bubble tube

bubble tube

[′bəb·əl ‚tüb]
(engineering)
The glass tube in a spirit level containing the liquid and bubble.
References in periodicals archive ?
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.
She said: "We've asked for a bubble tube bed and a net with twinkly lights in to hopefully help him sleep.
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 following items will ship separately from the rest of your order: Bubble Tube (BT3002), Bubble Tube Bracket (MS3706), Bubble Tube Platform (MS3702), Bubble Tube Mirror Pair (CF5921), Fiber Optic Lights (CF4877), Somatron Chair (VS4342), Somatron Amplifier (SP4988), Net Swing (VS3767) and Magic Air Electric Inflator/Deflator (BL4397).
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.
A major change in technology is the transition of coarse air bubble diffuser systems to fine bubble tube membrane diffusers in plants.
Features include an interactive bubble tube, which provides vibrations of bubbles in gentle colour changes, sets of mirrors, a sparkling net fitted with flashing white lights and a projector which beams slide images on to walls and ceilings.