Until fairly recent years, you would have used some sort of a chart recorder to record a set of ever-changing data for a given time interval. These mechanical devices can work with either a wind-up spring motor, or with an electrical motor. Sometimes, these devices may still be the most suitable for a given job. Largely, though, they’ve been replaced by data logger devices.
Data loggers are electronic devices that can have either their own built-in sensors, or the capability to connect to external sensors. Generally, they’re battery-powered, small, and have an on-board microprocessor. Some can stand alone, with their own displays and keyboards. Others can hold data in memory for later retrieval, usually by connecting it to a computer. On a computer, data may be either displayed via proprietary software, or via an Excel spreadsheet or graph. Newer devices may also have capabilities for wireless communications, allowing them to send constant streams of data to a base station.
Perform a web search, and you’ll be able to find a wide range of data logger. Prices range from the very inexpensive, to the very big-budget. There are plenty of vendors, peddling devices for pretty near any type of data that you’d like to track.
June 10th, 2010
Adriana Noton
Posted in
Tags:

