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New dimension to noise and vibration analysis
C ONDITION MONITORING
The Plato module 25 allows the user to display noise and vibration data in three dimensions, while inspecting instantaneous 2-D slices.
New dimension to n o i s e and vibration analysis A n t h o n y Best Dynamics (ABD) has e x t e n d e d the capabilities of its Plato noise a n d v i b r a t i o n analysis system. The Plato syst e m software consists of modules d e s i g n e d to a c c o m p l i s h specific t a s k s s u c h as d a t a acquisition, processing a n d display. The new m o d u l e 25 ena b l e s t h e u s e r to d i s p l a y graphically a t h r e e - d i m e n s i o n a l m a p of v i b r a t i o n a n d noise data, while at the same time moving across the m a p to inspect 2-D slices. Being able to view the entire d a t a set in this way is of great benefit w h e n d i a g n o s i n g noise a n d v i b r a t i o n problems. Many forms of r o t a t i n g machinery produce vibration at frequencies synchronised to the speed of the shafts involved. In variable speed p u m p s , noise/ v i b r a t i o n testing should encompass the operational speed r a n g e of t h e m a c h i n e . D a t a acquisition systems typically therefore require the capability to synchronise t h e i r acquisition rates to the speed of reference shafts, to lock the analysis to the speed. The new m o d u l e 25 in Plato provides a choice of 3-D displays such as a waterfall diag r a m ( s h o w i n g noise level spectra at discrete shaft
s p e e d s ) or a c o l o u r - m a p p e d Campbell-type display (where noise levels are m a p p e d onto a s c a l e of c o l o u r s ) . T h e 3-D r e p r e s e n t a t i o n s are j u x t a p o s e d w i t h 2-D displays w h i c h ins t a n t l y u p d a t e as t h e u s e r moves t h r o u g h the 3-D d a t a s e t u n d e r precise control. The 2-D displays show the order spect r u m at the user selected speed a n d the order track (noise level at a selected m u l t i p l e of shaft speed a g a i n s t shaft speed). In the C a m p b e l l d i a g r a m representation, viewing the data from a b o v e i n t h i s m a n n e r often makes the identification of c o n s t a n t frequencies (reson a n c e s ) easier.
ing voltage, current, p h a s e balance, efficiency, p h a s e sequence, power factor, speed, duty head a n d flow. This allows r o u t i n e m o n i t o r i n g for a n o p t i m i s e d m a i n t e n a n c e schedule; remote m o n i t o r i n g for early notification of p o t e n t i a l failure c o n d i t i o n s at remote sites, a n d d a t a acquisition for a n in-house database. The package comprises the Monitor energy analyser plus • T h r e e 1000 A or 200 A c u r r e n t t r a n s f o r m e r (CT) clamps and four voltage probes • Infra-red keypad • Two 20 bar pressure t r a n s d u c e r s c a l i b r a t e d to t h e Monitor via separate interface u n i t s • Flowmeter signal interface • Three 50 m e x t e n s i o n cables • Mains charger for the analyser a n d keypad • Analysis and presentation software, a n d d o c u m e n t a t i o n The e q u i p m e n t comes packaged i n two a l u m i n i u m c a r r y i n g cases.
Contact: Radcom Technologies Ltd, 2 Venture Road, Chilworth Research Centre, Southampton SO16 7NP, UK. Tel: + 4 4 1703 760733; Fax: + 44 1703 768023.
B
Torque measurement monitors pump performance
Contact: Andy Rumble, Anthony Best Dynamics, Holt A range of n o n - c o n t a c t i n g torRoad, Bradford on Avon, Wilts q u e - m e a s u r i n g c o u p l i n g s for BA15 1AJ, UK. Tel: + 4 4 1225 m o n i t o r i n g p u m p performance 867575.
has been l a u n c h e d by I n d u s t r i a l M e a s u r e m e n t s Ltd. The TFC range of couplings [ ] Pump efficiency provide accurate a n d reliable package m e a s u r e m e n t of t h e t o r q u e t r a n s m i t t e d between driver a n d p u m p , i n d e p e n d e n t of o t h e r Radcom has developed a com- variables a n d unaffected by dirt p r e h e n s i v e p a c k a g e to t e s t a n d w a t e r etc. Torque measurepump performance b a s e d m e n t s provide valuable infora r o u n d the p o r t a b l e M o n i t o r m a t i o n a b o u t the p e r f o r m a n c e energy analyser. This provides of the p u m p a n d motor. a s t r a i g h t - f o r w a r d a n d costThe use of a single coil for effective m e t h o d of m e a s u r i n g power t r a n s m i s s i o n a n d d a t a efficiency a n d other p u m p oper- retrieval m i n i m i s e s a l i g n m e n t ating characteristics. problems. A high frequency The package can be used for m o d u l a t i o n signal, which can performance t e s t i n g by m e a s u r - cater for b a n d w i d t h s in excess
WORLD PUMPS JULY 1995
3
The Plato module 25 allows the user to display noise and vibration data in three dimensions, while inspecting instantaneous 2-D slices.
New dimension to n o i s e and vibration analysis A n t h o n y Best Dynamics (ABD) has e x t e n d e d the capabilities of its Plato noise a n d v i b r a t i o n analysis system. The Plato syst e m software consists of modules d e s i g n e d to a c c o m p l i s h specific t a s k s s u c h as d a t a acquisition, processing a n d display. The new m o d u l e 25 ena b l e s t h e u s e r to d i s p l a y graphically a t h r e e - d i m e n s i o n a l m a p of v i b r a t i o n a n d noise data, while at the same time moving across the m a p to inspect 2-D slices. Being able to view the entire d a t a set in this way is of great benefit w h e n d i a g n o s i n g noise a n d v i b r a t i o n problems. Many forms of r o t a t i n g machinery produce vibration at frequencies synchronised to the speed of the shafts involved. In variable speed p u m p s , noise/ v i b r a t i o n testing should encompass the operational speed r a n g e of t h e m a c h i n e . D a t a acquisition systems typically therefore require the capability to synchronise t h e i r acquisition rates to the speed of reference shafts, to lock the analysis to the speed. The new m o d u l e 25 in Plato provides a choice of 3-D displays such as a waterfall diag r a m ( s h o w i n g noise level spectra at discrete shaft
s p e e d s ) or a c o l o u r - m a p p e d Campbell-type display (where noise levels are m a p p e d onto a s c a l e of c o l o u r s ) . T h e 3-D r e p r e s e n t a t i o n s are j u x t a p o s e d w i t h 2-D displays w h i c h ins t a n t l y u p d a t e as t h e u s e r moves t h r o u g h the 3-D d a t a s e t u n d e r precise control. The 2-D displays show the order spect r u m at the user selected speed a n d the order track (noise level at a selected m u l t i p l e of shaft speed a g a i n s t shaft speed). In the C a m p b e l l d i a g r a m representation, viewing the data from a b o v e i n t h i s m a n n e r often makes the identification of c o n s t a n t frequencies (reson a n c e s ) easier.
ing voltage, current, p h a s e balance, efficiency, p h a s e sequence, power factor, speed, duty head a n d flow. This allows r o u t i n e m o n i t o r i n g for a n o p t i m i s e d m a i n t e n a n c e schedule; remote m o n i t o r i n g for early notification of p o t e n t i a l failure c o n d i t i o n s at remote sites, a n d d a t a acquisition for a n in-house database. The package comprises the Monitor energy analyser plus • T h r e e 1000 A or 200 A c u r r e n t t r a n s f o r m e r (CT) clamps and four voltage probes • Infra-red keypad • Two 20 bar pressure t r a n s d u c e r s c a l i b r a t e d to t h e Monitor via separate interface u n i t s • Flowmeter signal interface • Three 50 m e x t e n s i o n cables • Mains charger for the analyser a n d keypad • Analysis and presentation software, a n d d o c u m e n t a t i o n The e q u i p m e n t comes packaged i n two a l u m i n i u m c a r r y i n g cases.
Contact: Radcom Technologies Ltd, 2 Venture Road, Chilworth Research Centre, Southampton SO16 7NP, UK. Tel: + 4 4 1703 760733; Fax: + 44 1703 768023.
B
Torque measurement monitors pump performance
Contact: Andy Rumble, Anthony Best Dynamics, Holt A range of n o n - c o n t a c t i n g torRoad, Bradford on Avon, Wilts q u e - m e a s u r i n g c o u p l i n g s for BA15 1AJ, UK. Tel: + 4 4 1225 m o n i t o r i n g p u m p performance 867575.
has been l a u n c h e d by I n d u s t r i a l M e a s u r e m e n t s Ltd. The TFC range of couplings [ ] Pump efficiency provide accurate a n d reliable package m e a s u r e m e n t of t h e t o r q u e t r a n s m i t t e d between driver a n d p u m p , i n d e p e n d e n t of o t h e r Radcom has developed a com- variables a n d unaffected by dirt p r e h e n s i v e p a c k a g e to t e s t a n d w a t e r etc. Torque measurepump performance b a s e d m e n t s provide valuable infora r o u n d the p o r t a b l e M o n i t o r m a t i o n a b o u t the p e r f o r m a n c e energy analyser. This provides of the p u m p a n d motor. a s t r a i g h t - f o r w a r d a n d costThe use of a single coil for effective m e t h o d of m e a s u r i n g power t r a n s m i s s i o n a n d d a t a efficiency a n d other p u m p oper- retrieval m i n i m i s e s a l i g n m e n t ating characteristics. problems. A high frequency The package can be used for m o d u l a t i o n signal, which can performance t e s t i n g by m e a s u r - cater for b a n d w i d t h s in excess
WORLD PUMPS JULY 1995
3