BRUEL KJAER MEASURING VIBRATION PDF

Use as speed sensor and phase reference sensor Measurement of speed, rotational direction and zero speed detection show less Cable length above m in Ex ia IIC installations possible With the newest ATEX supplement of the EC-Type-Examination Certificate of our eddy current displacement sensor Series ds it is possible to realize longer cable length for intrinsically safe installations. The stated Co and Lo refer to the maximum capacity and inductivity which are allowed to be connected to the energy-limiting device safety barrier or isolating amplifier. Whereas the values Li and Ci denote the capacity and inductivity of the field equipment that is supposed to be connected to the energy-limiting device. In the present case these are the values of the driver od which are stated in its EC-Type-Examination Certificate. Beside the characteristics of the field equipment one has for the calculation of the maximum permissible length to take into account the capacity of the signal cable Cc and its inductivity Lc. Limiting requirements for the maximum cable length result typically from the inequality of the capacities.

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Use as speed sensor and phase reference sensor Measurement of speed, rotational direction and zero speed detection show less Cable length above m in Ex ia IIC installations possible With the newest ATEX supplement of the EC-Type-Examination Certificate of our eddy current displacement sensor Series ds it is possible to realize longer cable length for intrinsically safe installations.

The stated Co and Lo refer to the maximum capacity and inductivity which are allowed to be connected to the energy-limiting device safety barrier or isolating amplifier. Whereas the values Li and Ci denote the capacity and inductivity of the field equipment that is supposed to be connected to the energy-limiting device.

In the present case these are the values of the driver od which are stated in its EC-Type-Examination Certificate. Beside the characteristics of the field equipment one has for the calculation of the maximum permissible length to take into account the capacity of the signal cable Cc and its inductivity Lc.

Limiting requirements for the maximum cable length result typically from the inequality of the capacities. For a given application the values of the driver Ci and the energy-limitting device Co are known. For IIC gases these are normally so low that halving of the values led to a restriction of the permissible cable length to a magnitude of m.

Eddy current displacement sensors with integrated design have a built-in driver electronic within their probe housing including all components of the tuned oscillating circuit. To ensure complete satisfaction with the choice you make, we recommend that you discuss your application with our specialists to confirm that the appropriate design and type is selected. Sensors are the "fingertip" in any vibration measuring system. They are the determining factor for its success.

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BRUEL KJAER MEASURING VIBRATION PDF

Accept We use cookies to ensure our website works properly, to measure traffic, and to collect user statistics that will enable us to make our site more user-friendly. ISO is the most often used standard for this purpose. While the on-road subjective assessment brurl more realistic ratings of seat vibration quality, it is not cost-effective and does not provide the subjects with the possibility of back-to-back comparisons, that is, comparing two or more different seats, one after another, within the same experimental session. Subscribe to Waves and get the stories from the world of sound and vibration. But how do we test the overall comfort quality of seats?

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