Gyroscopic

It is used in gyroscopes, computer parts, and instruments where lightness, stiffness, and dimensional stability are required. The oxide has a very high melting point and is also used in nuclear work and ceramic applications. 

The lower molecular weight PCTFE oils, waxes, and greases are used as inert sealants and lubricants for equipment handling oxygen and other oxidative or corrosive media. Other uses include gyroscope flotation fluids and plasticizers for thermoplastics. 

For a three-axis system, three triangles in mutually perpendicular planes may be used. For navigational purposes, the output of the laser gyroscope may be integrated to determine the heading of an aircraft. Laser-based navigation systems have been in use on commercial and military aircraft since the early 1980s. 

Because of the very small bearing clearances in gas bearings, dust particles, moisture, and wear debris (from starting and stopping) should be kept to a minimum. Gas bearings have been used in precision spindles, gyroscopes, motor and turbine-driven circulators, compressors, fans, Brayton cycle turbomachinery, environmental simulation tables, and memory dmms. 

General Principles There are two main types of mass flowmeters (1) the so-called true mass flowmeter, which responds directly to mass flow rate, and (2) the inferential mass flowmeter, which commonly measures volume flow rate aud flmd density separately. A variety of types of true mass flowmeters have been developed, including the following (a) the Maguus-effect mass flowmeter, (b) the axial-flow, transverse-momentum mass flowmeter, (c) the radial-flow, transverse-momentum mass flowmeter, (d) the gyroscopic transverse-momentum mass flowmeter, aud (e) the thermal mass flowmeter. Type b is the basis for several commercial mass flowmeters, one version of which is briefly described here. 

Liquid-Solid Mixtures Liptak [Chem. Eng., 74(4), 151-158 (1967)] discusses a variety of techniques that can be used for the measurement of sohds-in-liquid suspensions or slurries. These include metering pumps, weigh tanks, magnetic flowmeter, ultrasonic flowmeter, gyroscope flowmeter, etc. 

Gyroscopic moments Drive torque Cyclic forces Oscillating torques... 

Kreisel, m. top gyroscope, -bewegung,/. motion of a top, gyroscopic motion, -brecher, m. rotary crusher, -elektron, n. spinning electron. 

Oil drilling becomes more accurate because of the gyroscopic clinograph that stabilizes the drill. 

Gyroscopic survey A directional survey conducted using a gyroscope for directional control, usually used where magnetic directional control cannot be obtained. 

Walk (of hole) The tendency of a wellbore to deviate in the horizontal plane. Wellbore survey calculation methods Refers to the mathematical methods and assumptions used in reconstructing the path of the wellbore and in generating the space curve path of the wellbore from inclination and direction angle measurements taken along the wellbore. These measurements are obtained from gyroscopic or magnetic instruments of either the single-shot or multishot type. 

Spindles, disks, and armatures of precision grinders gyroscopes. 

All of our experience and knowledge about the properties of moving baseballs (and billiard balls and rubber bands and automobiles and pendulums and gyroscopes) can be used in clarifying i the nature of heat, heat content, electrical energy, etc. To see this, we must consider how chemists discuss the energy held by a molecule. ... 

PlaCHE. K. O. Meclt. Eng. (March, 1979), 36. Coriolis/gyroscope flow meter. 

Abstract The techniques of atom cooling combined with the atom interferometry make possible the realization of very sensitive and accurate inertial sensors like gyroscopes or accelerometers. Below earth-base developments, the use of these techniques in space, as proposed in the HYPER project (ass.stud), should provide extremely-high sensitivity for research in fundamental physics. 

Cold atom gyroscope and application in space HYPER project... 

The measurement of the Lense-Thirring effect is the first scientific goal of the HYPER project (Fig. 3) and will be more detailed in this section. The Lense-Thirring effect consists of a precession of a local reference frame (realized by inertial gyroscopes) and a non-local one realized by pointing the direction of fixed stars. This Lense-Thirring precession is given by ... 

In addition to the whirling vibration due to an out-of-balance force, another type of motion can occur in a free-spindle machine. When the bowl or basket is tilted the spindle may move in a circle. This slow gyratory motion is known as precession , and is similar to the precession of a gyroscope. It is usually most pronounced at high speeds, above the critical speed. 

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