VelSensor.com
(
originally "Velocity Sensor" )
This site is
devoted to
promotion of industrial sensor products, control systems, energy
storage
systems and sensor design services by:
Stan Bleszynski's Consulting (S&M Process Control
Technology Inc)
Offering
through-air ultrasonic technology for ultra high precision proximity
distance sensing (see #2 below) and low cost very high efficiency
low power transducer design (see #3).
Contacts:
Stan Bleszynski,
R.R. 1 Lakefield,
1668 Lakehurst Rd. (Buckhorn),
K0L 2H0 Ontario Canada
Cell:
+1(705)7612168
Home:
+1-705-6572419
stanb (a.t) ptbo.igs.net
stanbleszynski (at) hotmail.com
Other documents and websites by
Stan Bleszynski:
http://www.ptbo.igs.net/~stanb/
Resume
(English)
Resume (Chinese
Mandarin)
Blog
Product family
#1:
(
Millimeter microwave
radar technology is no longer available )
Product #2: ULTRADUCER
Ultra-high
precision (40um) ultrasonic close range (8cm)
proximity sensor available for OEM
clients!
Non-contact
vernier-caliper replacement. Can also
be used
for measuring
gas temperature (~0.02C) or gas
composition.
Volume manufacturing available upon
order!
Delivery time 8 weeks.
What does it do?
Non-contact
measurement of distance with 40um accuracy over full range.
Resolution 10um. Range: 8cm
from face,
minimum distance 2.5cm.
Beam width 8mm, 1 degree
divergence. Fast 1s response (10ms,
100ms or 10s on special
order). Replaces mechanical vernier-caliper
gages. Replaces mechanical,
inductive,
shafted LVDT, optical and
capacitive proximity distance sensors.
How does it work?
Measures
the time-of-flight using 1.4MHz ultrasonic bursts. It has
automatic
calibration and
temperature/humidity/gas
composition compensation.
How is it interfaced?
Powered
by 17-29V DC, 50mA.
Analog 0-5V voltage output for
distance.
Analog combined temperature (speed of
sound)
and envelope profile output, 0-5V.
Who may need it?
-
Machine shops: controlling dimensions and dimensional
tollerance of
samples
during machining process.
-
Production departments: checking alignment and position of
objects in production lines.
Thickness
measurement of sheets and bands.
Measuring bore-hole
depth. Quality
testing.
- OEM
integrators: integrating it in the final product. Measuring of
the
quantities of
items such as disks or sheets on a
stack.
Paper sheet heights and thickness.
-
High accuracy fast air temperature measurement (0.02C) under a
condition of
constant air
composition and humidity.
-
Monitoring of gas composition (providing that temperature is known).
What is the advantage of Ultraducer over other proximity sensors?
- Much higher accuracy than the existing ultrasonic sensors on the market.
-
non-contact (as opposed to LVDT sensors that require mechanical
contact with the target)
- more accurate than optical sensors
- longer range and much more linear response with a distance, than capacitive or inductive sensors.
-
less restriction on the type of the target surface.
For
example Ultraducer will work against
a transparent target while optical
sensors
require non-transparent and reflective targets.
Ultraducer will work with
non-conductive
targets while inductive sensors wold not.
-
works through small holes down to the beam diameter; may be used for
gageing
drill hole depths.
Ultraducer Product
description.
Product Introduction (pdf, 0.05MB)
Test reports:
1) Linearity test (R&D lab)
2)
Customer's on-site test: measuring profile of a millimeter range
microwave dish
antena.
Note: beam
spread
angle of that particular transducer was enlarged to 3 degrees by
partially
covering the
aperture with a tape, in order to facilitate obtaining good echo from
a curved
surface.
Photo 1 of the test bench.
Photo2 higher resolution (jpg 0.20MB)
Measurement results: dish profile versus radius
Product
#3: ROHADUCER
Ultra low cost, very high efficiency through-air ultrasonic transducer.
New design, easy to
manufacture, no potting, no tuning.
Suitable for automated mass-production and
ideal for low power loop-powered transducer arrays for solid level
sensing.
Ideal for low cost mass-consumer market applications.
Enquiries: Stan Bleszynski
+1(705)7612168