Hot-Wire & Film Anemometry System AN-1002
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AN-1002 Low-Cost Hot-Wire Anemometry mainframe

The AN-1002 is a low cost mainframe made for AN-1003 or AN-1005 Hot-Wire and Hot-Film Anemometry channels.

This mainframe is an excellent solution for customers who need a low-Cost mainframe for housing only one or two channels.

The mainframe includes an internal pulse/square wave generator for running the pulse response test and an internal 100mV Voltage reference for calibration of the amplifier's gain. It interfaces to an Oscilloscope and external data acquisition system via BNC's on front panel.

Channel's setup is done with the aid of an external Digital Voltmeter and an Oscilloscope. The mainframe includes an external power supply which includes all necessary voltages for driving 2 channels.


AN-1002

FEATURES:

* Portable system - up to 2 channels

* Simple operation using Toggle Switches

* Very low cost!

* Ideal for research and education

* Use the high performance   AN-1003 and AN-1005 channels

* Easy operation

* Easy, step by step calibration software for all probe types,
   for Liquid or Gas, Velocity or Temperature


Technical Data

  AN-1003 / AN-1005
Channel's Specifications
:

   C.T.A Bridge: 

   Non-linear,Constant-Temperature type:
   Bridge ratio.........................1:10 and 1:1
   High power mode.................1:20 and 1:2
   Sensor resistance range:
   1:1 Bridge...........................0.5-99.9Ohm
   1:10 Bridge.........................1.0-9.99Ohm
   Cable resistance compensation.0.2-1.2Ohm
   Maximum closed loop bandwidth:
   1:1 Bridge.............................DC-120KHz
   1:10 Bridge............................DC-100KHz
   With option 04.......................DC-500KHz
   Maximum probe current:
   x1 Drive ..............................300 mA max
   x2 Drive ..............................600 mA max
   Equivalent input noise:
   1:1 Bridge..............................1.6 nV/SQRT
  1:10 Bridge...............................2.2nV/SQRT
  With option 01...............400 Picovolts/SQRT
  Typical hum induced in input.......0.03µVrms 
  Typical output noise: 
  5µm Tungsten probe:
  OHR=1.5, U=0, B.W.=10 KHZ.....135 µVrms 
  The same with option 01.............60 µVrms
  Stability:typical input drift:
  1:1 Bridge................................0.5µV/°C 
  1:10 Bridge..............................0.3 µV/°C
  Less than 0.1µV/°C with option 01.
  Probe cable.............5m of RG174 or RG58A
  Output......Top of bridge or amplifier output
 

  C.C.A Bridge
  (Constant Current Anemometer,opt.11):
  Fixed currents.................1,2,5,10,20 mA
 and any combination of those current levels
  Variable current source..............0.3-30 mA
  Selected current is displayed on Test-module

  Power Supply:
 Output Voltages..........................±15V,±5V
  Maximum current(@±15V)..................±2.5A
  Hum & Noise.............................<100µVrms 

     Signal Conditioner:

   Output voltage range.................±12V
   Amplifier gain.............................1-20
    presettable to any gain in range
(may be ordered with 1-50 or 1-100 ranges)
    Gain accuracy............................0.5%
    DC offset.................................0-10V
    Output impedance...................100Ohm
   50Ohms available per request
    Input impedance....................10K Ohm 
    Typical input white noise..........30nv/SQRT
    Frequency range..................DC-100KHz
    Typical equivalent input drift...160µV/°C 

    Low-Pass Filter:

    Triple pole Butterworth Type. 
    12 Cut-off Frequencies in 2 bands:
    Lower band..300Hz-5KHz(6 frequencies) 
    Upper band...7KHz-16KHz(6 frequencies)
    (Other frequency bands can be ordered)

   Test Module

    Pulse Generator:

    Frequency................................2KHz
    Duty Cycle.......0.1% or 50% continuous
    Rise Time................................50nSec

     DC Reference:

    Output Voltages..........................0.1V
   Accuracy.......................50ppm/°C,0.1%

   All Analog Outputs are available on front panel.



 

   

Download Datasheet Download PDF file

* All specifications might change without a prior notice.


For more information about our Hot-Wire Anemometry products , please click here.

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