bubble tube

bubble tube

[′bəb·əl ‚tüb]
(engineering)
The glass tube in a spirit level containing the liquid and bubble.
References in periodicals archive ?
"Their gasps of excitement and awe when the bubble tube was turned on brought tears to my eyes, it was a really magical moment and reinforced just how valuable equipment like this is."
Tenders are invited for Fine bubble tube diffuser 63 mm
James, an IT support technician for a major high street bank in Milton Keynes, spotted the innovative addition to Vicarage Road's furniture and decided to investigate the bubble tube, bean bags, fibre optic features and oasis of calm.
Further miniaturization merged electronic theodolite and EDM and gave birth to modern day all too famous Total Station.Vertical (distance) measuring progressed from early Egyptian A-frame to U-tube to leveling instrument fitted with telescope and bubble tube the famous Dumpy Level.
The generous donation was used to purchase a Sensory Rover unit, which is a four foot bubble tube with light displays, music and aromatherapy.
The castle and its parent company Merlin's own charity, Merlin's Magic Wand, funded the sensory room - which includes a sound board, projections of Warwick Castle's birds of prey and a bubble tube built into a replica of Guys Tower.
The equipment being provided with the help of the donation will include a touch activated bubble tube, a UV lamp, soft play items and a play tunnel.
It is fitted out with the customary bubble tube, very popular, and fibre optic strands with pinpoints of colour changing lights.
Common resin tests include measurement of viscosity, usually by bubble tube (ASTM D1545, recently revised), percent nonvolatile (D2369), density as weight per gallon (D1475), color, and IR analysis to see if it is the correct resin.
* A bubble tube, which is a large, freestanding, acrylic tube in which bubbles flow upward with gently changing colors for visual stimulation.
Variations in the final bubble tube radius [r.sub.L] (that is, the dimensionless radius at the top of the freeze zone Z = L) were computed for oscillations in the heat transfer coefficient with frequency v and amplitude of 4% or 10% of the steady value (taken as 50 W/[m.sup.2]-K).