* Apostolyuk V. Theory and Design of Micromechanical Vibratory Gyroscopes

* Apostolyuk V. Theory and Design of Micromechanical Vibratory Gyroscopes

The process consists in turning the platform manually until the outputs of both accelerometers are zero.

Before the accelerometers are mounted on the platform, the direction of their sensitive axis must be accurately determined.

The accelerometers are mounted rigidly on the platform.

The input axis of the appropriate gyros are parallel to the sensitive direction of the accelerometers.

This MEMS paradigm has enabled the manufacturing of low cost accelerometers for e. g. automotive air-bag systems and other applications where low performance and / or high g-ranges are sufficient.

MEMS devices are defined as die-level components of first-level packaging, and include pressure sensors, accelerometers, gyroscopes, microphones, digital mirror displays, microfluidic devices, etc.

Using sensing technologies such as EEG electrodes or accelerometers, these alarm clocks are supposed to wake people only from light sleep.

Pendulums are used to regulate pendulum clocks, and are used in scientific instruments such as accelerometers and seismometers.

They are most often paired with accelerometers in drilling tools so that both the inclination and azimuth of the drill can be found.

Equivalently, accelerometers measure their own acceleration relative to free-fall at their location ( since accelerations relative to free-fall must be provided by forces that are not gravitational forces ).

Micromachined accelerometers are increasingly present in portable electronic devices and video game controllers, to detect the position of the device or provide for game input.

Piezoresistive accelerometers are preferred in high shock applications.

Modern accelerometers are often small micro electro-mechanical systems ( MEMS ), and are indeed the simplest MEMS devices possible, consisting of little more than a cantilever beam with a proof mass ( also known as seismic mass ).

Most micromechanical accelerometers operate in-plane, that is, they are designed to be sensitive only to a direction in the plane of the die.

Applications for accelerometers that measure gravity, wherein an accelerometer is specifically configured for use in gravimetry, are called gravimeters.

In this case the accelerometers are used to detect the rapid negative acceleration of the vehicle to determine when a collision has occurred and the severity of the collision.

Modern electronic accelerometers are used in remote sensing devices intended for the monitoring of active volcanos to detect the motion of magma

A gravimeter is a type of accelerometer, except that accelerometers are susceptible to all vibrations including noise, that cause oscillatory accelerations.

Though the essential principle of design is the same as in accelerometers, gravimeters are typically designed to be much more sensitive than accelerometers in order to measure very tiny changes within the Earth's gravity, of 1 g. In contrast, other accelerometers are often designed to measure 1000 g or more, and many perform multi-axial measurements.

Common interfaces for commercially available accelerometers include analog interfaces, pulsewidth interfaces, and synchronous serial interfaces ( SPI, I2C, etc .).

Gyrojet ammunition is of a smaller caliber than is likely to be produced as a rocket with a current technology IMU, considering the size of highly miniaturized IMU components that were available in 2007 < ref > At WayBackMachine select < nowiki ></ nowiki >, Omni Instruments, for November 2007 </ ref > and are now so small that accelerometers and gyros are included in iPads.

The routine maximum temperature of ICP accelerometers is + 250 ° F (+ 121 ° C ); specialty units are available that operate to + 350 ° F (+ 177 ° C ).

Active yaw control is based on a computer-controlled rear differential which can actively split torque based on input from various accelerometers in the vehicle measuring longitudinal and lateral g forces, steering, brakes and throttle position.

With the transit set up, a mirror on one of the accelerometers is sighted and the platform is turned until it is aligned.

When the system is arranged for automatic leveling, the platform angles respond to any horizontal components of acceleration acting on the accelerometers.

Platform heading consists of orienting the sensitive axis of the accelerometers parallel to the desired coordinate system of the navigator.

The platform accelerometers must be slightly modified for this procedure.

Bulk micromachining has been essential in enabling high performance pressure sensors and accelerometers that have changed the shape of the sensor industry in the 80's and 90's.

Some later V-2s used " guide beams ", radio signals transmitted from the ground, to keep the missile on course, but the first models used a simple analog computer that adjusted the azimuth for the rocket, and the flying distance was controlled by the timing of the engine cut-off, " Brennschluss ", ground controlled by a Doppler system or by different types of on-board integrating accelerometers.

Two accelerometers were also on board.

Humanoid robots use accelerometers to measure the acceleration, from which velocity can be calculated by integration ; tilt sensors to measure inclination ; force sensors placed in robot's hands and feet to measure contact force with environment ; position sensors, that indicate the actual position of the robot ( from which the velocity can be calculated by derivation ) or even speed sensors.

Examples include force meters and accelerometers.

It uses accelerometers to detect its approximate orientation and acceleration and an image sensor, so it can be used as a pointing device.

It contained the basic guidance system components – a stable platform, accelerometers, a digital computer, and control electronics – as well as radar, telemetry, and other units.

The LRC tilt-mechanism is power-assisted, driven by accelerometers.

A company making accelerometers for airbags would need a completely different design and process to produce an accelerometer for inertial navigation.

* With help from Israel and Jordan, UN inspector Ritter intercepts 240 Russian gyroscopes and accelerometers on their way to Iraq from Russia.

Since the hazards of poor communication are so great, p can be justified as a habitable site only on the basis of unusual productivity such as is made available by a waterfall for milling purposes, a mine, or a sugar maple camp.

In the field of the natural sciences, scientifically verified data are quite readily available and any discussion can be shortened with good results.

Using launch systems presently available, we are developing satellites to scout the world's weather ; ;

They enlisted the help of the New Jersey congressman, who has been able to trace the letters to the national archives, where they are available on microfilm.

There are many soft and light shoe leathers available.

The respective vocabularies `` essential for travel '' are available in separate albums.

The program was instituted in 1940, and releases are available only from the Recording Laboratory of the Library of Congress, Washington 25, D.C..

There are lots of jobs available for trained high school graduates, but not for the dropouts.

Production specialists in SBA regional offices are available to help individual small business concerns with technical production problems.

Guidance and advice are available on new product research and development ; ;

Production specialists are available in SBA regional offices to help individual small business concerns with technical production problems.

Small Business Administration, What It Is, What It Does, SBA Services For Community Economic Development, and various other useful publications on currently important management, technical production, and marketing topics are available, on request, from Small Business Administration, Washington 25, D.C..

U.S. Government Purchasing, Specifications, And Sales Directory, 60 cents, are available from the Superintendent of Documents, U.S. Government Printing Office, Washington 25, D.C..

SBA loans, which may be made to small manufacturers, small business pools, wholesalers, retailers, service establishments and other small businesses ( when financing is not otherwise available to them on reasonable terms ), are to finance business construction, conversion, or expansion ; ;

and Small Business Pooling are available, on request, from Small Business Administration, Washington 25, D.C., and its regional offices.

Three distinct classes of loans are made available to farmers' cooperatives by the Banks for Cooperatives: Commodity loans, operating capital loans, and facility loans.

or a skilled labor force is trained before there are plants available in which they can be employed.

Few records are available concerning the subject prior to 1940.

Those that are available shed little light.

The mapping of important physical features such as slopes and types of soil and the collection of all available information pertaining to public utility service areas are being conducted as staff projects and, like the other two inventory projects, are scheduled for completion July 1, 1961.

Its elimination would result in the saving of interest costs, heavy when short-term money rates are high, and in freedom from dependence on credit which is not always available when needed most.

Research and development activities undertaken by the Secretary shall be coordinated or conducted jointly with the Department of Defense to the end that developments under this Act which are primarily of a civil nature will contribute to the defense of the Nation and that developments which are primarily of a military nature will, to the greatest practicable extent compatible with military and security requirements, be available to advance the purposes of this Act and to strengthen the civil economy of the Nation.

There are authorized to be appropriated such sums, to remain available until expended, as may be necessary, but not more than $75,000,000 in all, ( A ) to carry out the provisions of this Act during the fiscal years 1962 to 1967, inclusive ; ;