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.

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/   1:10 Bridge...............................2.2nV/   With option 01...............400 Picovolts/   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/     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

* All specifications might change without a prior notice.


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