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206A: Olfactometer

The 206A Olfactometer provides reliable odor generation for demanding olfaction experiments. The 206A can be configured with 4, 8 or 12 odor vials for maximum flexibility. Careful fluid design ensures repeatable odor profiles generated with minimum delay time between activation and arrival of the odor at the subject.

The 206A delivers odors of the desired concentration at the precise time required for studying behavioural response, central processing of olfactory information in the brain and for sensory physiology.

The design was originally developed by Prof. Rinberg and is licensed from HHMI Janelia Farm. The 206A olfactometer performs multiple odor applications during an experiment without changing the odor vials.

206B Olfactometer Expansion Module

4 channel expansion module, expand your olfactometer to 8 or 12 odor vials

  • modular design permits configuration with 4, 8, or 12 odor vials
  • Arduino software controller for maximum programming flexibility
  • three mass flow controller design ensures repeatable odor profile
  • 25ms odor switching time due to final valve located at animal chamber
  • easily integrated with Aurora Scientific 200B Fast Response Olfaction Sensor  for odor verification
  • continuous washing of odorant residue to minimize cross-contamination

200B – Characterizing Olfactometers

CHALLENGE

In 2011 Prof. Burton Slotnick approached us with a need to characterize an olfactometer of his design. Prof. Slotnick was a pioneer in olfactometer design for studying behavioral and neurobiological aspects of odor learning in rats and mice. The olfactometer described in his 1999 paper co-authored with Natalya Bodyak was the basis for the Knosys olfactometer which he now wanted to characterize. For this work he required a gas sensor that could respond fast enough to measure the arrival time and concentration profile of his olfactometer. He also required software that could record the gas sensor signal and correlate these signals with the timing pulses generated by the olfactometer.

SOLUTION

Aurora Scientific knew that the 200B miniPID could perform the characterization required but at the time software was not available. To solve this our R&D team wrote a LabVIEW program that collected and analysed data from a miniPID sensor. The software (210A: GasTrack) performed sensor calibration, data collection, background signal subtraction, conversion of sensor output to concentration, recording of timing signals and plotting of results.

RESULTS

A miniPID sensor and data acquisition system were provided to Prof. Slotnick and he was able to use it to measure the arrival time and concentration profile of the odor pulses produced by his olfactometer. The GasTrack software became commercially available to accompany the 200B miniPID gas sensor as a complete, easy-to-use data acquisition system.

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