Model 797R Radiation Resistant PiezoFET Accelerometer

Brand: Wilcoxon Sensing Technologies

Nuclear power plants utilizing vibration monitoring ensure continuous power generation and safety for personnel and equipment, while also helping to prevent radiation leaks into the environment. Expensive and crucial machinery including cold water feed pumps, pressurized water reactors, and steam generators can operate more efficiently as a result of condition monitoring. Wilcoxon’s radiation-hardened sensors meet specific requirements for reliability of monitoring equipment in nuclear evironments. 

The side-exit 797R mounts in any orientation and can be exposed to 1 x 10⁷ RADs without degradation of signal performance, making it ideal for nuclear environments.
Features
  • Rugged design
  • Hermetically sealed
  • ESD protected
  • Reverse wiring protection
  • Corrosion resistant
  • Ground isolated
  • Mounts in any condition
  • Radiation rated
  • Manufactured in an approved ISO 9001 facility

Specifications

Approvals & Certifications

  • CE

Circuit Protection

  • ESD Protection
  • Reverse Wiring Protection

Electrical Connectors

  • Cable (J9T2)
  • Output Connector: 2-Pin, MIL-C-5015 Style
  • R6 Typical

Element

  • Sensing Element Design: PZT, Shear

Enclosure, Body Material

  • 316L Stainless Steel

Environmental Protection

  • Corrosion-Proof

Frequency

  • Frequency Response (± 10 %): 2 to 7,000 Hz
  • Frequency Response (± 3 dB): 1 to 15,000 Hz
  • Frequency Response (± 5 %): 3 to 5,000 Hz
  • Resonance Frequency: 25 kHz

Mounting

  • 1/4-28 Captive Socket Head Screw

Mounting Position

  • Any Orientation

Noise

  • Electrical Noise, Equivalent G, Nominal (Broadband: 2.5 Hz to 25 kHz): 600 µg
  • Electrical Noise, Equivalent G, Nominal (Spectral: 10 Hz): 8.0 µg/√Hz
  • Electrical Noise, Equivalent G, Nominal (Spectral: 100 to 1,000 Hz): 5 µg/√Hz

Non-Linearity

  • Amplitude Non-Linearity: 1 %

Output Impedence

  • Maximum 100 Ω

Power Requirement

  • 18-28 Vdc
  • Current Regulating Diode: 2-10 mA

Range

  • Acceleration Range: 50 G Peak

Sensitivity

  • Base Strain Sensitivity: 0.002 G/μstrain
  • Sensitivity, ± 5 %, 25° C (77° F): 100 mV/g
  • Transverse Sensitivity: Max. 5 % of axial

Shock

  • Shock Limit: 5,000 G Peak

Temperature Range

  • -50° to 120° C (-58° to 248° F)

Vibration

  • Vibration Limit: 500 G Peak

Voltage

  • Bias Output Voltage: 12 Vdc
show more