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PIEZO ULT RASONIC SENSOR
Item no:
VT-US40T1204/VT-US40R1204
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Data Sheet PDF Download:   VT-US40T1204/VT-US40R1204
      


1.DimensionUnitmm

2.Electrical Characteristics

 

No.

Item

Unit

Specifications

1

Type

VT-US40T1203

VT-US40R1203

2

Construction

Open Structure

3

Using  Method

KHZ

Transmitter

Receiver

4

Center Frequency

40.0±1.0khz

39±1K Hz

5

Transmitting Sound Pressure level

dB

min.112dB (10V/30cm)

------

7

Receive Sensitivity

dB

-----

min. -70dB /V/ µbar

8

Capacitance

pF

2200pF±25% at 1KHz

9

Directivity

°

80deg

10

Operating Temperature

-35 to +85℃

11

Storage Temperatire

-35 to +85℃

12

Detectable Range

0.7...18m

13

Maximum  Input Voltage

Vp-p

60Vp-p

11

Housing   Material

Plastic

   

3.Directivity  

                           

                              

                                                     Direcivity in Overall Senaitivity

 

4.Beam pattem

 

 

                               Frequency(KHZ)

                           SP-Freq.Characteristics

 

                                Frequency(KHZ)

                                           Sensitivity-Freq.Characteristics

 

5.Test circuit

 

   R:3.9KΩ  RC=1KΩ                                   

                                                 T.G.:Target

                                           F.G:Function Generator

                                           O.S.:Oscilloscope

 

 

    6.Reliability Test

    6.1 High temp.life test

       Temperature                      +85±3 ℃

       Duration                            100hrs 

    6.2 Low temp.life test

       Temperature                      -40±3 ℃

       Duration                            100hrs

    6.3 Heat Cycle Test

       emperature                       +85±3 ℃ 1hour

                                -40±3 ℃ 1hour

       Cycles                              10cycles

    6.4 Humidity Test

       Temperature                      +60±2 ℃

       Relative Humidity                 90~95%

       Duration                           100hrs

       Tests above should be measured after leaving normal temperature for24hrs

    6.5 Vibration Test

       Vibration Frequency                10~55Hz

       Sweep Period                          1min

       Amplitude(peak to peak)           1.5mm

       Direction                                 3(x.y&z)

       Time                                   2hours/direction

    6.6 Shock test

       Acceleration                       sine 100G

       Direction                            3directions

       Shock time                         3 time/directions

    6.7 Drop test

       Height                            1m on concrete floor

       Times                             2times

    6.8 Connector soldering check:

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

       Notice:

       The variation of the S.P.L or the sensitivity at 40KHz is within 3dB compared with

       initial figures at 25 ℃ in 24 hours after above test condition.

      7. Caution

       7.1 Limitation of Applications

           Please contact us before using our product for the applications listed below which

 require especially high reliability for the prevention of defects which might directly cause

 damage to the third party's life,body or property.

 1) Aircraft equipment

 2) Aerospace equipment

 3) Undersea equipment

 4) Power plant control equipment

 5) Medical equipment

 6) Transportation equipment (vehicles,train,ships,etc.)

 7) Traffic signal equipment

 8) Disaster prevention/crime prevention equipment

 9) Data-processing equipment

 10) Application of similar complexity and/or reliability requirement to the applications

    listed in the above

      7.2 Fail -safe

        Be sure to provide an appropriate fail-sate function on your product to prevent a

  second damage

that may be caused by the abnormal function or the failure of our product

      8. Caution in use

 1) Please avoid applying an excessive stress to the transducer because it might be

 damaged.

 2) The transducer may generate surge voltage by mechanical or thermal shock.

 Care should betaken to protect from it in designing your application circuit.

 3) Please do not applying DC voltage to the transducer.

 4) Please do not use the transducer in water.

 5) The piece of sensor may be damaged by force pressure from back of sensor.

 6) Please do not use the sensor without painting on the surface.

 7)Please well evaluate the painting and electrical characteristic for your coating.

      9. Note

 1) Please make sure that your product has been evaluated in view of your specifications

 with our product being mounted to your product.

 2) You are requested not to use our product deviating from the agreed specifications.

 3) We consider it not to appropriate to include any terms and conditions with regard to the

 business

         transaction in the product specifications,drawings or other technical documents.

 Therefore, of your

         technical documents as above include such terms and conditions such as warranty

 clause, product

         liability clause,or intellectual property infringement liability clause, they will be deemed to

       be invalid

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