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Other Sensors Flashcards

1
Q

is the distance measure with respect to a fixed reference point and can be measured whenever power is applied.

A

Absolute position

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2
Q

a measure of the change in position and is not referenced to a fixed point. It can
give very accurate one component with respect to another.

A

Incremental position

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3
Q

measured by the distance traversed in a given time, velocity when moving at a
constant speed, or acceleration when the speed is changing in a straight line

A

Rectilinear position

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4
Q

measurement of the change in position of a point about a fixed axis measured
in degrees or radians.

A

Angular position

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5
Q

is an angular displacement of 1/60 of a degree

A

Arc-minute

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6
Q

is a measure of the rate of rotation

A

Angular motion

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7
Q

the rate of change of position. This can be linear measurement or angular
measurement

A

Velocity or speed

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8
Q

is the rate of change of speed.

A

Acceleration

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9
Q

is a measure of the periodic motion about a fixed reference point or the shaking
that can occur in a process due to sudden pressure changes, shock, or unbalanced loading in rotational equipment.

A

Vibration

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10
Q

is a three-terminal circuit element that consists of a resistor and a moving contact.
Serve dual functions: (1) they can act as voltage dividers, splitting
an input voltage into two components that sum up to the original input, and (2)
they can function as variable resistors.

A

Potentiometers

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11
Q

is movement in one direction along a single axis. A position or linear displacement sensor is a device whose output signal represents the distance an
object has traveled from a reference point.

A

Linear variable differential transformers ((LVDT)

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12
Q

are used for very accurate incremental position measurements.

A

Light Interference lasers

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13
Q

can be used for distance measurements

A

Ultrasonic, infrared, laser, and microwave devices

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14
Q

A specific magnetic sensor is used to measure the direction and strength of magnetic fields from electromagnets or permanent magnets, with its output changing in proportion to the magnetic field’s strength.

A

Hall Effect Sensor

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15
Q

is an alternative to the Hall effect device. Its resistance
changes with magnetic field strength.

A

Magneto resistive element (MRE)

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16
Q

detect motion by sensing the presence or absence of light

A

Optical devices

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17
Q

is an electromechanical device that is used to measure acceleration forces

A

Accelerometers

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18
Q

is typically use acceleration devices to measure vibration

A

Vibration sensors

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19
Q

is a term that relates the mass of an object to its
acceleration and acts through its center of mass.

A

FORCE

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20
Q

Measure of the quantity of material in a given volume
of an object

A

MASS

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21
Q

of an object is the force on a mass due to the pull of
the gravity

A

WEIGHT

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22
Q

a measure of the force that can cause an object to
rotate about an axis. It is a vector quantity. The direction of this
vector depends on the direction of the force on the
axis.

23
Q

occurs when two parallel forces of equal amplitude,
but opposite directions, are acting on an object to
cause rotation.

24
Q

is a transducer that converts tensile and compressive
force into measurable electrical output. It used to generate an electrical signal that is required
mostly in industrial application.

25
A load cell works by converting mechanical force into ____ that the user can read and record. Most commonly used among the three types, specifically for weighing applications including industrial scales, medical scales, and even retail scales.
digital values
26
highly sensitive lab instruments designed to accurately measure mass. It provide simple and accurate, and operates on the principle of torque.
ANALYTICAL OR LEVER BALANCE
27
is a device that measures weight by measuring the deflection of a spring when a weight is applied The deflection of the spring is proportional to the weight applied.
SPRING TRANSDUCER
28
can be used to measured force
HYDRAULIC AND PNEUMATIC DEVICES
29
____ use easily-compressible gas like air or pure gas
Pneumatics
30
_____ utilize relatively-incompressible liquid media like mineral oil, ethylene glycol, water, synthetic types, or high temperature fire-resistant fluids to make power transmission possible.
hydraulics
31
Produce an electrical charge between the opposite faces of a crystal when the crystal is deformed by a force that makes it suitable for use as a force sensor
PIEZOELECTRIC DEVICES
32
Many crystals exhibit the piezoelectric effect. Some crystals are as follows:
Quartz, Rochelle salt, Lithium sulphate, and Tourmaline.
33
_____ are often used in electronics for their precise and stable frequency characteristics.
Quartz crystals
34
typically refers to an electronic component that utilizes quartz crystals in its operation. ______ are used in many everyday electronic goods, such as smartphones and other information and communication systems, high-resolution audio products and other audio-visual equipment, and automobiles.
Quartz crystal devices
35
also known as a "dyno" , is a device that measures force, torque or power. It is a device that uses the twist or bending in a shaft due to torque to measure force.
DYNAMOMETER
36
an electronic device that measures and detects infrared radiation in its surrounding environment.
INFRARED SENSOR
37
Anything that emits heat (everything that has a temperature above around five degrees Kelvin) gives off _____.
infrared radiation
38
There are two types of infrared sensors:
active and passive
39
is a type of radiation detection device. It detects the leakage current between two plates that have a voltage between them. device in which two electrodes have been placed within an enclosed volume of gas to create an electric field.
IONIZATION CHAMBERS
40
is the pattern of disturbance caused by the movement of energy traveling through a medium (such as air, water, or any other liquid or solid matter) as it propagates away from the source of the sound. It cannot travel through space or a vacuum, unlike radio waves. Start at 16 Hz and go up to 20 kHz. It can travel through the air at about 340 m/s.
SOUND WAVES
41
or compression wave has a regular pattern of high- and low-pressure regions. a wave (as a sound wave) in which the propagated disturbance is a variation of pressure in a material medium (such as air)
PRESSURE WAVES
42
is a logarithmic measure used to measure and compare amplitude and power levels. It is also widely used in electronics, signals and communication. _____ is a logarithmic way of describing a ratio. The ratio may be power, sound' pressure, voltage or intensity or several other things
dB
43
electromagnetic radiation of any wavelength that travels in a vacuum with a speed of 299,792,458 meters (about 186,000 miles) per second. is an ultra-high frequency electromagnetic wave that travels at 3 x 10^8 m/s. Its amplitude is measured in footcandle (fc) or lux (lx).
LIGHT
44
is the brightness of light. The unit measurement of_____ in the English system is the foot-candle (fc). In the SI system unit is the lux (lx). The dB is also used for the comparison of _____.
light intensity
45
transducers used to convert sound levels into electrical signals.
MICROPHONES
46
Variety of meters for measuring and analyzing sounds.
SOUND LEVEL METER
47
Used for detection and conversion of light intensity into electrical signals. ______ can be classified as photovoltaic, photoconductive, photoemissive, and semiconductor
Photocells
48
convert sunlight into electricity.
Photovoltaic cells
49
change their resistance with light intensity.
Photoconductive devices
50
the release of electrons from a usually solid material (such as a metal) by means of energy supplied by incidence of radiation and especially light
Photoemissive
51
are photosensitive and are commercially available as photodiodes and phototransistors
Semiconductors
52
bulb or lamp is a source of electric light that works by incandescence, which is the emission of light caused by heating the filament.
INCANDESCENT LIGHT
53
most common commercially available light sources used in industry.
SEMICONDUCTOR DIODES (LED)
54
above 30 kHz sound waves are _____.
Ultrasonic

Industrial Electronics (4 decks)

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