction by inertia moment and spring constant of the torque meter, specimens connected with the torque meter.

 

  • SS series and TH series have same dimensions of mounting hole, center height, and shaft diameter.

Revised:2012/07/17


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