A data logger is a device that records data over extended time frames or at the point of location either by an integrated device or by sensors. Today they can be powered either by battery or by AC/DC. More recently they are also incorporating microprocessors into their circuitry. Most data loggers are designed to record temperature, pressure, and moisture and convey this data to a software program used to extract useful information.
Data loggers may come in many different varieties. Some have only a couple of standard input types and may require user manual input control. The most common type of InstrumentChoice data logger has a number of standard input types, including temperature, pressure, and humidity. It may also incorporate other standard or optional input types as described in the next few paragraphs. In some data loggers, additional inputs may be required, such as a voltage source, logic level, clock, user-defined commands, etc. These additional inputs provide greater control and flexibility in the software, which controls the logger.
Data loggers which run on batteries rather than on AC or DC power supplies are available. They have a wide range of operating conditions and are suitable for a wide range of conditions. The majority of these data loggers run on a single processor unit. This means that their performance and life span are near related to the amount of memory capacity available in the computer system that runs them. Memory capacity refers to the amount of memory that the computer systems can access at one time.
Most data loggers provide the ability to read and store high-quality temperature and relative humidity measurements. The relative humidity is another term for moisture, usually used as a quality assurance tool in product specification and InstrumentChoice data logger applications. The relative humidity is typically a good indicator of actual humidification or dryness in a particular area. However, low humidity may also affect some devices such as fire extinguishers and some medical apparatus.
Most data loggers can be configured to capture data in different formats. These formats include standard formats such as bar charts, point charts, histograms, scatter plots and tables. An InstrumentChoice data logger can record a wide range of measurements with almost any desired number of inputs. Most data loggers provide some standard information, including temperature, humidity, current temperature, dew point, vapour pressure, space temperature, gravitation, solar radiation, ground control temperature, and many other input parameters. There are also some standard procedures which must be followed when using data collection and monitoring equipment.
Data loggers are very useful for a wide range of applications. They can measure temperature, moisture and relative humidity. They can also measure and record other parameters, such as wind speed, sun exposure, and barometric pressure. Their ability to run both continuously and periodically makes them valuable components of any environment monitoring system. The main benefit of data loggers is their high reliability. Irregularity in the input parameters will seldom affect the collected data, and the results are usually reliable.