Crossbow Technology CXM539 Page 2 User Manual Download

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©1999-2000 Crossbow Technology, Inc. All rights reserved. Information
in this document is subject to change without notice.

Crossbow and SoftSensor are registered trademarks and DMU is a
trademark of Crossbow Technology, Inc. Other product and trade names
are trademarks or registered trademarks of their respective holders.

SUNSTAR传感与控制 http://www.sensor-ic.com/ TEL:0755-83376549 FAX:0755-83376182 E-MAIL:[email protected]

SUNSTAR自动化 http://www.sensor-ic.com/ TEL: 0755-83376489 FAX:0755-83376182 E-MAIL:[email protected]

Summary of Contents for CXM539

Page 1: ...website www xbow com CXM539 User s Manual High Speed Digital 3 Axis Fluxgate Magnetometer Revision 1 2 October 2001 PN 6001 0014 SUNSTAR传感与控制 http www sensor ic com TEL 0755 83376549 FAX 0755 83376182 E MAIL szss20 163 com SUNSTAR自动化 http www sensor ic com TEL 0755 83376489 FAX 0755 83376182 E MAIL szss20 163 com ...

Page 2: ...istered trademarks and DMU is a trademark of Crossbow Technology Inc Other product and trade names are trademarks or registered trademarks of their respective holders SUNSTAR传感与控制 http www sensor ic com TEL 0755 83376549 FAX 0755 83376182 E MAIL szss20 163 com SUNSTAR自动化 http www sensor ic com TEL 0755 83376489 FAX 0755 83376182 E MAIL szss20 163 com ...

Page 3: ...Commands available in all modes 11 6 2 Calibration Commands only available in config mode 12 6 3 EEROM Map 12 6 4 Software Data Correction Equations 14 7 Appendix B Filter Values and Data Rates 15 8 Appendix C Warranty and Support Information 16 8 1 Customer Service 16 8 2 Contact Directory 16 8 3 Return Procedure 16 8 4 Warranty 17 SUNSTAR传感与控制 http www sensor ic com TEL 0755 83376549 FAX 0755 83...

Page 4: ...e significant meaning to the user M WARNING The user should pay particular attention to this symbol It means there is a chance that physical harm could happen to either the person or the equipment The following paragraph heading formatting is used in this manual 1 Heading 1 1 1 Heading 2 1 1 1 Heading 3 Normal SUNSTAR传感与控制 http www sensor ic com TEL 0755 83376549 FAX 0755 83376182 E MAIL szss20 16...

Page 5: ...the system is 1 2 counts The CXM539 system is ideally suited to situations where high speed magnetic data must be acquired and analyzed In the past such systems have normally used a combination of an analog output fluxgate and an A to D board in a PC The CXM539 simplifies and reduces the cost of the magnetic data acquisition system by eliminating the cumbersome A to D board The CXM539 can be used ...

Page 6: ... 5 Linearity 0 1 full scale Maximum data transfer speed 38 400 baud 250 3 axis samples sec Power 100 ma 6 to 15 VDC A to D 3 16 bit Sigma Delta Baud rate user selectable 300 1200 2400 4800 9600 19200 38400 72800 Temperature range 25 to 70 C Size 1 60 W x 4 08 L x 1 13 H 4 cm x 10 4 cm x 2 9 cm Connector 9 pin nonmagnetic D female SUNSTAR传感与控制 http www sensor ic com TEL 0755 83376549 FAX 0755 83376...

Page 7: ...0 The data words employ 8 bits with one stop bit and no parity A female 9 pin D connector is used to provide an electrical interface to the CXM539 system The Pin out of this connector is as follows Pin Function 1 not used 2 RS 232 out 3 RS 232 in 4 not used 5 ground 6 TTL serial out 7 TTL serial in 8 configure 9 V in 7 5 V to 15 V A drawing showing the dimensions and mounting hole design of the CX...

Page 8: ...10 2 8 cm 4 08 10 4 cm 3 32 8 4 cm 1 125 2 9 cm 1 Fig 1 CXM539 High Speed Digital 3 Axis Fluxgate Magnetometer SUNSTAR传感与控制 http www sensor ic com TEL 0755 83376549 FAX 0755 83376182 E MAIL szss20 163 com SUNSTAR自动化 http www sensor ic com TEL 0755 83376489 FAX 0755 83376182 E MAIL szss20 163 com ...

Page 9: ... the PC e g Windows HyperTerminal PC Plus etc Configure the terminal emulator program for direct connect to an available com port and select the baud rate 9600 with one stop bit and no parity On the electrical interface to the system ground pin 8 this will put the system in configure mode and assure that the baud rate is 9600 baud If a connection box is used select the config option on the connect...

Page 10: ...is required The output of the CXM539 in the calibrated mode M C is only valid in the run and auto modes 4 2 System Checkout After the CXM539 is operational and communicating with a computer its proper operation can be qualitatively checked out by using it to measure the earth s magnetic field Around the globe the magnitude of the earth s magnetic field varies from about 0 4 Gauss to 0 6 Gauss In t...

Page 11: ...the A command the terminal output will display the continuous output from the CXM539 Orient the system in the earth s magnetic field to verify proper operation as discussed above SUNSTAR传感与控制 http www sensor ic com TEL 0755 83376549 FAX 0755 83376182 E MAIL szss20 163 com SUNSTAR自动化 http www sensor ic com TEL 0755 83376489 FAX 0755 83376182 E MAIL szss20 163 com ...

Page 12: ...them are as follows Commands Data Formats to set up M T Raw data in a text hex format without a checksum M R X Y Z M N 1234 5678 9ABC CR LF The X Y Z values are encoded as four digit hex values separated from each other with a single space The last digit of the Z data is followed by a carriage and a line feed M T Raw data in a text hex format with a checksum cs M R X Y Z cs M E 1234 5678 9ABC 4E C...

Page 13: ...igits in the X Y Z data values M B Raw Data in a binary format without a checksum M R X Y Z SB M N 12 34 56 78 9A BC 5A CR LF The X Y Z values are each encoded as a two byte value The X Y Z data is followed by a constant synchronization byte SB of 5A M B Raw data in a binary format with a checksum M R X Y Z cs SB M E 12 34 56 78 9A BC AE 5A CR LF P IMPORTANT When in Binary mode the X Y Z values fo...

Page 14: ...g values are set by commands of the form P XXXX CR LF The filter value for A D can be set and the data rate can be accordingly changed by F XXXX CR LF Different filter values and corresponding data rates resolution and frequency are provided in Appendix B The user can set the baud rate of the CXM539 to the standard values from 300 to 76800 baud The baud rate command is of the form B XXXX CR LF A c...

Page 15: ...Data M N Don t Send a checksum A Start Auto Send Data S Stop Auto Send D Send the current Data Value B Send the run mode Baud Rate B Set Run Mode Baud Rate 300 76800 Baud is accepted In Config Mode the baud rate is always 9600 P Display the current pacing value P Set a Pacing value to slow the data rate E Send All EEROM Data E Send EEROM Data followed by 4 hex digits address and optional 2 digits ...

Page 16: ...ficant byte is stored in the highest address 00 Not Used 01 CPU Clock Speed Divisor 1 7 Clock Divisor 8 0 Run at Full clock speed 1 Enable clock division CPU Speed 4 9152 MHz 129 ClockDivisor This used to allow the use of lower UART baud rates and Lower power consumption For example 300 baud could be used with the Clock Divisor set to 125 to divide the clock rate by 4 and the baud rate control reg...

Page 17: ...ateControl 1 Values for Common Baud Rates with no clock dividing 1200 255 FFH 19200 31 1FH 2400 127 7FH 38400 7 7H 9600 63 3FH 76800 3 3H 05 Not Used 06 07 Soft Offset X 08 09 Soft Offset Y 0A 0B Soft Offset Z 0C 0D Soft Scale X 0E 0F Soft Scale Y 10 11 Soft Scale Z 12 13 Soft Ortho XY 14 15 Soft Ortho XZ 16 17 Soft Ortho YX 18 19 Soft Ortho YZ 1A 1B Soft Ortho ZX 1C 1D Soft Ortho ZY SUNSTAR传感与控制 ...

Page 18: ... Set for Data Rate Vs Data Noise 01 FAST Mode Enabled 02 Skip Mode Enabled 03 Chop Mode Enabled 04 Must Be 0 05 16 12 bit Sync Filter 6 4 Software Data Correction Equations Xout Xin XOffset XScale 32768 Yin YOffset YScale 32768 YOrtho Zin ZOffset ZScale 32768 ZOrtho 65536 Yout Yin YOffset YScale 32768 Xin XOffset XScale 32768 XOrtho Zin ZOffset ZScale 32768 ZOrtho 65536 Zout Zin ZOffset ZScale 327...

Page 19: ...4 8 2000 240 370 548 600 16 5 157 1800 240 370 548 800 16 209 1000 240 370 548 1200 15 5 314 900 240 370 548 1600 15 419 2 800 240 370 548 2400 14 629 600 240 370 548 3200 13 838 4 400 240 370 548 4800 12 1260 300 240 370 548 6400 11 1676 X NOTE For the text data hex data was sent the data sample length was 16 bytes and hence the baud rate will limit the data rate to 240 samples sec For binary dat...

Page 20: ...ited States Phone 1 408 965 3300 7 AM to 7 PM PST Fax 1 408 324 4840 24 hours Email techsupport xbow com Non U S refer to website www xbow com 8 3 Return Procedure 8 3 1 Authorization Before returning any equipment please contact Crossbow to obtain a Returned Material Authorization number RMA Be ready to provide the following information when requesting a RMA Name Address Telephone Fax Email Equip...

Page 21: ...adequate padding and protection 8 3 3 Sealing the Container Seal the shipping container s with heavy tape or metal bands strong enough to handle the weight of the equipment and the container 8 3 4 Marking Please write the words FRAGILE DELICATE INSTRUMENT in several places on the outside of the shipping container s In all correspondence please refer to the equipment by the model number the serial ...

Page 22: ...SUNSTAR传感与控制 http www sensor ic com TEL 0755 83376549 FAX 0755 83376182 E MAIL szss20 163 com SUNSTAR自动化 http www sensor ic com TEL 0755 83376489 FAX 0755 83376182 E MAIL szss20 163 com ...

Page 23: ...Phone 408 965 3300 Fax 408 324 4840 Email info xbow com Website www xbow com SUNSTAR传感与控制 http www sensor ic com TEL 0755 83376549 FAX 0755 83376182 E MAIL szss20 163 com SUNSTAR自动化 http www sensor ic com TEL 0755 83376489 FAX 0755 83376182 E MAIL szss20 163 com ...

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