1.Dimension（Unit：mm）

 

 

2.Electrical Characteristics

 

No.	Item	Unit	Specifications
1	Construction		Water Proof
2	Using  Method		Dual Use
3	Center Frequency	Khz	48±1khz
4	Sound Pressure Level	dB	≥85(30cm/10Vrms)
5	Sensitivity	dB	≥-90dB /V/ µ bar
6	Echo Pulse Width	V	≥1.8V(at 60cm)
7	Ringing Time	ms	≤1.6ms
8	Capacitance	pF	2100pF±25% at 1KHz
9	Directivity	°	110×50deg
10	Operating Tem.Range	℃	-40 to +85℃
11	Storage Tem.Range	℃	-40 to +85℃
12	Allowable  Input Voltage	Vp-p	160Vp-p
13	Housing   Material		Aluminum

 

3.Directivity  

－ － － Vertical

                                                                    _______  Horizontal

                       Direcivity in Overall Senaitivity

 

4.Beam pattem

 

                                     Frequency(KHZ)

                                 SP-Freq.Characteristics

                                      Frequency(KHZ)

                                                           Sensitivity-Freq.Characteristics

 

5.Test circuit

Echo&Resonant Time test circuit

 

                                 OSC:Oscillator

                             P.S:Power supply

                             S.C.D:Special circuit diagram

                             U.S :Ultrasonic Sensor

                             T.G:Target

 

S.P.L test circuit

     

                       OSC. :Oscillator

                       F.C :Frequency Counter

                       U.S :Ultrasonic Sensor

                       S.C.M:Standard Cappacitor Microphone

                       Amp.:Ampifier

 

Sensitivity test circuit

             

                        OSC.:Oscillator
                                F.C :Frequency Counter
                                U.S :Ultrasonic Sensor
                                S.C.M:Standard Cappacitor Microphone
                                Amp.:Ampifier
                                SP:Tweeter
                                RL:3.9KΩ

 

6.Reliability Test

  6.1High temp.life test

       Temperature                   + 85±3°C

       Duration                       500hrs

6.2 Low temp.life test

       Temperature                   -40±3°C

       Duration                       500hrs

    6.3 Heat Cycle Test

       Temperature                    + 85±3°C 1hour

                                      -40±3°C 1hour

       Cycles                         100cycles

    6.4 Humidity Test

       Temperature                    +65±2°C

       Relative Humidity                90~95%

       Duration                        500hrs

    6.5 Vibration Test

       Vibration Frequency              10~ 200Hz

       Sweep Period                    1 5min

       Acceleration                     43.12m/s ² (4.4G)

       Direction                        3(x.y&z)

       Time                            96hours/direction

    6.6 Shock test

       Acceleration                     sine 980 m/s²(100G)

       Direction                        3directions

       Shock time                      3 time/directions

    6.7 Drop test

       Height                          1m onto concrete floor

       Times                           10 times

    6.8 Connector soldering check:

       Immersing terminal up to 1mm below base in soldering bath at 260 ℃ 10seconds

       Notice:

       The variation of the S.P.L at 40 kHz is within 3dB compared with initial figuresat 

       25°C in 2 4 hours after above test condition.

    7.Notice

    7.1 Export Control 

No BeStar products should be used or sold, through any channels, for use in the design,

development, production, utilization, maintenance or operation of, or otherwise contribution to

(1) any weapons (Weapons of Mass Destruction [nuclear, chemical or biological weapons or

missiles] or conventional weapons) or

(2)goods or systems specially designed or intended for military end-use or utilization by military

end-users.

7.2 Please contact our sales representatives or product engineers before using the products in

the specification or catalogue for the applications listed below, which require especially high

reliability for the prevention of defects which might directly damage a third party's life, body or

property, or when one of our products is intended for use in applications other than those

specified in this specification.

a) Aircraft equipment or Aerospace equipment

b) Undersea equipment and Power plant equipment

c) Medical equipment and Transportation equipment (vehicles, trains, ships, etc.)

d)Traffic signal equipment i Disaster prevention / crime prevention equipment

e) Data-processing equipment including Application of similar complexity and/or reliability

requirements to the applications listed above

7.3 Product specifications and catalogues are subject to change and our products in them may

be discontinued without advance notice.

Please check with our sales representatives or product engineers before ordering. If there are

any questions, please contact our sales representatives or product engineers.

7.4 Please read rating and CAUTION (for storage, operating, rating, soldering, mounting and

handling) in this specifications in order to prevent smoking and/or burning, etc.

7.5 Please note that unless otherwise specified, we shall assume no responsibility whatsoever

for any conflict or dispute that may occur in connection with the effect of our and/or a third

party's intellectual property rights and other related rights in consideration of your use of our

products and/or information described or contained in our specifications and catalogues. In this

connection, no representation shall be made to the effect that any third parties are authorized

to use the rights mentioned above under licenses without our consent.

7.6 No ozone depleting substances (ODS) under the Montreal Protocol are used in our

manufacturing process.