Acoustic Emission Sensors

Ultrasonic sensors

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Product introduction
Technical parameters
Product accessories
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This ultrasonic sensor radiates the ultrasonic in the air, and receives the reflection wave from the object, and measures the presence of the object or the distance to the object. Because the ultrasonic wave reflects to a transparent object, it is possible to use even by the one that it is not possible to detect by optical. A passive method and an active method will offer both wide usage sensors.

Feature for ultrasonic sensors.

High pitched sound pressure and high sensitivity.
Small size, lightness in weight, and solidity.
High accuracy and high reliability.
Low power consumption and economical efficiency.
Environmental withstanding for tepid, humidity and
dirt.

Function of ultrasonic sensors.

Space transmission of signals.
Measurement of transmission time.
Detection of continuous signal.
Utilization of the doppler effect.
Measurement at reflection time of pulse.
Measurement for Karman vortex flow.

Installation methode.

One element reflection system
(two-way one sensor).
Two elements reflection system
(two-way each sensors).
Two elements opposing system (two-way each
sensors).
Please consult about other specifications.

Example of principal applications.
Various distance measurements
Calculation for object on conveyers
Proximity switches
Back and corner sensor of automobile
Liquid, density of gas, and flow sensors
Water level and liquid boundary level sensors
Invader warning sensors
Automatic door sensors
Equipment remote control sensors
Snow fallen and snow stack sensors

High frequency types

Signal model.

Low frequency types

Model		FUS-40BT	FUS-40BR	FUS-40CT	FUS-40CR	FUS-40E	FUS-110A	FUS-200A	FUS-300A	FUS-400A
Construction		Closed face		Open face		Open face	Matching layer face
Each transmitting and receiving		For transmission	For reception	For transmission	For reception	Transmitting / Receiving	Transmitting / Receiving
Nominal frequency	kHz	40				40	110	200	300	400
Sound pressure level	dB or more	105	-	118	-	-	-
(0dB劔210-5Pa)
Sensitivity	dB or more	-	-57	-	-46	-	-
(0dB劔1v竸Pa)
T/R Sensitivity	dB or more	-				-43	-54	-56	-66	-74
						at.30cm	at.40cm	at.20cm	at.15cm	at.10cm
Band width	kHz or more	2	2	6	6	-	-
		(100dB)	(-60dB)	(105dB)	(-54dB)
Electrostatic capacity	pF	260020%				2000	600	380	260	200
Irradiation directivity	deg	80		50		40	7	7	6	6
Max. input voltage	V	15	-	15	-	100	80	60	40	40
		(r.m.s)				(Pulse V p.p.)	(Pulse V p.p.)
Distance of detection	m	0.2 3		0.2 6		0.2 4	0.4 2.5	0.2 1.2	0.1 0.6	0.08 0.3
Resolution	mm	9		9		9	3	2	1.2	1
Operating temp. range		-20 70				-25 70	-20 60
Storage temp. range		-35 80				-40 85	-35 70
Storage at high temp.	Sensitivity Change 3dB Within	80 500h					70 200h
Storage at low temp.		-35 500h					-35 200h
Durability on humidity		60 90 95%RH 500h
Durability on long driving		60 85%RH 10v rms 500h					-
Shock		Drop to a hard wooden plate with 1m height 3 times.
Vibration		105510Hz/1 minute and full amplitude : 1.5mm XYZ each 1hour
Dimension	mm	17.811H		1612H		1612H	3717.2H	1910.8H	138.8H	107.4H

Instructions and directions for use
There is a directivity for the sensor. Please note the installation and the direction.
A minus terminal connects to the case and is shielded. Please note the connection method
　 ( Excluding FUS-40E ) .
The noise might be generated by the impact. Please maintain the buffer by pluff rubber etc.
The insulation resistance decreases occasionally. Please do not impress direct current for
　 a long time.
This sensor cannot be used in the water.
The specification is occasionally changed without advance notice for the improvement.