DAC O N INSPEC T IO N SERVIC ES
e sting Ultr asonic T Who we ar e Co nve ntio na l a nd Oil a - - PowerPoint PPT Presentation
e sting Ultr asonic T Who we ar e Co nve ntio na l a nd Oil a - - PowerPoint PPT Presentation
Phase d Ar r ay IO N SERVIC ES DAC O N INSPEC T e sting Ultr asonic T Who we ar e Co nve ntio na l a nd Oil a nd Ga s, Re fine ry, Ove r 400 pe rso nne l T ha ila nd he a dq ua rte rs Adva nc e d NDT a nd Pe tro c he mic a l, He a
Who we ar e
Co nve ntio na l a nd Adva nc e d NDT a nd Inspe c tio n Se rvic e s Oil a nd Ga s, Re fine ry, Pe tro c he mic a l, He a vy Industry, Mining Ove r 400 pe rso nne l inc luding mo re tha n 300 inspe c to rs T ha ila nd he a dq ua rte rs with Inte rna tio na l e xpe rtise sinc e 1979
DACON INSPE CT ION SE RVICE S
FO R A LL YO UR INSPEC TIO N NEED S
Advanc e d Ultr asonic Inspe c tion PAUT
- PAUT
= Pha se d Arra y Ultra so nic T e sting
- Co mpute rize d a pplic a tio n o f ultra so nic s in whic h hig h spe e d e le c tro nic s, re a l time
ima g ing . With to d a ys a d va nc e d te c hno lo g y, spe c ia l pro b e s a re utilize d fo r inspe c tio n.
- T
he re is no physic a l d iffe re nc e b e twe e n c o nve ntio na l UT a nd PAUT . Bo th use the sa me b a sic s a nd the o ry
- T
he ma in d iffe re nc e b e twe e n c o nve ntio na l UT a nd PAUT is within the pro b e
DACON INSPE CT ION SE RVICE S
FO R A LL YO UR INSPEC TIO N NEED S
- A mo sa ic o f tra nsd uc e r e le me nts
- Ba sic a lly PAUT
pro b e is a c o nve ntio na l pro b e c ut into ma ny e le me nts
- E
le me nts' e xc ita tio n c a n b e ind ivid ua lly c o ntro lle d
- Ce rta in d e sire d e ffe c ts c a n b e pro d uc e d b y timing the e le me nts e xc ita tio n
- ste e ring the b e a m a xis
- fo c using the b e a m.
Advanc e d Ultr asonic Inspe c tion PAUT
DACON INSPE CT ION SE RVICE S
FO R A LL YO UR INSPEC TIO N NEED S
How doe s it wor k
- E
le me nts a re a c o ustic a lly insula te d fro m e a c h o the r
- E
le me nts a re pulse d in g ro ups with pre c a lc ula te d time d e la y fo r e a c h e le me nt
- F
- c a l la w: d e fine s the e le me nts to b e fire d , time d e la ys, a nd vo lta g e s fo r b o th the
tra nsmitte r a nd re c e ive r func tio ns.
Advanc e d Ultr asonic Inspe c tion PAUT
DACON INSPE CT ION SE RVICE S
FO R A LL YO UR INSPEC TIO N NEED S
Be am F
- r
ming
- No time d e la y a pplie d
- PAUT
pro b e b e c o me s like a c o nve ntio na l UT pro b e
Advanc e d Ultr asonic Inspe c tion PAUT
DACON INSPE CT ION SE RVICE S
FO R A LL YO UR INSPEC TIO N NEED S
Be am Ste e r ing
- Pro vid e s c a pa b ility to mo d ify re fra c te d a ng le
- Allo ws fo r multiple a ng le inspe c tio n using a sing le pro b e
- Applie s a line a r fo c a l la w (d e la ys)
Advanc e d Ultr asonic Inspe c tion PAUT
DACON INSPE CT ION SE RVICE S
FO R A LL YO UR INSPEC TIO N NEED S
Be am Ste e r ing
- Pro vid e s c a pa b ility to mo d ify re fra c te d a ng le
- Allo ws fo r multiple a ng le inspe c tio n using a sing le pro b e
- Applie s a line a r fo c a l la w (d e la ys)
Advanc e d Ultr asonic Inspe c tion PAUT
DACON INSPE CT ION SE RVICE S
FO R A LL YO UR INSPEC TIO N NEED S
Be am F
- c using and Ste e r
ing at the same time
- Pro vid e s c a pa b ility to F
- c us a t a c e rta in d e pths a nd a t a c ho se n ra ng e o f d iffe re nt a ng le s
- Applie s a fo c a l la w (d e la ys) a s in b e lo w fig ure
Advanc e d Ultr asonic Inspe c tion PAUT
DACON INSPE CT ION SE RVICE S
FO R A LL YO UR INSPEC TIO N NEED S
E le c tr
- nic sc anning
- T
he a b ility to mo ve the b e a m a lo ng o ne a xis o f a n a rra y witho ut a ny me c ha nic a l mo ve me nt
- T
he mo ve me nt is pe rfo rme d o nly b y time multiple xing the a c tive e le me nt g ro up
- T
he b e a m mo ve me nt d e pe nd s o n the pro b e g e o me try a nd c o uld b e :
- line a r sc a nning
- se c to ria l sc a nning
- la te ra l sc a nning
- c o mb ina tio n
Advanc e d Ultr asonic Inspe c tion PAUT
DACON INSPE CT ION SE RVICE S
FO R A LL YO UR INSPEC TIO N NEED S
L ine ar e le c tr
- nic sc an
- T
he b e a m will mo ve a lo ng the le ng th o f the pro b e
- Ca n b e stra ig ht b e a m o r a b e a m a t a fixe d a ng le
- T
his type o f sc a n is o fte n use d fo r c o rro sio n ma pping a pplic a tio ns
Advanc e d Ultr asonic Inspe c tion PAUT
DACON INSPE CT ION SE RVICE S
FO R A LL YO UR INSPEC TIO N NEED S
Advanc e d Ultr asonic Inspe c tion PAUT
Se c tor ial sc an
- T
he a b ility to sc a n a c o mple te se c to r o r vo lume witho ut a ny pro b e mo ve me nt
- Use ful fo r inspe c tio n o f c o mple x g e o me trie s
- T
his is the mo st typic a l sc a n whic h d isting uishe s pha se d a rra y fro m o the r te c hniq ue s
DACON INSPE CT ION SE RVICE S
FO R A LL YO UR INSPEC TIO N NEED S
Applic ations
- Ne w c o nstruc tio n we ld inspe c tio n
- In-se rvic e we ld inspe c tio n inc lud ing Stre ss Co rro sio n Cra c king
- Co mple x Ge o me trie s – No zzle s, F
la ng e s, Sha fts, b o lts
- C-Sc a n ma pping
- AUT
is a lso c o mmo nly use d , a c c e pte d , a nd c o d e c o mplia nt with pha se d a rra y ultra so nic s
Advanc e d Ultr asonic Inspe c tion PAUT
DACON INSPE CT ION SE RVICE S
FO R A LL YO UR INSPEC TIO N NEED S
We ld inspe c tion
- A sc a n pla n to ma ke sure the we ld is c o ve re d c o mple te ly is ma d e first
- T
he sc a n pla n will a ssist in se tting up e q uipme nt a nd fo c a l la ws
Advanc e d Ultr asonic Inspe c tion PAUT
DACON INSPE CT ION SE RVICE S
FO R A LL YO UR INSPEC TIO N NEED S
We ld inspe c tion
- E
quipme nt c alibr ation
- Ve lo c ity
- We d g e d e la y fo r a ll a ng le s
- Se nsitivity fo r a ll a ng le s
- T
ime Co rre c te d Ga in (T CG)
- We ld sc anning
- Ma nua lly
- Se mi –a uto ma te d , using a n e nc o d e r a nd fixe d d ista nc e to we ld c e nte r line
- Using a se mi-a uto ma te d o r c o mple te ly a uto ma te d sc a nne r
Advanc e d Ultr asonic Inspe c tion PAUT
DACON INSPE CT ION SE RVICE S
FO R A LL YO UR INSPEC TIO N NEED S
Inspe c tion Re sults
- Signal inte r
pr e tation
- On Omni sc a n
- Using T
- mo vie w
Inte r pr e tation c an be pr e for me d in the fie ld “r e al time ” and also r e vie we d post inspe c tion. Pe r mane nt data file s c an be save d for futur e r e sour c e . Commonly use d for monitor ing and also Auditing inspe c tion r e sults
Advanc e d Ultr asonic Inspe c tion PAUT
DACON INSPE CT ION SE RVICE S
FO R A LL YO UR INSPEC TIO N NEED S
Advantage s
- Give s info rma tio n a b o ut la te ra l po sitio n o f
d e fe c t in we ld (d e pth a nd he ig ht)
- Give s a pe rma ne nt re c o rd
- Re pe a ta b ility, g o o d fo r mo nito ring
- No ra d ia tio n invo lve d
- Ca n b e use d fo r se ve ra l a pplic a tio ns
- Ca n find d e fe c t a t surfa c e a nd in vo lume
- f we ld (no d e a d zo ne )
- Inte rpre ta tio n simplifie d
Disadvantage s
- Hig he r c o st e q uipme nt re q uire d
- Re q uire s e xpe rie nc e d a nd tra ine d
te c hnic ia n fo r inte rpre ta tio n
- Ang le o f inc id e nc e is no t a lwa ys
- ptima l whe n using S-sc a n
Advanc e d Ultr asonic Inspe c tion
PAUT Adva nta g e s & Disa dva nta g e s
DACON INSPE CT ION SE RVICE S
FO R A LL YO UR INSPEC TIO N NEED S
How Can We He lp?
Contac t