Abstract
This article describes the design and application of a non-contact ultrasound air instability compensation transducer. The spatial impulse response approach was used to simulate the reflected energy from the reference in the path of the ultrasound from the non-contact transducer to compensate for the error provided by the instability of the air media during measurements. Based on simulation, a model was suggested for the design of a reference for the 1.0 MHz 12.5 mm diameter non-contact ultrasound transducer. Simulation results highly correlated with the measured data to provide R2 values greater than 0.99. The improved stability of the thickness and ultrasound velocity measurements of polystyrene and cheddar cheese was demonstrated with a constructed air instability compensation transducer. Results indicate that the non-contact air instability compensation ultrasound technique has excellent potential for non-destructive, rapid, and precise quality measurement and monitoring in varying environmental conditions, as in a food manufacturing plant or a process industry.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 901-909 |
| Number of pages | 9 |
| Journal | Transactions of the American Society of Agricultural Engineers |
| Volume | 46 |
| Issue number | 3 |
| DOIs | |
| State | Published - May 2003 |
| Externally published | Yes |
Keywords
- Air instability compensation
- Computer simulation
- Non-contact ultrasound
- Spatial impulse response
ASJC Scopus subject areas
- Agricultural and Biological Sciences (miscellaneous)