NDTnet 1998 Aug, Vol.3 No.8
Related information see:
NDTnet 1998 May, Vol.3 No.5

SPECIAL MAY '98 EXHIBITION
Ultrasonic Flaw Detectors

Results of the Ultrasonic Flaw Detector Survey
Thanks to about 50 readers for their inputs.
Here are the six lucky winners of a NDT'96-97 CD-ROM.

Survey Questionnaire

(Previous survey: NDT Customer Satisfaction Survey - Results)


Display We display the original question for your information
Screen type for normal light     sun shine     good visible from far
A-scan Size , e.g. mm (inch) S 70 x 60 (3 x 2.5)     M 100 x 80 (4 x 3)     L 200 x 100 (8 x 4)     bigger
Echo storage features normal     maximum     average     echo filtering     frozen A-scan     and other

Pulser
Pulser type spike     Square Wave, unipolar     Square Wave, bipolar     Tone burst     and other
Voltage 100     200     400     600     1000
Damping 10     33     50     75     150     300     500     1000 2000
Rise time 5     10     20     50     200
PRF max. 50     250     1000     2000     5000     10000
PRF setting extern     automatic     manual

Amplifier
Frequency range, from 0.1     0.5     1     2     4     and other
....... To 5     10     15     25     35     and other
Narrow-band ranges 0.5     1     2     4     10     15     and other
Gain maximum 70     80     90     100     110
Steps in 0.1     0.5     1     2     6     programmable
Dynamic range 70     80     90     100     110
Echo presentation fullwave     pos. and neg. halfewave     RF     and other
Suppression (display) yes     no
DAC yes     no
Reference points 10     20     50     100     500
Dynamic dB 30     40     50     60     70     more
Slope dB/µs 3     6     9     12

Monitor Gates 1     2     3     more
Logic coincidence     anti-coincidence
Display LED     LED and acoustic
Noise suppression yes     no
Noise suppression rate 0 - 10     0 - 50     0 - 255

Sound path measurement yes     no
Resolution mm, inch 0,1, 0.04     0,01, 0.004     0.004, 0.00015
Trigger flank     peak     zero crossing
Mode Initial to gate A     Interf. to gate A     Differences gates B-A
Reduced projection distance, depth    

Data sets memory 10     50     100     500     more
Thickness Data logger 500     1000     2000     5000     more
Outputs RS 232 (PC or Printer)     RF     Gates TTL     Gates Driver
Amplitude for each gate     Analog TOF for each gate     Parallel Data     Video     and other
Inputs Applicable for automatic or semi-automatic testing    
Inputs such like .... Extern Trigger     Test data release     Alarm Reset     A-scan freez     Load data set     and other
Languages other than English German     French     other     Selectable on purchase     Installed by the operator     Selectable by keypad
Power Supply external     integrated charger
Operating Time (max. h) 4     6     8     longer
Dimensions (H x W x D) mm S e.g. 130 x 300 x 200     M e.g. 289 x 177 x 95     L e.g. 146 x 248 x 133     XL e.g. 138 x 238 x 319    
Weight without Batt. kg (lb.) 1 (2)     2 (4)     4 (8)     6 (12)     8 (16)
Other Accessories or Options
seperated by comma
battery eliminator
calibratrion samples, i/o for PC data
case
DAC, TVG, B-Scan,
DAC, TVG, B-Scan,
Digital soundpath, Angle beam geometry
harness attachments
Heads-up display or Video visor
INTERFACE TO COMPUTER
rugged protective overpack

The instrument must work in: manually semi-automated fully automated

What is of general importance?
(remember your budget!)
Functionality less o.k. good excellent
Operation, user interface less o.k. good excellent
Rugged Construction less o.k. good excellent
Reliability (downtime, errors) less o.k. good excellent
Test results documentation less o.k. good excellent
Operator Manual, Equipment documentation less o.k. good excellent
Technical support, services less o.k. good excellent
What function/data is for you most important
(for all of the above fields)

all must be excellent.
clever and friendly user interface
2 x different DAC inclusion on screen
Documentation of test results
10 x Functionality
operation, quickly remember various task
Operator Manual
Parameters Calibration on Memory
5 x Reliability
2 x Resolution
2 x Rugged construction
RUGGED CONSTRUCTION AND RELIABILITY
Technical support (for PC based UT sets)
technical support,services
Test results
user interface
2 x UT Performance & Data Presentation

Do you brows the Internet before a purchase decision no maybe yes

What prize you would pay in US$:

Which best describes your occupation
Which best describes the market you work in

Related information see: NDTnet 1998 May, Vol.3 No.5
SPECIAL MAY '98 EXHIBITION
Ultrasonic Flaw Detectors
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