Dynamic Measurement with GPS

This week, we plan to complete our overview of the DMS-E series of dynamic measurement products, and transition to the DMS-S series. So, we will be comparing the DMS-EGP01 GPS enabled inertial measurement sensor to our DMS-SGP01. The DMS-EGP01 combines the triaxial angular rate and acceleration data of our DMS-E604 with a single GPS antenna, which provides an integrated velocity input. This velocity input greatly enhances the unit’s performance during highly dynamic maneuvers. The integrated GPS antenna also provides velocity and track heading outputs. The DMS-SGP01 is a smaller version of the DMS-EGP01, and also offers triaxial rate and acceleration data, and has a built-in single GPS antenna. Both are primarily used for automotive testing, vehicle dynamics, and marine applications. Both operate on the same basic principles. The difference between the DMS-E and DMS-S product lines are the size, price and quality of gyros that they use. Because of this, the DMS-E series is larger in size, but offers better dynamic accuracy and less noise. Use the links to view the product specifications for the DMS-EGP01 and...

Watson Dynamic Measurement Sensor

Watson Industries’ DMS-E604 is this week’s featured dynamic measurement product. This sensor is used worldwide in applications such as vehicle dynamic testing and pipeline maintenance telemetry. An extremely accurate error correction system utilizes a forward velocity input to compensate for long-term references during maneuvers and highly dynamic conditions. The DMS-E604 offers six accelerometer outputs along with three axis of angular rate. The X, Y and Z accelerometer outputs represent the accelerations in the plane of the vehicle body while the second set of three outputs measure the acceleration aligned with an earth-level coordinate system. This sensor package provides attitude and relative heading data as well. This unit is economical, reliable and easily configurable by the user. Digital design and solid-state construction allow Watson Industries to customize this unit to your unique requirements. Output signals are available in several formats to meet our customer’s specifications. For more information on Watson’s inertial measurement sensors and other products we manufacture, contact us via email or call...

Dynamic Measurement System

Watson Industries produces several Dynamic Measurement Systems (DMS) to meet the various needs of our customers. As mentioned in last week’s blog, we are continuing to highlight the different DMS units. Watson’s DMS-EGP02 is designed for applications where accurate heading is required but a magnetic compass is not feasible. The unit is equipped with triaxial angular rate and acceleration data outputs with a dual GPS antenna system that provides heading data even when the vehicle is not in motion. The addition of the antennas provides vehicle velocity data to the DMS that enhances the unit’s performance during dynamic maneuvers. The DMS-EGP02 is excellent for aerospace, land and ocean applications. Some uses include unmanned vehicles, heading reference, automotive testing, satellite tracking and surface navigation. To find more information about Watson’s inertial measurement sensors and other products we offer, contact us at...

Inertial Measurement Sensors

Last week we talked about the many different inertial measurement systems that Watson Industries manufactures. Over the next few weeks, we will be highlighting each of these systems individually. This week’s feature is the DMS-EGP01. Watson Industries DMS-EGP01 offers a single antenna GPS which was initially designed to be used in the testing of drive and handling characteristics of vehicles. Applications include skid pad and crash testing. The DMS-EGP01 operates in two heading modes. The first mode uses the GPS module to calculate gyro stabilized track heading. When a GPS signal is not available, the second mode will output relative heading. This unit also has two velocity input modes. The first uses the GPS module’s ground velocity to enhance the sensor’s performance during highly dynamic maneuvers such as sharp turns. The second mode is an analog velocity input for when a GPS signal is not available. During normal operation, the DMS outputs highly accurate inertial data. Data can be transmitted using several different methods including use of the RS-232 serial output. This output includes decimal and binary...

Inertial Measurement

Watson Industries offers a variety of inertial measurement devices to meet our customer’s requirements for land, ocean and aerospace programs. Applications include automotive testing and vehicle dynamics, marine, aircraft, pipeline maintenance telemetry, rail and track stabilization, and satellite tracking. Inertial measurement sensors are most useful in applications where magnetic fields make heading data from a fluxgate magnetometer unreliable. All Watson units demonstrate a high reliability and durability performance rate, which includes being vibration resistant and offer a solid-state strap down system. Our inertial measurement units include two dynamic measuring systems, the DMS-E604 and DMS-S605, which provide bank and elevation attitude along with leveled accelerometer outputs. The DMS-E604 offers more precision than the DMS-S605. Other Watson sensors include the DMS-EGP01 and DMS-SGP01, which offer an internal single antenna GPS receiver to provide dynamic corrections from velocity input and track heading output when in motion. The DMS-EGP01 offers more precision for those applications that require higher accuracy. The DMS-SGP02 is a dual antenna GPS system that provides a heading reference signal even while the unit is stationary. Its counterpart, the DMS-EGP02, also includes the dual antenna GPS system and acts as a fully static and dynamically capable attitude and heading reference system (AHRS) while receiving GPS...