A new ultrasonic meter is described which uses a linear spark as the source of the ultrasound pulse. Two quartz crystals downstream and upstream of the source act as receivers. The time taken by the pulse to reach the receivers is determined by the velocity and temperature of the gases. The flow properties at the intake and exhaust of an engine are measured using this meter.

Panappakkam Arumugam Janakiraman

M. K. Gajendra Babu

Calibration

Design

Operation

PRINCIPLE

FLOWMETERS - ULTRASONIC

Internal combustion engines

IIT Madras is a public technical and research university located in Chennai, Tamil Nadu. Founded in 1959, it is recognised as an Institute of National Importance.

IIT Madras has been ranked as the top engineering institute in India for four years in a row by the National Institutional Ranking Framework of the MHRD

It currently offers undergraduate, postgraduate and research degrees across 16 disciplines in Engineering, Sciences, Humanities and Management. About 596 faculty belonging to science and engineering departments and centres of the Institute are engaged in teaching, research and industrial consultancy.

IIT Madras

Measurement of pulsating temperature and velocity in an internal combustion engine using an ultrasonic flowmeter

Journal of Physics E: Scientific Instruments

Journal	Journal of Physics E: Scientific Instruments
ISSN	00223735
Open Access	No