ICP High Temperature Accelerometers
2015-12-10 01:53:19, PCB Piezotronics GmbH The ICP® High Temperature Accelerometers product brochure explains the special requirements that arise in high-temperature measurements and provides an overview of the uniaxial and triaxial accelerometers available specifically for this purpose.
After the market launch of the ICP® technology for piezoelectric sensors, the upper temperature limit was initially 121 °C. As development progressed, the use of special high-temperature amplifier electronics made 163 °C operating temperature possible. Currently, PCB Piezotronics introduces a triaxial ICP® vibration sensor model HT356B01/NC, which can be used for continuous operation at 180 °C.
In order to obtain stable measurement data over the entire temperature range, some of the sensors presented have the particularly temperature-stable sensor element material UHT-12™, which has an extremely low temperature coefficient.
Another special feature of some high-temperature sensors is the integrated low-pass filter, which suppresses resonance excitation of the sensor and associated saturation effects. Such excitations are caused by metallic impacts, for example during run-up tests on combustion engines. Like any structure, the sensor element of the accelerometer can be excited in its resonant frequency by these pulses, which can cause saturation of the amplifier in unfiltered models.
After the market launch of the ICP® technology for piezoelectric sensors, the upper temperature limit was initially 121 °C. As development progressed, the use of special high-temperature amplifier electronics made 163 °C operating temperature possible. Currently, PCB Piezotronics introduces a triaxial ICP® vibration sensor model HT356B01/NC, which can be used for continuous operation at 180 °C.
In order to obtain stable measurement data over the entire temperature range, some of the sensors presented have the particularly temperature-stable sensor element material UHT-12™, which has an extremely low temperature coefficient.
Another special feature of some high-temperature sensors is the integrated low-pass filter, which suppresses resonance excitation of the sensor and associated saturation effects. Such excitations are caused by metallic impacts, for example during run-up tests on combustion engines. Like any structure, the sensor element of the accelerometer can be excited in its resonant frequency by these pulses, which can cause saturation of the amplifier in unfiltered models.
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