- Measures and detects distances to moving
objects.
- Impervious to target materials, surface
and color.
- Solid-state units have virtually unlimited,
maintenance-free lifespan.
- Detects small objects over long operating
distances.
- Resistant to external disturbances
such as vibration, infrared radiation, ambient noise and
EMI radiation.
- Ultrasonic sensors are not affected
by dust, dirt or high-moisture environments.
Ask your representative
about Migatron's full line of over 150 ultrasonic sensing
devices: loop controls, robotic sensing, sensors to sort
and transfer product by height, to count and measure, level
detection of liquids and solids, distance measuring, part
distinction, reflective counting, web brake detection, roll
diameter, tension control and winding/unwinding regulation,
slacking height control, proximity and ranging detection
for AGV's, people detection for counting or security, thickness
measuring and much more including custom sensor manufacturing
for OEM applications.
Migatron's experience
with so many successful applications has enabled standardization
and a reduction of sensor costs! Plus, sensors are available
with options to accommodate specific applications for stringent
operating requirements.
Options include:
sealed transducers, high gain, hysteresis control, separate
transducers for thru beam detection, analog outputs and
multi-channel systems.
Q:
How are specific application
problems solved?
A:
At Migatron,
we're asked everyday to solve specific application problems
with unique design parameters. As a result, we offer over
one hundred and fifty different types of sensors and countless
application solutions.
For example, one
Migatron customer needed to monitor the liquid level of
a warm acid bath and provide a continual status report to
a process control. The bath tank was five feet deep.
Migatron considered the problem and recommended
an ultrasonic sensor with the following:
-
A stainless steel transducer and housing
to withstand the acid fumes.
-
A threaded sensor for easy mounting.
-
An operating frequency that eliminates
ambient and background noise, yet offers a consistent
range of at least 80".
-
An analog signal output compatible
with the controllers.
-
Use of available on-site voltage to
drive the sensor.
The
recommended sensor was the RPS-426A-80 which features a
stainless steel threaded barrel unit with a 80" range and
analog output. It proved to be the perfect solution.
|
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Two
Ultrasonic
Sensor
Types |
Q: What is the difference
between proximity detection and ranging measurement?
A: Proximity detection: An object passing anywhere
within the preset range will be detected and generate and
output signal. The detect point is independent of target
size, material or degree of reflectivity.
Ranging Measurement:
Precise distance(s) of an object moving to and from the
sensor are measured via time intervals between transmitted
and reflected bursts of ultrasonic sound. The example shows
a target detected at six inches from the sensor and moving
to ten inches. The distance of change is continuously calculated
and outputted.
Q: Who is Migatron
and what is their product selection?
A:
Since 1979, Migatron has
led the industry in the design and manufacture of industrially
hardened sonic sensors and advanced solution-based technology
for difficult sensing/control applications.
Migatron offers:
-
Wide and narrow beam units with digital
or analog outputs.
-
Units that operate over a variety of
voltage ranges.
-
Self-contained units with a wide variety
of housings such as plastic, metal and stainless steel.
-
Multi-transducer units that include
temperature control compensation.
-
Heated units for outdoor use.
Migatron's transducers can be provided
with:
-
Time delays and/or span adjustments;
-
Sensing ranges from 2 inches to 40
feet
-
Multiplex controls to prevent cross
talk between transducers
Migatron also offers custom manufacturing
systems.
Q: How do sensors
and meters work together?
A:
Migatron
provides a control for those that have experienced the difficulty
in applying analog devices. In the past, our customers used
various control methods to convert the signal to usable
engineering units as well as implementing various controls
to monitor the signal.
To simplify this process, Migatron has
designed a stand alone control system that sets up easily.
The control has both voltage and current inputs. Scaling
allows real engineering units to be displayed while four
programmable relay outputs give event and real-time control.
The control has optional temperature compensation, two sensor
input and/or a RS485 communications port. By selecting the
proper sensor, the meter offers a further dimension of control.
Q: Who has the complete
system solutions?
A:
There are
many cases where multiple transducers are required to provide
systems information. Examples are contouring, sizing, measuring,
quality control, sort and multiple part-selection. Migatron
provides two-to-eight transducer systems with both analog
and digital outputs. These systems come in a robust encloser
and can measure to .05% of range which equates to +/-.002
of an inch at 4 inches.
Migatron serves a diverse customer base.
Our experience with some of the nations leading companies
is your assurance of quality, excellent service and reliability.
Industries using Migatron's ultrasonic sensors include automotive,
petrochemical, machine-tool, pharmaceutical, printing, baking,
food processing, glass, film and steel to name a few.
Q:
What is the meaning of
target angle and beam spread
A:
Target angle:
This term refers to the "tilt response" limitations of a
given sensor. Since ultrasonic sound waves reflect off the
target object, target angles indicate acceptable amounts
of tilt for a given sensor. If an application requires a
target angle beyond the capabilities of a single sensor,
two sensors can be teamed up to provide even a broader angle
of tilt.
Beam Spread: This term is defined as the
area in which a round wand will be sensed if passed through
the target area. This is the maximum spreading of ultrasonic
sound as it leaves the transducer.
