Hi honeyboy,
The most common type of vibrating motor works by rotating a shaft to
which an off-center weight is attached. As the motor rotates, its
center of gravity changes, and this is felt as a vibration of the
device to which the motor is attached.
In recent years, small vibrating motors have been developed for use as
"alert" devices for mobile phones and pagers. Some very small
vibrating motors are now available.
Depending on your intended use, you may not need the absolute smallest
available. Other factors such as strength of vibration, cost,
operating current and voltage, shape and durability might also be
important. They are not very expensive, so you may wish to get "one of
each" to see how well each one meets your needs.
All of these motors are standard DC motors and can be remote
controlled. You will need to purchase a remote control module
separately, according to whether you prefer radio control, infra-red
control by means of a standard TV/video remote control, or audio
control by means of a clap or other sudden noise.
You may be able to connect the motor or motors directly to the remote
control module. This will depend on the voltage and current
requirements of your chosen motor, and also on how many of them you
wish to connect to one controller. If the power loading is too great
for a direct connection, you would connect the controller to a relay
which switches power to the motors.
Here are some very small vibrating motors that are available as
components. In each case, there is a picture or illustration available
on the web. In most cases, I have listed two sources: All Electronics
Corp and SurplusTraders. Of the two, Surplus Traders is the more
expensive.
(I will list some remote controllers after the listing of motors.)
DCM-185/MC785 TWO SPEED VIBRATING MOTOR WITH SWITCH
This is the largest of the motors that I have listed here, in case you
need more intense vibration than provided by some of the really small
motors. It comes with a three position switch with positions for
"off", "low power" and "high power".
Size 0.94 inches by 0.72 inches by 1.35 inches long motor, with an 0.4
inch long 0.07 inch (2mm) diameter shaft to which is attached a
"relatively heavy" semicircular weight. 1.5 to 6 volts DC. Price range
$0.65 to $6.50 each depending on quantity and vendor.
http://www.allelectronics.com/cgi-bin/category.cgi?category=search&item=DCM-185&type=store
http://www.73.com/a/0185.shtml
PANASONIC VIBRATING MICRO-MOTOR AKME-BC
This is smaller than the one above, but still larger than most of the
motors listed here.
Size 0.59 inches by 0.79 inches by 1.15 inches long motor, with an
0.31 inch long 0.08 inch (2mm) diameter shaft to which is attached a
semicircular weight. Six to twelve volts DC. Price range $0.65 to
$2.19 each depending on quantity and vendor.
http://www.allelectronics.com/cgi-bin/category.cgi?category=search&item=DCM-184&type=store
http://www.73.com/a/0185.shtml
DCM-204/GA083 MINIATURE VIBRATING MOTOR
This is a very tiny motor.
Size 0.24 inch diameter by 0.5 inches long, plus 0.21 inches length
for the shaft and weight. Comes with a removable rubber boot which can
provide a flat mounting surface. 1.5 to 3 volts DC at 62 milliamps.
$1.00 to $4.95 each depending on quantity and vendor.
http://www.allelectronics.com/cgi-bin/category.cgi?category=search&item=DCM-204&type=store
http://www.73.com/a/0185.shtml
DCM-179/MC880 "TINY" VIBRATING MOTOR
This one is slightly longer than the one above, but quite a bit
thinner.
Size 0.16 inch diameter by 0.5 inches long, plus 0.3 inches length for
the shaft and weight. Comes with a removable silicone boot which can
provide a flat mounting surface. 1.5 to 3 volts DC. $1.00 to $1.90
each depending on quantity and vendor.
http://www.allelectronics.com/cgi-bin/category.cgi?category=search&item=DCM-179&type=store
http://www.73.com/a/0185.shtml
MC911/MC099 1.3 VOLT VIBRATOR MOTOR
Similar in size and shape to the one above, but not identical.
Size 0.375 inches by 0.25 inches including mounting boot, by 0.875
inches long including shaft. 1.3 volts DC at 80 milliamps. $1.90 to
$2.99 depending on quantity.
http://www.73.com/a/0185.shtml
SANKO ELECTRIC #1E120
This one is the smallest of all. It is button-shaped with the weight
enclosed within the motor.
Size 0.55 inches diameter and 0.135 inches thick. Three volts DC.
$1.25 to $2.40 each depending on vendor.
http://www.allelectronics.com/cgi-bin/category.cgi?category=search&item=VB-1&type=store
http://www.73.com/a/0185.shtml
Here are some remote control devices.
RADIO CONTROL
This radio-controlled receiver is 2.81 inches by 1.5 inches by 2
inches, operating on 12 volts DC. It is designed for use in an alarm
system, but can be used in an application such as yours if it is not
too big for your needs. $5.50 each.
http://www.allelectronics.com/cgi-bin/category.cgi?category=search&item=AS-100&type=store
AUDIO CONTROL
This sound-operated receiver responds to a hand-clap or other sharp
noise, and is specifically mentioned as suitable for motor control. It
operates on three volts DC. It comes as a kit. No size is given, but
it's much smaller than the radio control module. $4.75 each.
http://www.allelectronics.com/cgi-bin/category.cgi?category=search&item=EM-106&type=store
INFRA-RED CONTROL
You can use any video or audio remote control to activate this
receiver. It comes as a circuit-board 3.4 inches by 0.69 inches. It
operates on 6 to 12 volts DC, and switches 75 milliamps. $5.00 each.
http://www.allelectronics.com/cgi-bin/category.cgi?category=search&item=IR-93&type=store
An alternative infrared transmitter/receiver kit is offered by Jameco
as part number 177092 for $24.95. The size of the receiver circuit
board is 1.4 inches by 1.2 inches. It runs on 6 to 15 volts DC
https://www.jameco.com/cgi-bin/ncommerce3/ProductDisplay?prmenbr=91&prrfnbr=95580&cgrfnbr=501&ctgys=
The following devices may also be of interest to you:
Combined mobile phone battery and vibrator (Nokia 5100/6100) $19.95
http://www.allelectronics.com/cgi-bin/category.cgi?category=search&item=NOK-5&type=store
Vibrating transducer (AS-500) $9.00
http://www.allelectronics.com/cgi-bin/category.cgi?category=search&item=AS-500&type=store
Vibrating Ring Alert
http://www.allelectronics.com/cgi-bin/category.cgi?category=925&item=ACV-1&type=store
Additional links:
Home pages for the vendors mentioned above:
All Electronics Corp home page
http://www.allelectronics.com/index.html
SurplusTraders home page
http://www.73.com/
Additional vendors who supply small vibrating motors such as those
described above:
MPJA Online
http://www.mpja.com/list.asp?dept=100
Solarbotics
http://www.solarbotics.com/order/default.asp?PG=2&ACTION=CAT&CATID=8
Google search strategy:
"vibrating motor"
://www.google.com/search?q=%22vibrating%20motor%22
"vibrating ring alert"
://www.google.com/search?q=%22vibrating%20ring%20alert%22
I also made heavy use of Robot Room Links to Retailers, Distributors
and Catalogs
http://www.robotroom.com/LinksRetail.html#SOLARBOTICS
Please feel free to request a clarification if necessary.
Regards,
eiffel-ga |
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