Watson Industries Blog

Watson May Newsletter

WATSON INDUSTRIES, INC. A Woman-Owned Small Business Watson Industries designs, develops and manufactures precision instrumentation products for the transportation, telecommunications, oceanographic, scientific research, aerospace as well as many defense commercial industries. May Newsletter Watson Industries will be at booth #3260 at the AUVSI Xponential Convention. MAY 8-11 | KAY BAILEY HUTCHISON CONVENTION CENTER | DALLAS Come check out all of our new products. We can all say goodbye to winter and hello to spring. We can also say goodbye to our old ADS and VRS-S product configurations and welcome in our new ADS-C232-3AD vertical reference sensor. Customer feedback has included comments about the size and cost of our sensors. Some key benefits of the new sensor include a much smaller footprint, lower cost (as much as 50% in some cases), and analog/digital outputs all combined in a durable case. **NEW PRODUCT ALERT** ADS-C232-3AD Introducing the ADS-C232-3AD, Watson Industries newest sensor system! It is much smaller, less expensive and only weighs 2.1 ounces. It is also a fully functional vertical reference system that can serve as a replacement for a Watson VRS in most applications. The Watson Industries Dual Axis Vertical Reference System is a solid-state gyro package that measures angular displacement and rate, especially where dynamic motion may interfere. Under these conditions, the effects of lateral accelerations severely limit the performance of an ordinary accelerometer or pendulous device. The Watson Dual Axis Vertical Reference achieves exceptional performance by integrating the output of a vibrating structure gyro to get an estimate of the attitude, which is then compared to accelerometers to find the error. The error is filtered over a... read more

Accelerometers

In everyday language, acceleration is the term given to a state of increasing speed. It is the rate of change of velocity over time. Many people only associate acceleration with the increasing speed of a vehicle – we understand that if a car company claims its vehicle will go from “zero to 50 in five seconds,” they mean it accelerates from a static start to 50 miles an hour in five seconds. To calculate the rate of acceleration, we take the change in speed (velocity) and divide it by the time – 50/5, which works out at 10 miles per hour per second. In other words, every second that the car is driving it adds another 10 miles per hour to its speed. In physics, however, acceleration is much more than increasing speed. It also includes decreasing speed and changing direction. It can be calculated using Newton’s second law of motion, incorporating mass, force and using the formula Acceleration = Force x Mass. In other words, acceleration is the amount of force required to move an object (mass). How Do We Measure Acceleration? Measuring acceleration is more complicated than measuring speed because it needs to take into account how the speed changes over time. This is done using an accelerometer. An accelerometer is one of the most common types of inertial sensors and can measure acceleration in up to three orthogonal axes. They have three typical uses: To record the inertial measurement of position and velocity To sense tilt, orientation or inclination To sense impact or shock Not too long ago, accelerometers were only found on large commercial airliners or... read more

Magnetometers

Magnetic materials are those that distort magnetic flux lines. Some materials do this because they have high magnetic conductivity, while others, such as magnetite, have magnetic fields all of their own. Magnetism varies from place to place. This variation is caused by the different nature and composition of rocks, for example, or the interaction between the magnetosphere (the region of Earth’s magnetic influence) and charged particles from the sun. A magnetometer is a scientific instrument used to measure the strength and/or direction of magnetic fields, as well as their orientation and direction. Over and above the more well-known and “traditional” uses of magnetometers – metal detectors, locating submarines and shipwrecks, compasses etc. – there are many other fascinating applications for these amazing instruments. Medical Magnetometers Our hearts and brains generate their own magnetic fields. An amazing piece of equipment known as a superconducting quantum interference device (SQUID) is a magnetometer used to detect and measure the magnetic fields generated by electric current. Used in conjunction with an MRI machine, doctors can use the SQUID to transpose magnetic field signals over specific areas of the brain, helping them to diagnose epilepsy and Alzheimer’s. SQUID magnetometers are also used to detect depolarization and repolarization of heart muscle, and can diagnose and treat dysrhythmias, which can be potentially life threatening. The same magnetometer is used by obstetricians to assess fetal heart conditions, and by specialists to diagnose gastroenterological disorders. Smartphones, Tablets and PCs Over half a billion magnetic compass sensors for mobile phones were sold in 2013 – compared to 8.7 million in 2008. A navigation function is fast becoming the latest... read more

Design 003

Charge Amplifier with Stable Gain and Phase This new design provides near ideal response from 2 kHz to 200 kHz in both gain and phase. Useful... read more