1.Ultrasonic Flowmeter is a type of flowmeter that determines the flow velocity of fluid using ultrasonic soundwaves . 2.Ultrasonic Flowmeter works on the principle of Transit Time Difference Method , where we use Ultrasonic Transducers to emit and detect the ultrasonic waves.

1. ULTRASONIC
FLOWMETER

2. Ultrasonic Flowmeter

3. Principle : Transit Time Difference Method
 Flow velocity of Fluid is directly proportional to
difference in time taken by ultrasonic waves to traverse
between the transducers.

4. Formulae:
v = (Δ TOF) 𝑐2
/ (2D)
Δ TOF = Difference in Time intervals [ T1-T2 ]
v = Average Flow Velocity of Fluid
c = Velocity of Sound in Fluid Medium
D = Diameter of pipe

6. Design

7. Design :

8. Working model

9. Procedure
 Open the Valves accordingly to ultrasonic flowmeter
setup.
 Switch on the power supply so that water gets
pumped into the ultrasonic flowmeter setup .
 First Perform ZERO FLOW TEST for Confirmation.
 Take the reading displayed on the Software and also
note down the Loadcell reading .
 Compare both the flow rates.

10. Requirements
 1.5 hp water pump - Rs.7600
 Two ultrasonic transducers
 Weighing Machine
 TDC1000_TDC7200 EVM Kit - Rs.8050
 Pipe of 1 inch Diameter
 Four control Valves
 Two tanks(water sump)

11. Work Progress :
 We have finalized the design model along with its
frame .
 Presently We were working on the functioning of
TDC 1000_TDC7200 EVM Kit and how to run this
on the Software.

12. Difficulties :
 Mounting the transducers exactly at 45º angle to the
pipe.
 Inserting the Transducers and sealing it firmly without
any leakage, without disturbing the flow parameters.

13. Improvements :
 We can improvise this by, replacing Laptop interface
by rasberry pi minicomputer with an LCD Display.
 Acrylic Tank with calibration scale helps the user to
calculate the flow rate manually.