Polytec PDV-100 Скачать руководство пользователя страница 26 | Manualshive

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4 Making Measurements

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Содержание PDV-100

Страница 1: ...Titel User Manual Portable Digital Vibrometer P D V 1 0 0...

Страница 2: ...arranty also is invalidated in the case of the equipment being tampered with or modified without authorization To return the equipment always use the original packaging Otherwise we reserve the right...

Страница 3: ...Requirements 3 2 3 3 Control Elements 3 3 3 4 Installation 3 5 3 4 1 Assembly 3 5 3 4 2 Electrical Connection 3 7 3 5 Functional Test 3 7 4 Making Measurements 4 1 4 1 Start up 4 1 4 2 Selecting Suit...

Страница 4: ...s Applied 7 1 7 2 Laser Vibrometer PDV 100 7 1 7 2 1 General Data 7 1 7 2 2 Metrological Properties 7 2 7 2 3 Optics 7 5 7 2 4 Table of the Visibility Maxima 7 5 7 2 5 Dimensions 7 6 7 3 Power Supply...

Страница 5: ...an action which could lead to death or serious injury if it is not avoided Intended use The instrument is intended for laboratory use and for use in an industrial environment It may only be used with...

Страница 6: ...r which it was intended This means that the instrument conforms with the laser class 2 and is generally very safe It is thereby usually assumed that the eyes are protected by prevention mechanisms inc...

Страница 7: ...on glasses when you have to look at the target area of the laser beam long and hard to set it up Never intentionally direct the laser beam at anyone WARNING Danger from laser light Do not use any refl...

Страница 8: ...for the PDV Position The position of the laser warning labels on the PDV is shown in FIGURE 1 2 Figure 1 2 Position of the laser warning labels on the PDV Laserstrahlung Nicht in den Strahl blicken L...

Страница 9: ...will invalidate the warranty None of the equipment may be operated with opened housing WARNING Danger from electrical current Intervention for maintenance and repair work may only be carried out by th...

Страница 10: ...e battery or subject it to great shocks Do not use any batteries which are emitting a fluid or which show external damage 1 4 2 Safety Precautions for Loading Pay attention to the following safety pre...

Страница 11: ...ing The PDV 100 is shown in FIGURE 2 1 Figure 2 1 View of the PDV In the frequency range from 0 05 Hz to22 kHz the handy PDV 100 allows you to realize measurement accuracy which you previously needed...

Страница 12: ...cy modulation of the Doppler signal Figure 2 2 Signals in the vibrometer In the PDV the optics and the signal processing unit are inside the housing The demodulation of the Doppler signal is purely ba...

Страница 13: ...anger from dirt Handle the front optics with care Dirt may only be removed by using a soft dry cloth an optics brush and bellows Inspection Please pay attention to the following steps when unpacking 1...

Страница 14: ...he optimal operating temperature after it has been switched on The PDV therefore reaches its optimal properties after a warm up period of approx 20 minutes After that you can be sure that all componen...

Страница 15: ...refer to SECTION 5 5 4 Liquid Crystal Display LCD with background lighting The display shows the settings of the vibrometer The organization of the display and how to use it to operate the vibrometer...

Страница 16: ...e is positive when the object is moving towards the vibrometer optics 2 Digital signal output DIGITAL OUT Triax jack At this output the velocity information is available in S P DIF format Sony Philips...

Страница 17: ...ou will find among other things the serial number of the instrument 3 4 Installation 3 4 1 Assembly The PDV has serval threaded holes on the underside to mount the laser vibrometer Two mounting holes...

Страница 18: ...ed as follows 1 Assemble the tripod as described in the assembly instruction provided by the manufacturer MANFROTTO 2 Then mount the fluid stage onto the tripod as described in the assembly instructio...

Страница 19: ...ue between 100V to 240V For this connect the cable of the plug in power supply with the 12V circular jack on the top of the charger and put the power supply into an earthed Before you use the PDV with...

Страница 20: ...e signal level display on the display lights up the optics and the input section of the electronics are working correctly 8 Set the measurement range Velo 20mm s on the PDV 9 Connect an oscilloscope t...

Страница 21: ...PDV reaches its optimal properties after a warn up period of approx 20 minutes 5 Adapt the PDV settings to your measurement task You will find detailed information on how to set the settings in SECTI...

Страница 22: ...arance of the overrange indicator does not necessarily mean the measurement signal is causing overrange as noise peaks caused by brief disruptions of the optical signal level can trigger the display H...

Страница 23: ...vibrations when a relatively small signal is to be measured at high frequencies Under these conditions please take care of the internal saturation of the selected measurement range refer also to SECT...

Страница 24: ...t generally there are two modes of different magnitudes In this case the signal level is hardly fluctuating gray line If only one mode exists the signal level is always maximum independent from the st...

Страница 25: ...the front edge of the retaining ring for the front lens refer to SECTION 7 2 5 The optimal stand off distances can be ascertained as follows Equation 4 1 i e for l 138mm the optimal stand off distanc...

Страница 26: ...4 6 4 Making Measurements...

Страница 27: ...ng is switched off but the readout on the display is still active 5 2 Blocking the Laser Beam The PDV is equipped with a beam shutter This can be used to block the laser beam without switching off the...

Страница 28: ...5 6 1 Philosophy The PDV is operated via the display using the selection key and the key SET The main menu is shown in FIGURE 5 2 as an example of the display Figure 5 2 Exsample of the display With...

Страница 29: ...ttings are described in the following Velo Here you configure the velocity measurement range in mm s full scale You will find detailed information on this in SECTION 4 2 1 LP Here you configure the cu...

Страница 30: ...until the following display appears The display shows the actual temperature in degrees Celsius You exit the service mode using the selection key Generating the 2 80V test signal In service mode you...

Страница 31: ...he key SET pressed and then press the selection key 2 Generate the 0V test signal by then pressing the key SET several times until the following display appears The 0V test signal is only emitted whil...

Страница 32: ...approximately another 15 minutes operating time available You will find information on lithium ion battery safety in SECTION 1 4 You will find further information on the battery and on charging the b...

Страница 33: ...description further procedure will be determined If the PDV has to be sent back for repair always use the original packaging and enclose an exact description of the fault 6 1 No Laser Beam If no lase...

Страница 34: ...ing the focusing ring Does the signal level display react If the signal level display does not react either the optics or the input section of the electronics are faulty 2 Connect an oscilloscope to t...

Страница 35: ...afety IEC EN 61010 1 2002 08 Safety requirements for electrical equipment for measurement control and laboratory use EMC IEC EN 61326 1 2006 10 EMV Safety requirements for emission and immunity electr...

Страница 36: ...ting IP 64 corresponding to DIN EN 60529 Dimensions refer to SECTION 7 2 5 Weight approx 2 6kg Display LCD 3 line with background lighting Calibration recommended 2 years Output swing 4V Frequency ran...

Страница 37: ...Scotchlite Tape reflective film Maximum acceleration mm s m s2 20 5 0 02 2760 100 25 0 02 13800 500 125 0 1 69000 Data format S P DIF 24bit 48kSa s Frequency range 0Hz 22kHz Propagation delay approx 1...

Страница 38: ...sponse of the low pass filter High Pass Filter Filter type analog 3rd order Butterworth Cutoff frequency 3dB 100Hz 10 switchable via the display Frequency roll off 60dB dec d B 0 1 0 1 0 2 0 3 0 4 0 5...

Страница 39: ...distance depends on the surface properties of the object Aperture diameter 1 e mm typ 6 5 Spot size typ m 234mm 30 1m 124 2m 250 3m 370 5m 616 each additional meter plus 130 Depth of focus3 2m distanc...

Страница 40: ...r o x 1 0 0 m m f r e e s p a c e a t t h e r e a r s i d e M 6 1 4 2 0 U N C M 6 M a n u f a c t u r e d b y D 7 6 3 3 7 W a l d b r o n n G e r m a n y G m b H M o d e l N o P D V 1 0 0 x x x x S e...

Страница 41: ...ns 7 3 Power Supply PDV AC Mains Connection Housing Mains voltage 100 240VAC 10 50 60Hz Output voltage 12VDC Power consumption max 20W Protection rating with protective insulation IP40 correspond to D...

Страница 42: ...s 7 4 1 Mounting Plate VIB A P07 Dimensions Figure 7 3 Views of the mounting plate VIB A P07 Dimensions not specified are given in mm L O C K A D J U S T 9 1 5 8 4 0 3 4 5 0 9 8 1 0 6 0 9 5 1 2 0 2 2...

Страница 43: ...ature 5 C 40 C 41 F 104 F Storage temperature 10 C 65 C 14 F 149 F Relative humidity approx 80 non condensing Protection rating IP 65 corresponding to DIN EN 60529 Dimension 110mm x 45mm x 120mm Weigh...

Страница 44: ...ousing 7 4 5 Motor Vehicle Supply Cable PDV DC Connection Data Dimensions 370mm x 160mm x 150mm Weight 5 5kg incl PDV plug in power supply 1 battery and battery charger Connector 12VDC on board plug s...

Страница 45: ...n FIGURE A 1 Ifrequired you can store additional PDV accessories in the pockets and under the straps of the carrier bag Figure A 1 Carrier bag PDV BS with battery battery charger and PDV 100 The elect...

Страница 46: ...ck Cable to connect up the laser vibrometer CAUTION Danger from mishandling Secure the cable junction at the laser vibrometer with the knurled nut When disconnecting the cable always pull the plug and...

Страница 47: ...xhaustively discharged battery the Fail LED can also initially flash Switch the battery charger off and then on again As a general rule the fault state will not occur again the second time If the faul...

Страница 48: ...AC to the top of the battery charger and plug the power supply into an earthed socket 5 Press the rocker switch on the battery charger in the direction of the charge level indicators The charging pro...

Страница 49: ...arged battery can be used to operate the PDV but will not attain the maximum operating time Overcharging the battery is safetly prevented through the charge electronics It is a good idea to end the ch...

Страница 50: ...efore the battery is exhausted you will be given a warning The battery level indicator in the display on the PDV lights up If you continue to operate the laser it will switch itself off for safety rea...

Страница 51: ...o pass back batteries after use e g at public collecting points or wherever batteries of this type are being sold NOTE Batteries must not be disposed in domestic waste A 2 Motor Vehicle Supply Cable P...

Страница 52: ...A 8 A Optional Accessories...

Страница 53: ...directionally sensitive counting of the passing fringe pattern The velocity component in the direction of the object beam is a function of the path difference L according to Equation B 3 For a consta...

Страница 54: ...B 2 B Basics of the Measurement Procedure Interferometers of this type which are directionally sensitive are described as heterodyne...

Страница 55: ...C 1 C Declaration of Conformity Appendix C Declaration of Conformity Figure C 1 Declaration of conformity for the PDV 100...

Страница 56: ...C 2 C Declaration of Conformity...

Страница 57: ...specifications 7 2 carrier bag PDV BS components A 1 cavity length optimal stand off distance 4 4 technical specifications 7 5 clamping screw at the focus ring 3 3 cleaning housing surfaces 3 2 the fr...

Страница 58: ...erometer basics B 2 heterodyne interferometer 2 2 high pass filter analogue signal acquisition 4 3 laser vibrometer specifications 7 4 select 4 3 housing opening 3 2 PDV 100 technical specifications 7...

Страница 59: ...2 mounting holes M5 at the laser vibrometer 3 5 M6 at the laser vibrometer 3 5 mounting holes inch thread at the laser vibrometer 3 5 Mounting Platte VIB A P07 dimensions 7 8 O opening the housing 3 2...

Страница 60: ...cations technical laser vibrometer general data 7 1 optional accessories 7 8 power supply 7 7 specifications technical dimensions dimensions 7 6 stand off distance PDV 100 technical specifications 7 5...

Страница 61: ...ls labels for the sensor head 1 4 warning on the display Batt empty 6 2 Over Temp 6 1 wave length technical specifications 7 5 weight PDV 100 technical specifications 7 2 wide range input power supply...

Страница 62: ...vi Index...

Страница 63: ...ierre Semard 92320 Ch tillon Tel 33 1 49 65 69 00 Fax 33 1 57 19 59 60 E mail info polytec fr Internet http www polytec fr Japan JP Polytec Japan 13th floor Arena Tower 3 1 9 Shinyokohama Kohoku ku Yo...

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