Windmill Software Ltd
Data Acquisition Intelligence

September 2010

The Newsletter for PC-Based Data Acquisition and Control
Issue 146     September 2010
--------------------ISSN 1472-0221----------------------

Welcome to Monitor.  This month, how researchers used 
the free Windmill software to measure oxygen consumption.  
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* Windmill Notes: Monitoring Oxygen Consumption of Fish
* Data Acquisition and Control Exhibitions
* DAQ News Roundup

Windmill Notes: Monitoring Oxygen Consumption of Fish

Free software helps monitor fish in polluted waters.

Copper contaminated water harms edible fish like carp. 
Even at very low concentrations, copper is more toxic 
to fish than cadmium. Copper is widely used though in 
industry and agriculture and is often found in 

Damage studies have often been done on fish fed 
starvation rations, as this avoids the accumulation 
of waste products.  Researchers at the University 
of Antwerp, however, wanted to know whether the amount of 
food fed to a fish made a difference to its ability to 
cope with pollution.  Will a good food supply, 
normally helpful to fish health and growth, become a 
threat in less-pure waters?

The scientists monitored fish fed on high and low 
rations in pure and copper-contaminated waters.  The 
fish were placed in airtight respirometers and 
oxygen concentration monitored by oxygen electrodes 
from WTW.  These communicated with a PC over RS232 and 
from there the Windmill Logger program continuously 
recorded oxygen concentration (mg/l) over a 
2 hour period. Logging happened after 12 hours, 
24 hours, 72 hours, weekly then fortnightly.

The researchers found that high ration fish increased 
their oxygen consumption in both contaminated and pure 
water.  High oxygen consumption means more food will be 
eaten and more copper metabolised.  During unfavourable 
environmental conditions then, a good supply of food 
will in fact prove harmful.

Monitor subscribers can download version 4.3 of the Windmill 
software for free. A newer version of the data acquisition 
software suite is available from

Further Reading:
Kunwar PS, Tudorache C, Eyckmans M, Blust R, De Boeck G. (2009) 
Influence of food ration, copper exposure and exercise on the 
energy metabolism of common carp (Cyprinus carpio). 
Comp Biochem Physiol C Toxicol Pharmacol. 149(1):113-9

Data Acquisition Exhibitions and Conferences

The quarterly update of data acquisition and control 
exhibitions around the world.

M-Tech Osaka
6-8 October
Osaka Japan
Includes test, measurement and sensors.

Automation Austria
12-15 October
Vienna Austria
International fair for industrial automation, drive and motion control.

Automotive Testing Expo North America 2010
26-28 October
Detroit USA
Areas covered include: engine and emissions analysis, vibration testing, 
environmental testing, data acquisition, materials testing, sensors 
and transducers, quality testing and inspection.

26-29 October
Madrid Spain
International exhibition of electrical and electronic equipment.

Scientific & Technological Innovation Show
9-13 November
Shanghai China
For scientific, measuring, laboratory instruments.

30 November - 3 December
Lyon France
Techniques for preventing and treatement of pollution of all kinds.

DAQ News Roundup

Welcome to our roundup of the data acquisition and 
control news.  If you would like to receive more 
timely DAQ news updates then grab our RSS newsfeed 
at  Read for notes
on how to display the live news on your own web site.

Why the Stuxnet worm is like nothing seen before 
   The Stuxnet worm is the first of its type known to be 
   capable of seizing control of industrial hardware: 
   those in the know have been expecting it for years.
   Source: New Scientist
Home's electrical wiring acts as antenna to receive low-power sensor data
   Using a home's electrical wiring as a giant copper 
   antenna allows for wireless sensors that can 
   communicate over a whole house and run for decades 
   on a single watch battery. The device could be used for 
   low-cost medical monitoring or home sensing systems.
   Source: University of Washington

Standards on the map
   Launched this month, the Global Standards Information 
   Web site gives latest product standards-related 
   resources by country.
   Source: NIST

Tire Pressure Monitoring Systems in Cars May Compromise Privacy
   New wireless technologies in cars may compromise a  
   driver's privacy and pose a security threat, warn  
   researchers at Rutgers University.  Modern vehicles  
   are increasingly equipped with wireless sensors and  
   devices, such as systems that monitor air pressure  
   inside tyres and trigger dashboard warnings if tyre  
   pressure drops. These wireless signals can be  
   intercepted 37 m away from the car using a simple  
   receiver. Since signals in tyre pressure monitoring  
   systems include unique codes from each wheel sensor,  
   this raises concerns that drivers' locations could  
   be tracked more easily than through other means.
   Source: Rutgers University

Internet is Coming to Cars
   As Internet became more common in homes and offices,  
   it was widely expected to be only a matter of time  
   before it would be common in light vehicles.  Despite  
   this, Internet access in light vehicles remains  
   relatively rare in most countries today.  A recent  
   report from IMS Research claims that this is  
   about to change
   Source: IMS Research

* Copyright Windmill Software Ltd
* Reprinting permitted with this notice included
* For more articles see

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An archive of previous issues is at
and an index of articles at

Windmill Software Ltd, PO Box 58, North District Office,
Manchester, M8 8QR, UK
Telephone: +44 (0)161 833 2782
Facsimile: +44 (0)161 833 2190
E-mail: [email protected]


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