BIOPAC® Systems, Inc. Logo

160 – Gas Analysis Module Response Time

A major factor affecting breath-by-breath respiratory gas measurements is the response time of the O2100C and CO2100C modules. Although the CO2100C module has somewhat faster response times than the O2100C module, both can seemingly create obstacles when performing relatively high-speed breath-by-breath ventilation measurements.
 
Typically, the O2100C and CO2100C modules are used in conjunction with a mixing chamber and non-rebreathing “T” valve to measure varying gas concentration levels as a function of time. The mixing chamber and “T” valve effectively construct a smoothing filter for expired gases. Because the gas concentrations can change only gradually in this configuration, it is simple to monitor the changing oxygen and carbon dioxide levels present in the mixing chamber.

An alternate, and more difficult, measurement scenario is where oxygen or carbon dioxide concentrations need to be measured exactly, at particular points during a single respiration. In this case, it is very important that the module be able to keep up with the expected rate of change of gas concentration.

This application note will concentrate on methods to improve the response time of the O2100C module. When necessary, the same principles will apply to enhance the speed of the CO2100C module.

Associated Applications

Spotlight On
free BIOPAC webinar

Understand Human Emotions with Facial EMG

In this online webinar, Frazer Findlay, CEO of BIOPAC, will explain how to set up a Facial EMG study and record great Facial EMG data using the newest Smart Amplifiers. He will demonstrate where to place the electrodes and best practices for recording signals from the muscles tied to our emotions.
Join us Thursday, April 25th
8:00 AM to 9:00 PM PT

Register Now
Latest News

Neuromarketing Interview | How VR Can Improve Marketing Research

Alex Dimov, BIOPAC Sales Executive, was interviewed at the Neuromarketing World Forum by Inside Marketing to discuss how virtual reality can improve marketing research. Alex explains how VR can be used to present virtual iterations of a product to save time and money, and notes that measuring physiological responses adds lots of information for product and messaging […]

BIOPAC Launches New “Smart Amplifiers”

February 14, 2019 BIOPAC Systems, Inc. Goleta, CA USA New “Smart Amplifiers” make it easier than ever for life science researchers to get great data Fast Setup & High Performance Smart Amplifiers improve performance by amplifying the physiological signal close to the subject, which allows a high-level voltage connection to the data acquisition system and reduces noise artifact. […]

Read All
Request a Demonstration
Request a Demonstration