Main Menu (Mobile)- Block

Main Menu - Block


janelia7_blocks-janelia7_node_tool_type_list | block
Laboratory Tools
node_title | node_title


node:body | entity_field

Detects and Measures Odors in Many Research Applications

The olfactometer, or “electronic nose,” detects and measures odors in many research and commercial applications. This odor-delivery system consists of one cassette or multiple cassettes connected in parallel. Individual cassettes act as a discrete air dilution odor-delivery system and include two mass flow controllers (MFCs) and gas lines for air and the odorant being analyzed. Multiple vials and pairs of on-off valves are arranged in an optimal performance configuration to complete the system. Nitrogen gas (N2) is used with this system to reduce odorant oxidation for better results.

To minimize travel distance within the system, individual cassettes are assembled from 5-valve Teflon manifolds. In addition, the system is designed for continuous airflow and washing to eliminate odorant residues; this decreases the likelihood of cross-contamination. Other design components that enhance the olfactometer’s performance include an electronic fast-pressure gauge to reduce pressure jumps, a vacuum line with regulator and MFC, and a clean-air line with MFC to better regulate flow and control concentration across a broader range. 

This system can be configured for digital or analog.  Furthermore, this olfactometer design enables odor flow concentration to be stabilized in approximately 0.5-1 seconds, offers minimal dead space, and takes advantage of thin Teflon tubing for more consistent results, good mixing, and rapid odor delivery.


  • Consistent system performance, good mixing, and rapid odor delivery with minimal pressure jumps
  • Continuous washing of odorant residues to minimize cross-contamination
  • Flexible format for multiple applications and optimal configurations in parallel
  • Digital or analog controllers
  • A relatively simple system to assemble, use, and maintain


  • Perfume, consumer product (clothing, automobiles, etc.), and polymer manufacturing, testing, quality control, and market research
  • Food and beverage safety and quality control
  • Environmental testing, safety, and odor control (manure, pollution, biodefense, forensics)

Created by:

Rinberg Lab


Free to make for Non-Profit Research by downloading designs at Flintbox link to the right.

Rights and designs available for Commercial License.

For inquiries, please reference:

Janelia 2012-020

node:field_label | entity_field
Detects and measures odors in many research applications. Consistent, rapid, effective.
individual_tool_resources | views
janelia_helper-janelia7_publication_list | block
janelia7_blocks-janelia7_tool_collaborators | block
janelia7_blocks-janelia7_program_administration | block


Michael Perham
addthis-addthis_block | block