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 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.

Micromechanical accelerometers are available in a wide variety of measuring ranges, reaching up to thousands of gs.

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.

The innermost stable member, a 6 inch beryllium cube, had three gyroscopes and three accelerometers mounted in it.

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

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

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.

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

Piezoelectric accelerometers rely on piezoceramics ( e. g. lead zirconate titanate ) or single crystals ( e. g. quartz, tourmaline ).

Some smartphones, digital audio players and personal digital assistants contain accelerometers for user interface control ; often the accelerometer is used to present landscape or portrait views of the device's screen, based on the way the device is being held.

A number of 21st century devices use accelerometers to align the screen depending on the direction the device is held, for example switching between portrait and landscape modes.

A frequent flyer on the shuttle, SAMS uses sensors called accelerometers to take measurements of on-board vibrations and accelerations.

* 3D accelerometers on the deck, pylons, stay cables, and on the ground to characterize wind movements and seismic tremors

In addition, the inner ear contains rotational " accelerometers ," known as the semicircular canals, which provide information to the lower brain on rotational accelerations in the pitch, roll and yaw axes.

Advanced systems could conceivably offer rollover detection based on a second VSG but it is cheaper to add longitudinal and vertical accelerometers to the existing lateral one to this end.

His work with living trees with accelerometers and hands with tactile sensors are based on random-picking software, giving objective transduction of physical phenomena a " mystic " character.

By using proper sensors ( accelerometers and gyros ) worn on the body of a patient and by reading the values from those sensors, robots can assist in patient rehabilitation.

AHRS consist of either solid-state or MEMS gyroscopes, accelerometers and magnetometers on all three axes.

The new power switch is now a feature of the Treo smartphone line ; the screen rotation button also appeared on the TX, but has since been phased out among Palm devices, with dedicated accelerometers taking over the task of properly orienting the screen.

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.

The platform accelerometers must be slightly modified for this procedure.

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 ST-124P inertial platform (' P ' for prototype ) was a component of the guidance and control system, and contained gyroscopes and accelerometers that fed information to control computers.

Some of the electronics contained within the Instrument Unit are a digital computer, analog flight control computer, emergency detection system, inertial guidance platform, control accelerometers and control rate gyros.

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