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PCB Piezotronics, Inc. (PCB®) announces the release ofthe new Series 137B quartz, free-field, ICP® blast pressure pencil probe that provides 2 significant user advantages: a more reliable signal and a distortion-free measurement.  Demand for the new pressure sensor was spurred by PCB’s test engineer customers at weapons and armaments research and evaluation ranges.  Typical applications for the new pencil probe design involve environments that are subject to severe mechanical shock. 

To address the need for signal reliability and measurement accuracy in such a volatile, high shock environment, the new pencil probe technology has been re-engineered to include a 10-32 coaxial jack connector.  “Pencil probes are designed to measure blast pressure caused from explosions in air, where severe shock is present,” said Chris Miller, Business Development Manager for Aerospace & Defense at PCB®.  “The new connector is very reliable in areas of shock, and allows the pressure sensor to be used in more creative ways.” 

Because of its unique pencil shape, the Series 137B ICP® blast pressure sensor continues to measure without reflections unlike skimmer plates.  Miller went on to say, “Another exciting design improvement is the new single piece body that aids in probe alignment, compared to the legacy three-piece design.  Better alignment leads to more accurate measurements and helps blast test engineers ensure warfighters have the proper capabilities for success.”

Highlights of ICP® blast pressure pencil probes include:

  • Quartz sensing elements that provide micro-second response time and resonant frequency above 400k Hz
  • Fully amplified ICP® technology allowing the output signal to travel over long distances
  • Measurement capability of blast pressure to obtain peak values and total impulse
  • Shock wave and time-of-arrival measurement

For technical information, please contact Chris Miller, Business Development Manager, telephone 866-816-8892, email:

About Aerospace & Defense Division

PCB®‘s Aerospace & Defense specializes in products and programs developed exclusively for the global aerospace, civil and military aviation, defense, homeland security and test & measurement markets. Products include space-rated high temperature and high-G shock accelerometers; space-qualified hardware; sensors and instrumentation for Health and Usage Monitoring Systems (HUMS), for UAV’s, helicopters, fixed wing aircraft and ground vehicles; system electronics; combustion monitoring pressure sensors; high temperature engine vibration monitoring sensors; launch and separation shock sensors; Active Noise Cancellation products; and aircraft hydraulic pressure sensors, among others. Typical applications include vibration and fatigue testing; qualification testing; aircraft and engine ground testing, flutter and flight testing; blast pressure and hydraulic system pressure measurements; structural dynamics; engine vibration monitoring; launch and separation shock studies; pressure, wind tunnel and aerodynamic studies; aircraft and ground vehicle prognostics; and noise cancellation applications. For more information visit

About PCB® Piezotronics

PCB® Piezotronics, Inc. is a global leader in the design and manufacture of force, torque, load, strain, pressure, acoustic and vibration sensors, as well as the pioneer of ICP® technology. From ready-to-ship stock products, to custom-made specials, PCB® proudly stands behind all products with services you value most, including 24-hour customer support, a strategic global distribution network, and the industry’s only commitment to Total Customer Satisfaction. For more information visit

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