Olfactometer

An olfactometer (/ɒlfækˈtɒmɪtər/; from Latin: olfactus, "smelled" and Greek: metron, "measure") is a scientific instrument used to measure the sensitivity of the sense of smell.

Etymology

The term "olfactometer" is derived from the Latin word olfactus, which means "smelled", and the Greek word metron, which means "measure". This term accurately describes the function of the device, which is to measure the sensitivity of the sense of smell.

Function

An olfactometer works by releasing controlled concentrations of an odor into a steady stream of clean air. The subject breathes in the air, and the sensitivity of their sense of smell is determined based on their ability to detect the odor. This can be used in various fields of research, including neuroscience, psychology, and environmental science.

Types

There are several types of olfactometers, including static olfactometers, dynamic olfactometers, and portable olfactometers. Each type has its own specific uses and advantages, depending on the needs of the research.

Static olfactometers are typically used in laboratory settings. They allow for precise control over the concentration of the odor and the flow of air.

Dynamic olfactometers are used when the odor concentration needs to be changed rapidly. They are often used in studies that involve tracking changes in odor sensitivity over time.

Portable olfactometers are used for field studies. They are designed to be easy to transport and set up, making them ideal for studies that need to be conducted outside of a laboratory setting.

Related Terms

Olfaction: The sense of smell.
Odor: A substance that is perceived by the olfactory system.
Olfactory bulb: A structure in the brain that processes information about odors.
Olfactory receptor: A protein that binds to odor molecules and triggers a response in the olfactory system.