Digital FM Telemetry [ 90332 ]

Digital FM Telemetry [ 90332 ]
Digital FM Telemetry [ 90332 ]

The 90332 digital FM telemetry systems is designed to be used with full-bridge, strain gage sensors. The system features a miniature transmitter powered by a simple 9V battery, and a remote receiver capability of receiving the digital transmission over long distances. The digital technique eliminates many of the problems associated with traditional analog frequency modulated telemetry systems. Improvements with a digital technique include elimination of ripple, temperature drift characteristics, and higher signal resolution. 

The transmitter features a selectable transmission frequency for use over multiple systems. Up to 8 separate transmitters can be operated in close proximity without interference. The receiver base features a digital display, high level analog output, good data relay signal outputs, zero and span adjustments, and RS-232 serial output.


SPECIFICATIONS
Analog Output (receiver) ............................... 0 to +/- 5Vdc
Sample Rate .............................. 1250 samples per second
Low Pass Filter ................... 300Hz, 4-pole Butterworth type
Analog to Digital Conversion ..................................... 12 Bit
Resolution .................................................. +/- 2000 Counts
Channels ...................................... 1 of 8 (jumper selectable)
Carrier Frequency .................................................... 900Mhz
Drift .............................................................. 0.005%/Celcius
Minimum Bridge Impedance ................................... 350ohm
Operating Current w/ 350ohm Bridge ......................... 30mA
Power Requirements ....................................... 7Vdc - 15Vdc
Maximum Operating Temperature ......................... 70 deg C
Minimum Operating Temperature ............................ 0 deg C
Options include: .............................................. encoder input
   ................................................... shaft collar (model 90301)
   ...................................................... battery powered receiver

ADDITIONAL INFORMATION

 Product Specs [PDF]  Drawing [DWF]