Magnetometers PC BOARD LEVEL 3-AXIS FLUXGATE MAGNETOMETER ▼ Complete 3-axis System ▼ Measures Fields up to ± 0.7 Gauss (± 100 µT) ▼ Low Noise Level ± 6 nT ▼ Low Cost PC Board Configuration Applications ▼ OEM Magnetic Field Measuring ▼ Fluxgate Compass System CXM113 ▼ Magnetic Anomaly Detection The CXM113 is a complete 3-axis fluxgate magnetometer system packaged on a PC board of dimensions 2.5" x 2.5" x 0.75" (6.4cm x 6.4cm x 1.9cm). The system operates from an input voltage of ± 5 VDC. Current consumption is 28 mA @ +5 V and 7 mA @ -5 V. The system is connected by 6” long flying leads. ▼ magnetometers The CXM113 provides 3 analog output voltages proportional to the magnetic field magnitude measured in three orthogonal directions. The full-scale output is ± 2.8 volts; representing a magnetic field of ± 0.7 Gauss. Output scale factor is adjusted to an accuracy of 1%. The system noise level is ± 6 nT. As a magnetic compass, the CXM113 can provide direction accuracy better than 0.1º. ▼ 42 For magnetic anomaly detection applications, the low noise level of the CXM113 allows very small magnetic signatures to be measured. This enables signal detection at a large distance from the anomaly being measured. Range to the anomaly can be measured by using several CXM113s to record both field magnitude and field gradient. Range is proportional to the quotient of these quantities. A calibration sheet is provided with each unit giving data on zeros, scale factors, and orthogonality constants for each axis. This data enables an external correction of the output voltages to increase overall accuracy. Document Part Number: 6020-0015-01 Rev C c r o s s b o w t e c h n o l o g y, i n c ▼ 4145 n. first street ▼ san jose, ca 95134-2109 C Specifications CXM113 Performance Range (Gauss) Noise Level (nT) Frequency Response (Hz) Non-Linearity (% FS) Zero Drift with Temperature (mGauss/ºC) Scale Factor Drift with Temperature (% FS/ºC) Sensitivity (V/Gauss) Othogonality of Axes (°) Alignment of Axes w/ Package Reference Frame (°) Environment Operating Temperature (º C ) Electrical Power Physical Size Weight Leads ± 0.7 ± 6 (± 0.06 mGauss) DC to 400 (-3 dB) ± 2.0 < 0.1 < 0.1 4.00 ± 2.0 ± 2.0 Wire Color Red Black Blue Orange Yellow Green – 20 to + 70 + 5V @ 28 mA and -5 V @ 7 mA 2.5" x 2.5" x .75" (6.4 cm x 6.4 cm x 1.9 cm) 0.975 oz (30 gm) Flying leads 6" (15.24 cm) long Function +5 VDC Ground -5 VDC X-axis output Y-axis output Z-axis output Pin Diagram Specifications subject to change without notice X Magnetic Sensor Drive Electronics Y Magnetic Sensor Z Magnetic Sensor Signal Conditioning MX Signal Conditioning MY Signal Conditioning MZ Analog Output 3-Axis Magnetometer Board magnetometers ▼ The CXM113 is Calibrated Using a Precision 3-axis Helmholtz Coil Ordering Information Model Description CXM113 PC Board Level, 3-axis Fluxgate Magnetometer Document Part Number: 6020-0015-01 Rev C phone: 408.965.3300 ▼ fax: 408.324.4840 ▼ e-mail: [email protected] ▼ w e b : w w w. x b o w. c o m ▼ 43