A digital timing system for a small animal respiration pump.

Area of Science:

• Physiology
• Biomedical Engineering
• Instrumentation

Background:

• Accurate control of airflow is crucial for small animal pulmonary function testing.
• Existing timing systems may lack the required precision or flexibility for detailed respiratory measurements.

Purpose of the Study:

• To develop a digital timing system for precise airflow control in small animal respiration pumps.
• To enhance the resolution and flexibility of timing parameters in pulmonary measurements.

Main Methods:

• A modular digital timing system was designed using complementary metal-oxide-semiconductor (CMOS) technology.
• The system utilizes thumb-wheel switches for selecting three independent timing periods, each up to 10 seconds.
• Millisecond resolution was incorporated for precise timing control.

Main Results:

• The developed system provides millisecond resolution for airflow timing control.
• The modular CMOS design minimizes interconnections, simplifying the system.
• The system successfully controls airflow for small animal pulmonary measurements.

Conclusions:

• The digital timing system offers a precise and flexible solution for controlling airflow in small animal respiratory studies.
• The modular design allows for scalability to accommodate more timing channels, longer periods, and higher resolution.
• This instrumentation advancement can improve the accuracy and scope of pulmonary research in small animals.