Polish Version

EQCM

EQCM

EQCM

EQCM

EQCM

EQCM

EQCM

EQCM

EQCM

Mikrowaga M106

EQCM G106
resolution 0.1 ng
automatic tests of crystal
100 measurments p/s
range 100 ug
computer interface RS 232C
analog output
two analog inputs

The Model M106 Electrochemical Quartz Crystal Microbalance is an extremely sensitive instrument for precision measurement of very small mass changes in the ranges from 1 ng to 100 ug.

Quartz Crystal Microbalance M106 consists of two basic units: Oscillator unit and Central unit. The task of Oscillator unit is to record the frequency changes of quartz crystal, which is coupled with measuring oscillator.

The oscillation frequency changes with any change of mass rigidly attached to the metal electrode (gold or platinum) evaporated on the quartz surface. The frequency change is measured by the instrument and converted to the mass units. The crystal is attached to the bottom of an electrochemical cell using a silicone - rubber. The cell is placed into a holder, which is connected to easily changed insert. In this way fast replacement of the crystal is possible (it takes seconds). One of two electrodes present on opposite faces of the quartz crystal, which has contact with solution, is the working electrode (WE). The instrument uses the AT-cut 10 MHz quartz crystals 14 mm in diameter.

Model M106 EQCM measures changes of frequency using two methods: interval measurements (fast) and classic (one second) method. An internal computer translates interval measurements to frequency and then both values to mass change. Before the start of measurements the instrument performs automatic tests of crystal in order to make the measurements more precisely.

  APPLICATIONS:  


  ADDITIONAL POSSIBILITIES:  


  SPECIFICATIONS:  

Fundamental frequency of crystal10.000 MHz ±10kHz
Range of frequency change0 - 100 kHz.
Frequency resolution0,1 Hz
Number of measurements in 1s (for f > 200Hz) ~100
Range of mass change1ng - 100µg
Mass resolution0,1 ng
Analog output voltage0 - 10V
Analog output accuracy±0,1% of value,±0,1% FS, ±1mV
Analog input voltage X and Y-10V - +10 V
Analog input accuracy ±1% of value, ±0.5% FS
Power supply220 V, 50 Hz

  ARTICLES  



More informations: meeck@meeck.pl