facebook
twitter
rss
account
search
search
 

Ultrasound used in botanical research

Feb. 8, 2010 at 9:06 AM   |   Comments

MADRID, Feb. 8 (UPI) -- Spanish scientists say they've created an ultrasound technique to determine water content, thickness and other properties of leaves without touching them.

The researchers from the Spanish National Research Council's Institute of Acoustics in Madrid and the Agri-Food Research and Technology Center of Aragon, Spain, said their findings demonstrate that some properties of leaves -- such as thickness, density or compressibility -- can be determined with the method.

The technique involves radiating the leaves with broadband ultrasonic pulses that are emitted through the air from portable devices. In doing so, the leaves start to vibrate and an ultrasonic sensor very similar to the transmitter detects the waves. The signal is then digitalized and the researchers analyze the resonance range, which enables the characteristics of the leaves to be assessed.

The team reported the study recently in the journal Applied Physics Letters. The scientists said they also took cuttings of some leaves to ascertain water loss over time, and they observed variations in leaf resonance and even water mass loss as little as 1 percent. The details of that research will soon be published in the Journal of Experimental Botany.

© 2010 United Press International, Inc. All Rights Reserved. Any reproduction, republication, redistribution and/or modification of any UPI content is expressly prohibited without UPI's prior written consent.
Recommended UPI Stories
Featured UPI Collection
trending
Celebrity Couples of 2014 [PHOTOS]

Celebrity Couples of 2014 [PHOTOS]

Most Popular
1
Climate change, sea level rise threaten national monuments Climate change, sea level rise threaten national monuments
2
Study: Chimps are natural born killers Study: Chimps are natural born killers
3
Martian meteorite proof that Mars could host life Martian meteorite proof that Mars could host life
4
Say goodbye to Chinese sturgeon Say goodbye to Chinese sturgeon
5
Audi gets permit to test self-driving cars in California Audi gets permit to test self-driving cars in California
Trending News
Video
x
Feedback