Pressure
High Pressure Sensor
H-Series
GENERAL INFO
The H-Series sensors are piezoelectric sensors designed to measure the most demanding dynamic pressure changes with up to 8000 bar as observed in shock waves caused by explosions or fast pressure drops in various media. The unique gallium phosphate (GaPO4) single crystal sensing elements are characterized by superior sensitivity and linearity and are unaffected by temperature changes (no pyroelectricity). In combination with the high mechanical stiffness, the H-Series is well-suited for reliable dynamic high pressure measurements and allows for the detection of small pressure variations throughout the whole pressure range.
The front sealing housing with M10x1 mounting thread along with the clamp screw makes the sensors insensitive to different tightening torques and mounting conditions. The H-Series provides thus a versatile and easy to mount high pressure sensing solution with long term stability.
FEATURES
- Highpressure ranges with 2000, 6000 and 8000 bar
- Ideal for fast pressure gradients i.e. shock waves
- Outstanding temperature stability
- Highest durability and reliability
Under extreme pressure an extremely rigid sensor construction is required to prevent any disturbance due to hysteresis and the associated restoring forces. Piezocryst high-pressure sensors are based on special load-stable crystals cut in longitudinal effect with the lowest dependency of the sensor signal on pressure range. These sensors have a special Double Shell™ construction, which frees the sensor from disturbances within the installation environment. In addition, due to the extreme need for compressive strength and thermal shock independence, the membrane must be made of high-performance alloys with very narrow tolerances to ensure durability and signal quality. Another important factor in performance is the seal. Piezocryst has developed a special sealing system that will stay safely sealed under high-pressure gradients and mechanical shock, while distributing the resulting forces so that the Double Shell™ housing is not subject to interference. This gives measurement results in a new kind of data quality.
The product range includes pressure sensors for measuring ranges up to 2000, 6000 and 8000 bars. All of these sensors have an M10 thread, so that measurements of different pressure ranges within one bore are possible.
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