Ultrasonic - Page 1 - Willow Technologies

Ultrasonic Sensors
Ultrasonic MA Series
1- Open Structure Types
These sensors transmit and receive ultrasonic waves, having
applications in distance measurement (vehicle reversing aids etc),
object detecting, security alarms and remote control
Features
1. Compact and lightweight design
2. High sensitivity and sound pressure levels
3. Low power consumption
4. High reliability
5. Open, closed waterproof and high frequency options
Types
1. Open Structure
Using the combined vibration mode of a bimorph
transducer and radial core, this type exhibits high
sensitivity and high sound pressure levels.
Applications : Automatic doors, Burglar Alarms, Remote
control, Range finders.
Order Code
C ons truc tion
Type
N orm. F req.
Sensitivity
Sound Pressure
Directivity
Capacitance
O p. Temp. R a nge
Detect. Range
Resolution
Dimension
Weight
Allowable Input
( V p -p )
(Rect. wave)
MA4OS4R/S* MA40B8R/S*
MA4OB7
MA40S5
O pen s truc ture type
S e p. R e c e ive r & Tra ns mitter
C ombined type
( kH z )
40
(dB)
-63±3
-63±3
-61
-62
(dB)
120±3
120±3
-116
-111
(deg)
100
50
40
70
(pF)
2550±20%
2000±20%
2000±20%
2550±20%
( °C )
-3 0 + 85
(m)
0.2 - 4
0.2 - 6
0.2 - 4
0.2 - 4
(mm)
9
9
9
9
9.9Ø x 7.1h
(mm) 9.9 Ø x7.1h
16 Ø x 12h
16 Ø x 12h
(g)
0.7
2
2
0-7
20 (40kHz)
V
20 (40kHz)
20 (40kHz)
100 (40kHz )
P uls e width
Continuous
Continuous
0.4ms
Continuous
signal
signal
Interval 100ms
signal
* Specify R=Receiver or S=Sender
Directivity
MA40B8R
MA40S4R
MA40B8S
MA40S4S
MA40B7
MA40S5
2. Water Proof
This type has excellent resistance to harsh
environmental conditions and can be used outdoors.
Applications : Back sonar of vehicles, Parking meters
Water level meters.
3. High Frequency
Using longitudinal vibration and acoustic matching layer, this
type exhibits high sensitivity in air.
Short wavelengths facilitate sharp directivity for high
precision measurements.
Applications: Approach switches, distance measurements, liquid
level meters, gas flow meters.
Dimensions
MA40S5
Page 1 of 3
Willow Technologies Ltd.
+ 44 (0) 1342 717102
Unit 3 Borers Yard, Borers Arms Road, Copthorne, West Sussex, RH10 3LH, United Kingdom.
+ 44 (0) 1342 717014  [email protected] http://www.willow.co.uk
W362013
2- Water Proof Types
Order Code
C ons truc tion
Type
Dimensions
MA40E7R/S*
S e p. R e c . & Tra ns .
N orma l F requenc y
O vera ll S e ns itivity
Sensitivity
Sound Pressure
Directivity
Capacitance
O p. Temp. R a nge
Detectable Range
Resolution
Dimension
Weight
Allowable Input
( V p-p)
(Rectangular wave)
( kH z)
( dB )
(dB)
(dB)
(deg)
(pF)
( °C )
(m)
(mm)
(mm)
( g)
V
MA40E8-2
MA40E6-7
Wa ter proof type
C ombined us e
Minia ture
MA40E9-1
As ymetric
Beam
40
-74min.
106 min.
100
2200±20%
0.2 - 3
9
18 Ø x 12h
4. 5
85 (40kHz)
P uls e width
0.4ms
Interval 100ms
-82 min.
108
75
2200±20%
-3 0 + 85
0.2-1.5
0.2 - 2
9
9
14Ø x 8h
18 Ø x 12h
4. 5
160(40KHz)
140
P uls e width
( 40k H z S ine wa ve )
0.8ms
Pulse width 0.4ms
Interval 60ms
Interval
100ms
-85min
106min
75
2800
-85
106
100Wx50H
4500±20%
0.2 - 6
8
18Ø x 10h
* Specify R=Receiver or S=Sender
Directivity
MA40E7S ----
MA40E8-2
MA40E7R -----
MA40E9-1
MA40E6-7
MA40E9-1
All dimensions in mm
Page 2 of 3
Willow Technologies Ltd. Unit 3 Borers Yard, Borers Arms Road, Copthorne, West Sussex, RH10 3LH, United Kingdom.
+ 44 (0) 1342 717102
+ 44 (0) 1342 717014  [email protected] http://www.willow.co.uk
W362013
3- High Frequency type
O rder C ode
C ons truc tion
Type
Normal Frequency
Overall Sensitivity
Sensitivity
Sound Pressure
Direc tivity
Op. Temp. Range
Detectable Range
Resolution
Dimension
Weight
Allowable Input
( V p-p)
(Rectangular wave)
(kHz)
(dB)
(dB)
(dB)
( de g )
(°C)
(m)
(mm)
(mm)
(g)
V
MA8 0A1
MA2 00 A1
MA4 00 A1
H igh frequenc y type
S e p. R e c . & Tra ns .
75±5
200±10
400±20
-47 min.
-54 min.
-74dB min.
0dB=18 Vp - p 0dB=18 Vp - p 0dB=18 Vp - p
( at 50cm )
( at 20cm )
( at 10cm )
7
-10 to +60
-30 to +60
0.5 - 5
0.2 - 1
0.06 - 0.3
4
2
1
47 Ø X24.5h
19 Ø X 11h
11 Ø X 10.5h
93
6
2
120 (75kHz)
120 (200kHz) 120 (400kHz)
P uls e width
P uls e width
P uls e width
600 µ s
250 µ s
125 µ s
Interval 50ms
Interval 20ms
Interval 10ms
Directivity
MA80/200/400A1
* Specify R=Receiver or S=Sender
Dimensions
4- Construction Diagrams
1) Open Construction
2) Water Proof Type
3) High Frequency Type
Page 3 of 3
Willow Technologies Ltd. Unit 3 Borers Yard, Borers Arms Road, Copthorne, West Sussex, RH10 3LH, United Kingdom.
+ 44 (0) 1342 717102
+ 44 (0) 1342 717014  [email protected] http://www.willow.co.uk
W362013