La description
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Small in size, light in weight,
high frequency response, wide measurement range, wide ambient
temperature range, large overload capacity. It is widely applied to
military projects, vehicles, bridge inspection and other fields for
safe monitoring, automobile crash test, earthquake monitoring,
structure monitoring, environment monitoring, vibration detecting
of projects, geological exploration, the vibration detecting &
analysis of railway, bridges, dames, high buildings, etc.
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An accelerometer is a device that
measures proper acceleration. This is not necessarily the
same as the coordinate acceleration (change of velocity of the
device in space), but is rather the type of acceleration associated
with the phenomenon of weight experienced by a test mass that
resides in the frame of reference of the accelerometer device. For
an example of where these types of acceleration differ, an
accelerometer will measure a value when sitting on the ground,
because masses there have weights, even though they do not change
velocity. However, an accelerometer in gravitational free fall
toward the center of the Earth will measure a value of zero
because, even though its speed is increasing, it is in an inertial
frame of reference, in which it is weightless.
An accelerometer thus measures
weight per unit of (test) mass, a quantity also known as specific
force, or g-force. Another way of stating this is that by measuring
weight, an accelerometer measures the acceleration of the free-fall
reference frame (inertial reference frame) relative to
itself.
Most accelerometers do not
display the value they measure, but supply it to other devices.
Real accelerometers also have practical limitations in how quickly
they respond to changes in acceleration, and cannot respond to
changes above a certain frequency of change.
Single- and multi-axis models of
accelerometer are available to detect magnitude and direction of
the proper acceleration (or g-force), as a vector quantity, and can
be used to sense orientation (because direction of weight changes),
coordinate acceleration (so long as it produces g-force or a change
in g-force), vibration, shock, and falling (a case where the proper
acceleration changes, since it tends toward zero). Micromachined
accelerometers are increasingly present in portable electronic
devices and video game controllers, to detect the position of the
device or provide for game .
Pairs of accelerometers extended
over a region of space can be used to detect differences
(gradients) in the proper accelerations of frames of references
associated with those points. These devices are called
gradiometers, as they measure gradients in the gravitational field.
Such pairs of accelerometers in theory may also be able to detect
gravity waves.
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| Pays: |
China |
| N ° de modèle: |
ELA
|
| Prix FOB: |
(Negotiable)
Obtenir le dernier prix
|
| Localité: |
China |
| Prix de commande minimale: |
- |
| Commande minimale: |
10 Piece |
| Packaging Detail: |
export standard packaging |
| Heure de livraison: |
- |
| Capacité de Fournir: |
- |
| Payment Type: |
T/T |
| Groupe de produits : |
- |
