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Coriolis Component of Acceleration Manufacturer,Supplier and Exporter in India

Product Code : EL-TOMLE-10013
Jlab Export is a leading Coriolis Component of Acceleration Manufacturer,and suppliers in India

Water flowing out along a pair of rotating tubes stands in for a slider moving along a turning link in this apparatus. The rotating block carries two arms in opposite directions, each 300 mm long. A 0.5 HP swinging-field DC motor spins them and also works as a dynamometer, so the torque on the tubes can be read.

Specifications

Principle	Hydraulic analogy of a rotating slider
Rotating arms	2, in opposite directions, 9/6 mm dia., 300 mm long
Motor	Swinging field DC, 0.5 HP, also used as a torque dynamometer
Flow measurement	Rotameter
Water supply	Monoblock pump
Main tank	Fibreglass lined, Perspex window in the top cover
Control panel	Speed control unit, speed indicator, switches
Frame	Rigid support frame
Power supply	230 V AC, single phase, stabilised
Floor space	1.5 x 1.5 m
Minimum order quantity	1 unit
Dispatch time	Usually 14–18 working days
Manufacturer	JLab (Jain Laboratory Instruments Pvt Ltd), Ambala, India

Measuring the Coriolis Component

A slider moving at velocity v along a link that turns at ω has a Coriolis component of acceleration of 2 ω v, at right angles to the link. Here the water is the slider. Its velocity along each tube comes from the rotameter flow rate and the flow area of the tubes, and ω from the speed indicator. The Coriolis force on the moving water puts a torque on the rotor, read on the swinging-field motor and compared with the value worked out from 2 ω v.

Experiments at Different Speeds and Flows

Students hold the flow steady and step up the arm speed, recording the torque at each speed. Then they hold the speed and vary the flow. If the torque comes from the Coriolis effect, both plots are straight lines. For the calculation they measure the tube bore with a Vernier Caliper, and they check the speed indicator with a Stroboscope. The Perspex window lets the class watch the water while the arms turn.

Frequently Asked Questions

Why is a no-flow torque reading taken first?
With the pump off there is no sliding velocity, so the Coriolis component is zero. The motor torque then only covers bearing friction and air drag on the arms. That reading is taken off each later torque reading before it is compared with theory.

Why does the apparatus use water instead of a sliding block?
Water flowing along a rotating tube behaves like a slider moving along a turning link, and its speed is set and measured with the pump and rotameter. The Coriolis force of the moving water shows up as a torque on the rotor, which is easier to measure than the acceleration of a small block.

How is the torque measured?
The DC motor is a swinging-field type: its field casing is free to turn, so the reaction torque on the casing equals the torque driving the arms. Reading that reaction gives the torque applied to the rotating tubes.

What services does it need?
A stabilised 230 V single-phase AC supply and a floor space of 1.5 x 1.5 m. Fill the main tank with clean water before starting the pump, and bring the arms up to speed gradually with the speed control unit.