| MR-360 |
 MÖSSBAUER DRIVE UNIT |
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The Mössbauer Drive Unit MR-360 is used to control the source motion of Mössbauer velocity transducers . It can be operated together with all of our transducer models. The error minimisation facility of Drive Unit MR-360 provides a high precision of the source motion. By means of this facility the velocity transducer can be operated not only in its resonance frequency, but in the whole frequency range of approximately 1 ... 100 Hz.
A 3 1/2 digit display shows the maximum value of the velocity. The displayed value is based on a voltage measurement of the internal reference signal, which dermines the velocity. The measurement is triggered by the START pulse from the digital function generator at the time of the maximum of the waveform. In order to calibrate the velocity display, a Mössbauer calibration measurement has to be performed first.Then the display ed value of the maximum velocity is set by means of an adjustment screw on the fron panel.
The deviation of the motion from its ideal value is indicated by a LED bar with a logarithmic scale permitting an easy monitoring of the drive system.
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| SPECIFICATIONS |
| Controls |
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Velocity
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Front panel 10-turn potentiometer for velocity adjustment
Front panel toggle switch to reduce the range of adjustment to one tenth
Front panel toggle switch for switching the velocity transducer on or off
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GAIN
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Front panel 10-turn trim potentiometer for adjusting the amplification of the feedback loop
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P
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Front panel 10-turn trim potentiometerfor adjusting the control circuit whose signal is proportional to the reference signal
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I
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Front panel 10-turn trim potentiometer for adjusting the control circuit whose signal is proportional to the integral of the reference signal
Front panel toggle switch for switching the above circuits on or off
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| Inputs |
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Analog Input
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1 ... 12 Vpp
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Start
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2 .... 20 V
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| Displays |
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Max. VELOCITY:
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3 1/2 digit display for the maximum velocity (from 0.01 to 1999 mm/s)
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ERROR:
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Analog LED line indicating the relative error in a logarithmic scale from 0.1 to 10 %
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| Outputs |
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Monitor
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Analog signal, proportional to the correct value of the velocity
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~ 27 mV per mm/s with MA-260
~ 40 mV per mm/s with MA-260S or MVT-1000
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Error x 10
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Analog signal, proportional to the difference between the actual and the correct value of the velocity.
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~ 0.27 V per mm/s with MA-260
~ 0.4 V per mm/s with MA-260S or MVT-1000
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| Physical |
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Double width NIM-module
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Weight
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~ 1.2 kg
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| Power Requirements |
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± 12 V 300 mA
± 24 V 10 mA
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Mössbauer Drive Units 
