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Sensors for Monitoring Combustion Instability in Gas Turbines

Pressure and vibration sensors for the most demanding gas turbine measurement
and monitoring requirements

For almost 50 years, PCB® has specialized in the design and manufacture of innovative sensors and measurement systems for the gas turbine market. In those five decades, our expertise in combustion dynamics instrumentation has met the industry's most demanding requirements for dynamic combustion measurement and turbine engine monitoring.

With the move toward increased fuel efficiency and lower exhaust emissions, today's gas turbine engines are based on technological innovation yet also bring potential problems. Burning a leaner flame keeps NOx emissions low but at the same time increases instability (combustion dynamics) in the gas turbine engine. This instability can damage components in the combustion chamber such as nozzles, baskets and transition pieces, as well as downstream components such as blades, resulting in downtime and loss of revenue.

Compare selected models ()
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Model 121A44

  • (for ±5V output)50 psi
  • (for ±5V output)344.8 kPa
  • (±15%)100 mV/psi
  • (±15%)14.5037 mV/kPa
  • (-5%)0.5 Hz
  • (-5%)0.5 Hz
  • >=60 kHz
  • >=60 kHz
  • 2-Pin MIL-C-5015
  • 2-Pin MIL-C-5015
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Model 176A02

  • 725 psi
  • 50 bar
  • (+/-20%)6 pC/psi
  • (+/-20%)87 pC/bar
  • (Continuous)-94 to 1200 °F
  • (Continuous)-70 to 650 °C
  • 2-Pin
  • 2-Pin
  • (with cable)4.6 oz
  • (with cable)130 gm
$3995.00 USD
(US Domestic Pricing Only)
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Model 176A03

  • 290 psi
  • 20 bar
  • (±20%)16 pC/psi
  • (±20%)232 pC/bar
  • (Continuous)1200 °F
  • (Continuous)650 °C
  • 2-Pin
  • 2-Pin
  • 17.6 oz
  • 500 gm
$4995.00 USD
(US Domestic Pricing Only)
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Model 176A04

  • 300 psi
  • 2070 kPa
  • (±20%)15.5 pC/psi
  • (±20%)2.25 pC/kPa
  • (Continuous)-65 to 662 °F
  • (Continuous)-54 to 350 °C
  • 2-Pin
  • 2-Pin
  • 3.9 oz
  • 122 g
$5995.00 USD
(US Domestic Pricing Only)
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Model 176A05

  • 75 psi
  • 5.2 bar
  • >=52 pC/psi
  • >=750 pC/bar
  • (Continuous)-94 to 968 °F
  • (Continuous)-70 to 520 °C
  • 2-Pin
  • 2-Pin
  • (with cable)9.35 oz
  • (with cable)265 gm
$3995.00 USD
(US Domestic Pricing Only)
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Model 176M03

  • 20 psi
  • 137.9 kPa
  • (±20%)17 pC/psi
  • (±20%)2.47 pC/kPa
  • (Continuous)986 °F
  • (Continuous)530 °C
  • 2-Pin
  • 2-Pin
  • (with clamp nut)4.9 oz
  • (with clamp nut)140 gm
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Model 176M07

  • 20 psi
  • 137.9 kPa
  • (±20%)17 pC/psi
  • (±20%)2.47 pC/kPa
  • (Continuous)986 °F
  • (Continuous)530 °C
  • 2-Pin
  • 2-Pin
  • 11.1 oz
  • 315 gm
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