동탄성계수측정기 (Model ERUDITE MK.II)

erudite.jpg

● Applications
     · Used by quality control and research departments of many leading companies and institutions, to test
       materials such as concrete, carbon, graphite & ceramics.
     · Automatically measures the fundamental longitudinal, torsional and traverse resonant frequencies and
       calculates the damping constant 'Q'. 

● Features
     · Conforms to BS1881 : Part 209. recommendations for the measurement of dynamic modules of elasticity.
     · Comforms to ASTM C215, standard test method for fundamental traverse longitudinal and torsional freq-
       uencies of concrete specimens.
     · Latest microprocessor based technology to achieve high accuracy, sensitivity and repeatability. 


 Specifications

 1. Oscillator

      Frequency Range
      Frequensy Resolution
      Output Voltage
      Output Monitor
      Input Monitor

 1Hz∼100kHz
 1∼99.99Hz = 0.01Hz, 100∼999.9Hz = 0.1Hz, 1000∼9999Hz = 1Hz and > 10kHz = 10Hz
 0∼2V pk-pk into 3Ω load (0.707V R.M.S into 3Ω, 1.5W) limited by software for health and safety reasons
 0∼2V pk-pk from BNC socket on rear panel for oscilloscope X input
 0∼2.5V pk from BNC socket on rear panel for oscilloscope Y input

 2. Display

 Frequencies, voltages and option menus displayed on a 20 character x 4-line liquid crystal display

 3. Key Pad

 16-key sealed membrane, for entering data and control parameters

 4. Drivers

 

      Large Mass Specimens
      Small Mass Specimens

 3Ω contack vibrator
 Electro-magnetic air gap driver

 5. Vibtation Sensor

      Large Mass Specimens
      Small Mass Specimens
      Traverse Mode

 Miniature crystal accelerometer
 Electro-magnetic air gap receiver
 Surface mounting sensor

 6. Environmental

      Power Supply
      Operating Temperature Range

 110/230V, 50/60Hz single phase AC (user selectable)
 0∼40℃

 7. Components

 Main unit, Test bench, Accelerometer & vibrator with connection cable, Contact rod assembly, Coupling plate,   Surface mounting accelorometer, Longitudinal block, Flexural & torsional block, Operation manual