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  Guide to Configuring a Fiber Optic Sensing System


 

Products                                       

Power Generation Applications  -  DAVIDSON POWER      

Davidson offers a line of general use fiber optic transducers and signal conditioners that together measure pressure, temperature, vibration, load, and displacement. For general use applications, these transducers and signal conditioners can be multiplexed and configured in a variety of ways to create a sensing system.  In addition to the components of a general use fiber optic sensing system, Davidson has developed product lines that are specifically tailored for process control, power generation, and oil and gas production. 

 

See gas turbine Combustion Dynamics Monitoring Systems for details about turnkey systems for monitoring combustion dynamics.

 

Call us at 877-656-4900 to discuss your most demanding needs!

 

Process Control

Davidson Process offers fiber optic transducers that measure pressure, temperature, level, and flow.  The systems are suitable as form-fit-function replacements for existing electronic transmitters and can be fitted for intrinsically safe installations.

Power Generation

Davidson Power offers customized transducers with integrated signal conditioners for a variety of applications including combustion dynamics monitoring in gas turbines and monitoring of the combustion cycle/compression cycle in industrial engines and compressors.

Oil & Gas Production (Davidson Energy, Inc)

Davidson Energy offers downhole point pressure and temperature measurement sensing systems, i.e. transducer and signal conditioner.  Davidson's system operates at temperatures to 500ºF, pressures to 20,000 psi, and at transmission ranges to 15km.

 

Pressure Transducers

 

Absolute

AP1200.PDF

 

  • Operating Pressure Ranges from 1 Torr to 20,000 psia
  • Operating Temperature ranges 550° F,  750° F, and 1000° F
  • Accuracy to 0.05% of Full Scale with Temperature Correction

Gage

GP1200.PDF

 

  • Operating Ranges from 100 psig to 20,000 psig 
  • Operating Temperature ranges 550° F,  750° F, and 1000° F
  • Accuracy to 0.05% of Full Scale with Temperature Correction

Pressure Pulsation

GT1200.PDF

 

  • Dynamic Operating Pressure Pulsation Range 5 psi
  • Static Pressure Range 500 psi
  • Operating Temperature Range 1000° F
  • Accuracy to 3% of Full Scale
  • Frequency Response 2 Hz to 5 kHz (3dB down); 10 Hz to 4 kHz +/- 0.4 dB
  • Dynamic Range 45 dB

Differential

DP1200.PDF

 

  • Ranges of 100 and 400 inches of water
  • Line Pressure Ranges of 100, 500, 1000, 2000 and 3000 psig
  • Operating Temperature Ranges 550° F and  750° F
  • Accuracy to 0.1% of Full Scale 

 

Vacuum

AP1200.PDF

 

  • Ranges of 1 Torr, 10 Torr, 50 Torr, 760 Torr
  • Temperature Ranges 550° F and  750° F
  • Accuracy to 0.1% of Full Scale

 

Temperature Probes

 

Single Point

SP1200.PDF

 

  •  Ranges of 550°F and 1000°F
  •  Quick Response
  •  Accuracy to +/- 1°F

Multipoint

MP1200.PDF

  • Ranges of 550°F and 750°F
  • Up to Sixteen Discrete Sensing Points
  • Accuracy to +/- 1°F

Load Cells

LC1200.PDF
  • Ranges 10, 20, 50, 100, 200, 500, 1000, 2,000, 5000, 10,000 Pounds
  • Sizes 1.0 inch and 0.5 Inch Diameter
  • Temperature Ranges 500° F and  750° F
  • Accuracy to 0.1% of Full Scale with Temperature Correction

Vibration Sensors / Accelerometers

AC1200.PDF
  • Ranges 1 μg to 1000 g
  • 0.1 Hz to 10 kHz
  • Temperature Range 500° F

Position/Displacement Sensors

Linear

LP1200.PDF

 

  • Range 1"
  • Accuracy 0.1% of Full Scale

Rotary

RP1200.PDF

  • Range 360º
  • Accuracy 0.1% of Full Scale

 

Signal Conditioners

 

Absolute           High Resolution

DSU1200.PDF

  • 8 Channels
  • 0.05% Accuracy
  • Update Rate 1 Hz
  • Transmission Range 1000 feet
  • Output 4-20mA or RS-232/RS-485 Modbus
  • NEMA 4

 

Absolute           High Resolution

DSU1250.PDF

  • Up to 32 Channels in 8 Channel Modules
  • 0.05% Accuracy
  • Update Rate 1 Hz
  • Transmission Range 1000 feet
  • Output 4-20mA or RS-232/RS-485 Modbus
  • 19" Rackmount

 

Absolute           High Resolution

DSU2000.PDF

  • 8 Channels
  • 0.05% Accuracy
  • Update Rate 1 Hz
  • Transmission Range 1000 feet
  • Output RS-485 Modbus
  • 4.5" Diameter Explosion-Proof Container

 

Absolute           High Resolution

DSU2100.PDF

  • 4 Channels
  • 0.05% Accuracy
  • Update Rate 1 Hz
  • Transmission Range 1000 feet
  • Output RS-485 Modbus
  • 3.5" Diameter Explosion-Proof Container

 

Dynamic           High Frequency Response

DSC1200.PDF

  • 4 - 8 Channels
  • Frequency Response 2 Hz to 5 kHz (3dB down); 10 Hz to 4 kHz +/- 0.4 dB
  • Dynamic Range 45 dB
  • 3% Accuracy
  • Transmission Range 1000 feet
  • Output +/- 5 V
  • 19" Rackmount

 


 

Cable Systems

 

Jumper Cables

JC1200.PDF

 

  • Simple or Duplex
  • DX-Rated or Armored
  • Pigtailed or Connectorized

Home Run Cables

HR1200.PDF

 

  • Two, Eight, Twelve, Eighteen, Thirty-Six, and Forty-Eight Strand
  • DX-Rated or Armored
  • Pigtailed or Connectorized

Junction Boxes

JB1200.PDF

 

  • Various Sizes
  • Fusion Splice or Bulkhead

 



Power Generation Application Notes

See the following application notes for power generation and industrial engine applications of fiber optics sensing systems.

  • Gas Turbine Combustion Dynamics Monitoring

  • Aeroderivative Turbine Monitoring

  • Reciprocating Compressors

  • Industrial Engines

 

DAVIDSON INSTRUMENTS - 8301 NEW TRAILS DRIVE - THE WOODLANDS, TEXAS 77381 - 877-656-4900

 

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