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3DM

®

-GX5-10

User Manual

1.

System Family Overview

The LORD Sensing 3DM-GX5 family of industrial-grade inertial sensors provides a wide range of triaxial

inertial measurements and computed attitude and navigation solutions.

In all models, the Inertial Measurement Unit (IMU) includes direct measurement of acceleration and

angular rate, and some also offer atmospheric pressure readings. In models that include a Kalman Filter,

sensor measurements are processed through an Extended Kalman Filter (EKF) to produce highly

accurate computed outputs. The 3DM-GX5 features include extremely stable and low-noise gyros, a new

accelerometer with noise densities as low as 25 µg/√Hz, and a multi-constellation GNSS receiver. The M7

and M4 dual Cortex processors run a new Auto-Adaptive EKF.  The Kalman filter enables compensation

for magnetic and linear acceleration anomalies as applicable to the model. It also provides sensor bias

tracking, auto-zero update options (ZUPT), and user adjustable sensor noise factors. All sensors are fully

temperature-compensated and calibrated over the full operating temperature range.

The use of Micro-Electro-Mechanical System (MEMS) technology allows for small, lightweight devices.

Sensors are integrated into customer systems using serial communication protocols such as RS422,

RS232 and USB. The LORD Sensing MIP Monitor software can be used for device configuration, real

time measurement monitoring, and data recording. The LORD Sensing MIP Data Communications

Protocol (DCP) that is used to communicate with LORD Sensing inertial sensors is also available for users

who want to develop customized software solutions. Because of the unified set of commands across the

sensor family, it is easy to migrate code from one inertial sensor to another.

Common applications of LORD Sensing inertial sensor products include vehicle health monitoring,

platform stabilization, down- hole and drilling operations, and inertial navigation systems such as

unmanned air and ground vehicles and personal navigation systems.

5

Summary of Contents for 3DM-GX5 Series

Page 1: ...LORD USER MANUAL 3DM GX5 10 Inertial Measurement Unit IMU...

Page 2: ...2017 LORD Corporation 3DM 3DM DH 3DM DH3 3DM GX2 Ask Us How DEMOD DC DVRT EmbedSense FAS A G Link Little Sensors Big Ideas LORD Microstrain Live Connect LXRS MathEngine MicroStrain MXRS Node Commander...

Page 3: ...Sensor Communication 13 3 5 Sensor Settings 15 3 5 1 Saving Configurations 15 3 6 Data Monitoring and Recording 17 3 7 View Recorded Data 18 4 Sensor Measurements 20 4 1 Direct Sensor Measurements IM...

Page 4: ...2 Sensor Wiring 31 7 3 Sampling on Start up 33 7 4 Connecting to a Datalogger 34 7 5 Using Wireless Adapters 34 8 Troubleshooting 35 8 1 Troubleshooting Guide 35 8 2 Repair and Calibration 38 8 3 Tec...

Page 5: ...bias tracking auto zero update options ZUPT and user adjustable sensor noise factors All sensors are fully temperature compensated and calibrated over the full operating temperature range The use of M...

Page 6: ...athematically aligned to an orthogonal coordinate system The combination of sensors and environmental compensation allows the 3DM GX5 10 to perform well in a wide variety of applications that require...

Page 7: ...ries additional system products and ordering information see Parts and Configurations on page 40 Item Description Model LORD Sensing Part Number Included with Sensor Purchase A 3DM GX5 10 InertialSens...

Page 8: ...0 include a device status indicator and the device information label The table below describes the basic status indicator behavior The device information label includes the sensor frame diagram axis o...

Page 9: ...Communications Protocol DCP to write custom software applications with expanded or specific feature sets needed for the application MIP Monitor includes a message building tool that can be used to str...

Page 10: ...r software installation menu at https www microstrain com software 2 Download and open the MIP Monitor zip file 3 Run the setup exe file and follow the on screen prompts to completion 4 Download and o...

Page 11: ...er supplies within the operating range of the sensor or damage or injury could result Once power is applied the sensor is on and active see Specifications on page 1 To acquire sensor data the followin...

Page 12: ...header row menu includes selections for data sampling recording device settings opening windows selecting which open window to view and advanced features such as selecting the communications mode The...

Page 13: ...atus indicator is on 2 Open the MIP Monitor software 3 The sensor should appear in the device list automatically when the software is running The list includes the device information and communication...

Page 14: ...3DM GX5 10 User Manual availability When commands are sent to the sensor the software will automatically connect to it before sending the message 14...

Page 15: ...ton Enable the context sensitive help menu for explanations of specific settings Figure 9 Device Settings Menu 3 5 1 Saving Configurations Sensor settings are saved temporarily by selecting the OK but...

Page 16: ...3DM GX5 10 User Manual Figure 10 Save Sensor Settings 16...

Page 17: ...recorded see Sensor Settings on page 15 Data streaming must be started in order for data to be recorded however it is not necessary to view it in a data monitoring window Data monitoring is used prima...

Page 18: ...Office or other CSV editors and spreadsheet programs Data recorded in Binary format requires a translation program utilizing the LORD Sensing MIP Data Communications Protocol DCP to make it user read...

Page 19: ...MIP Data Communications Protocol DCP to make it user readable Figure 13 Data Recording 4 To end recording press the Arm Recording button again and select OK in the confirmation prompt window 5 Select...

Page 20: ...e Inertial Measurement Unit IMU and include tri axial gyroscopes gyros and tri axial accelerometers This technology provides direct measurements of acceleration angular rate Delta theta change in angu...

Page 21: ...ematically aligned to an orthogonal coordinate system The IMU sensors can be read directly to report stand alone inertial measurements or computed measurements Because the sensor system is digital the...

Page 22: ...ons on page 9 Measurement Units Description Acceleration gravitational force g three axis acceleration readings in engineering units Angular Rate radian second three axis rotational velocity reading f...

Page 23: ...reference ellipsoid Latitude ranges from 90 degrees at the South Pole to 90 degrees at the North Pole Longitude ranges from 180 to 180 degrees with 0 degrees being the prime meridian The 180 180 degre...

Page 24: ...North vector along the line of longitude the East vector along the line of latitude and the Down vector normal to and towards the tangent plane Figure 17 North East Down Frame The assumption when usin...

Page 25: ...xis goes through the bottom of the sensor outward These axes were selected so that when the connector on the device is pointed north and the device is upright and level the sensor frame will match the...

Page 26: ...t the gyroscope baseline place the sensor or sensor platform in the desired home position Allow 2 3 minutes for the sensor to warm up and for the temperature to stabilize for the best bias capture Sel...

Page 27: ...opped data packets Most computer RS232 ports are limited to 115 200 baud even though the 3DM GX5 10 is capable of running at 921 600 baud 5 4 IMU Sensor Calibration All of the internal sensors in the...

Page 28: ...import the sensor settings select the sensor name in the MIP Monitor software main window then select Settings Import Settings then follow the prompt to choose where the file will be saved and name th...

Page 29: ...d thread lock are recommended There are two additional holes used for precise alignment with 2mm dowel pins One of the holes is slotted to allow for relaxed pin positioning accuracy The sensor can be...

Page 30: ...format The commands and data are divided into four command sets and three data sets corresponding to the internal architecture of the device The protocol is packet based All commands replies and data...

Page 31: ...Packet Builder The sensor must be in the Standard communications mode to use this feature Figure 22 Packet Builder 7 2 Sensor Wiring Only use power supplies within the operating range of the sensor or...

Page 32: ...erence Diagrams on page 1 The connector interface includes connections for USB and RS232 communications only connect one two options for sensor input power range only connect one and a precision hardw...

Page 33: ...ct 3DM GX5 10 and then select document from the list NOTE When setting the sensor to begin sampling on start up verify that the sensor is sampling by reading the status indicator on the device see Int...

Page 34: ...on page 39 7 5 Using Wireless Adapters In some applications it can be very useful to set up wireless communications between the sensor to the host computer One way this can be accomplished is by conn...

Page 35: ...3DM GX5 10 User Manual 8 Troubleshooting 8 1 Troubleshooting Guide 35...

Page 36: ...nical Support on page 39 2 COMMUNICATION no communication to sensor 2 1 sensor not found in MIP Monitor In MIP Monitor use the Refresh button to look for the sensor again If the sensor is still not fo...

Page 37: ...ing If the sensor is not streaming data activate it in the software 3 3 sensor data not recorded Verify data recording has been activated In MIP Monitor the device status information field will indica...

Page 38: ...RD Sensing Warranty Repairs LORD Sensing warrants its products to be free from defective material and workmanship for a period of one 1 year from the original date of purchase LORD Sensing will repair...

Page 39: ...http www microstrain com support_overview aspx For further assistance our technical support engineers are available to help with technical and applications questions Technical Support sensing_support...

Page 40: ...D Sensing Sales Department Table 3 Model Numbers describes the standard models available at the time this manual was published Once a model is selected the part number is further defined by desired co...

Page 41: ...nual The same options are available in each model and are indicated in the last four digits of the product part number For a list of the starter kit contents see Components on page 1 Figure 25 Standar...

Page 42: ...ies Description Manufacturer part number A Series or P Series 9 pin male Micro D connector Ulti Mate PR09N05 Table 5 Sensor Mating Connector 9 3 Sales Support Products can be ordered directly from the...

Page 43: ...04 mg 8 hr Initial bias error 0 002 g 0 04 sec Scale factor stability 0 03 0 05 Noise density 25 g Hz 2 g 0 005 sec Hz 300 sec Alignment error 0 05 0 05 Adjustable bandwidth 225 Hz max 250 Hz max Offs...

Page 44: ...sical Specifications Dimensions 36 0 mm x 36 6 mm x 11 1 mm Weight 16 5 grams Enclosure material Aluminum Regulatory compliance ROHS CE Integration Connectors Data power output micro DB9 Software MIP...

Page 45: ...ate injury to workers and or the general public Situations where a non immediate or potential hazard presents a risk to damage of property and equipment May be used to indicate important operational c...

Page 46: ...e technology refers to the ability of a filter to selectively trust a given measurement more or less based on a trust threshold when com pared to another measurement that is used as a reference Sensor...

Page 47: ...Complementary Filter CF A term commonly used for an algorithm that combines the readings from multiple sensors to produce a solution These filters typically contain simple filtering elements to smooth...

Page 48: ...describe the orientation of an object in space such as the x y and z or pitch roll and yaw Euler angles can also represent a sequence of three elemental rotations around the axes of a coordinate syste...

Page 49: ...he current mean and covariance to produces an estimate of a system s current state that is statistically more precise than what a single measurement could pro duce L LOS Line of Sight Describes the id...

Page 50: ...up or down with respect to the sensor or platform frame origin Position The spatial location of an object PVA acronym for Position Velocity Attitude Q Quaternion Mathematical notation for representing...

Page 51: ...ocess of taking measurements from a sensor or device Sampling rate rate at which the sensors are sampled Sampling Rate the frequency of sampling Sensor a device that physically or chemically reacts to...

Page 52: ...t to time Also called speed W WAAS Wide Area Augmentation System An air navigation aid developed to allow aircraft to rely on GPS for all phases of flight including pre cision approaches to any airpor...

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