Data Logging

Bryce Crutcher and Emily Hendricks

Definition of Data Logger: An electronic instrument that records measurements of all types at set intervals and are used in outdoor, indoor, and underwater environments. Allows things to be precessed faster and more efficiently then by hand or mind, so that people may focus on other things.

Examples: Heart rate monitor, Air pressure monitor, water pressure monitor

Heart Rate Monitors- How they work

Monitors consist of built-in microprocessors which analyze the EKG signal to determine heart rate, and pick up the electric activity of your heart. Transmitter then sends the information to the display at the same rate that the heart beats to in turn provide the electrocardiograph.

Most Data Loggers by taking in impulse or movement or any stimulus, (such as the electric impulses in the heart) and processing the information then displaying it to the user. They consist of:

Sensor or Laser

and a Transmitter


Detects signal from stimuli and transfer the information in various ways. For instance, a light sensor causes a reaction when the components detect light above what is acceptable. A pressure sensor senses weight or pressure.


Transmitters work by taking information from the sensor and amplifies it, and uses radio waves to transfer the information to the display screen in a graphical and understandable way, programmed by humans to say certain things depending on the signal received.

Comment Stream