Abstract: A vibration protection and condition monitoring system with true digital signal processing based design, with very limited analog based general signal conditioning and integrated specific sensor conditioning and sensor power supply options. In addition to the support for common Eddy Current Probe Systems (employing an external Driver), the device also supports direct connection of the Eddy Current Probe to the module, due to an built-in driver and linearization functionality. The system is a distributed system where the vibration protection and at least a part of the condition monitoring is in an intrinsically safe (IS) distributed unit located on or at the rotating machinery, even in hazardous areas.

Abstract: A vibration and condition monitoring system, with true digital signal processing based design, with very limited analog based general signal conditioning and integrated specific sensor conditioning in each module. In addition to the support for common eddy current probe systems, employing an external driver, the module also supports direct connection of an eddy current probe system to the module, due to a built-in driver and linearization functionality. Specific sensor signal conditioning is not dependent on hardware, but only on embedded software, firmware. There is full sensor input support in an I. S. environment. Not only the common sensor input types from accelerometer, velocity sensor, but also direct input for eddy current probe systems for both vibration and/or speed measurements. The module also comprises means to assess the type and correct functionality of an attached eddy current probe system (302, 303) by means of a frequency measurement and possibly an amplitude measurement.

Abstract: A vibration and condition monitoring system and the parts thereof with a true digital signal processing based design, with very limited analog based general signal conditioning. Specifically a method of driving and a driver of eddy current probes that have a simple highly accurate analog part and a unit and a method of enabling efficient vibration monitoring in hazardous areas. This is achieved by an eddy current probe oscillator unit having independent control of an amplitude gain and control of an impedance measurement sensitivity, i.e. amplitude gain linearity in relation to probe impedance.

Abstract: A vibration and condition monitoring system with true digital signal processing based design, with very limited analog based general signal conditioning and integrated specific sensor conditioning and sensor power supply options. The device supports direct connection of eddy current probe systems to the module, due to a built-in driver and linearization functionality. Linearization and compensation of a specific eddy current probe/cable system is done by measuring its far/infinite gap response. This response is then according to the invention recalculated into a linearization curve/transfer function. Specific sensor signal conditioning is not dependent on hardware, but only on embedded software (firmware). There is full sensor input support in an I.S. environment. Not only the common sensor input types from accelerometer, velocity sensor or eddy current probe system for both vibration and/or speed measurements.

Abstract: A vibration and condition monitoring system and the parts thereof with a true digital signal processing based design, with very limited analog based general signal conditioning. Specifically a method of driving and a driver of eddy current probes that have a simple highly accurate analog part and a unit and a method of enabling efficient vibration monitoring in hazardous areas. This is achieved by an eddy current probe oscillator unit having independent control of an amplitude gain and control of an impedance measurement sensitivity, i.e. amplitude gain linearity in relation to probe impedance.

Abstract: A vibration and condition monitoring system with true digital signal processing based design, with very limited analog based general signal conditioning and integrated specific sensor conditioning and sensor power supply options. The device supports direct connection of eddy current probe systems to the module, due to a built-in driver and linearization functionality. Linearization and compensation of a specific eddy current probe/cable system is done by measuring its far/infinite gap response. This response is then according to the invention recalculated into a linearization curve/transfer function. Specific sensor signal conditioning is not dependent on hardware, but only on embedded software (firmware). There is full sensor input support in an I.S. environment. Not only the common sensor input types from accelerometer, velocity sensor or eddy current probe system for both vibration and/or speed measurements.