Dytran Instruments model 3262C ultrahigh-temperature accelerometer
Dytran Instruments has released the model 3262C — a high-temperature differential output accelerometer that operates at up to 649°C and can survive temperature excursions up to 760°C.
Each aspect of the product is designed for high performance and extended durability in harsh high-temperature environments. The case isolation, cooling channel, hermetically sealed super alloy Inconel 600 housing and Silver Window technology make it suitable for permanent vibration monitoring of gas turbine engines, space applications, nuclear applications, and gas and steam turbine power plants.
The ‘Silver Window’ on top of the accelerometer housing allows diffused oxygen molecules to pass through at high temperatures, replenishing oxygen to the piezoelectric crystals while maintaining the hermetic seal integrity. This innovative feature assures continued high-temperature operation with minimal loss of piezoelectric crystal insulation resistance due to oxygen deprivation.
The crystal design topology allows the product to exist in rapidly changing thermal environments by exhibiting a high resistance to thermal shocks. The internal components are made from high-temperature alloys that are ‘tuned’ to match the thermal coefficients of expansion to stabilise temperature response characteristics. The sensing element is electrically isolated from the external case to avoid signal ground loop interference.
Basic sensitivity is 5 pC/g and the frequency response is ±10% to 5 kHz. The device features an integral hardline cable designed to survive harsh environments.
Phone: 07 3868 4255
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