TEST & MEASUREMENT FEATURE


CONTROL DEVICE COMMUNICATES WITH DRIVER A control device (CD) has been designed to control the electronics and distribute power to each module. Besides the CD, a voltage rectifier and a driver control box have been installed. Thanks to the electronic circuit implemented and the use of CX22B-W digital outputs, four different statuses have been established in order to notify the driver of the different ADAQ phases. This is made possible by two LEDs installed on the vehicle dashboard.


AUTONOMOUS DATA TRANSFER AND ANALYSIS Once the data has been recorded and saved to the CX22B-W memory card, it is uploaded to the SEAT server for subsequent computer analysis. Thanks to programmed commands and a previously configured AdHoc network, the CX22B-W is able to upload the data autonomously to another laptop in the circuit pit. This laptop sends the data to the SEAT servers overnight. A specific application will subsequently perform the analysis on the preselected channels and generate the required report - all totally autonomously.


HBM www.hbm.com


Above: Four different statuses notify of different ADAQ sequences. Below: The data transfer flow from the car to the SEAT Technical Centre


pressure sensors KELLER (UK) Ltd.


Dorset Green Technology Park, Winfrith Newburgh, Dorchester, DT2 8ZB UK and Ireland: T. 0845 643 2855 F. 0845 643 2866 E-Mail: sales@keller-pressure.co.uk Web: www.keller-pressure.co.uk www.keller-druck.com


PIEZORESISTIVE OEM PRESSURE


TRANSMITTER 4 LD9LD WITH I²C INTERFACE AND EMBEDDED SIGNAL CONDITIONING


 No external components


 Ranges 01 bar thru to 0200 bar  Accuracy, error band +/- 0,5%, 050 °C


 Sizes Ø 11 m, 15 mm, 17 mm, 19 mm bar  Very low power consumption


PRECISION PRESSURE TRANSMITTER 33 X


 Ranges 00,2 bar thru to 01000 bar, adjustable  Output signals: 420 mA, 010 V, RS485 Digital  Mathematical on-board error correction  Accuracy, error band 0,1 %FS, 1040 °C  Optional enhanced precision to ±0,01 %FS


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