In the field of measuring the various quantities, technology has made it possible to take important steps forward. Over the years, analog instruments have been joined, and in some cases replaced, by their more modern and performing digital versions; in addition, highly innovative solutions have been introduced for monitoring and recording values over time.
This is precisely the main function of the data loggers, small devices equipped with a microprocessor that are able to measure, analyze and monitor the desired size . RS Components, a leading company in the supply of industrial and electronic components, has recently unveiled the models that make up its new range of devices for data acquisition and recording.
What is it for and how to choose a data logger
The data loggers are distinguished from each other on the basis of the sensor they integrate and the type of detection they are able to perform. Among the various solutions available, there are models capable of detecting, analyzing and recording temperature, humidity, pressure, acidity, light intensity, sound, current and voltage. There are also specific devices for measuring the time of use.
To identify the data logger that best suits your needs, it is possible to filter the various models based on their characteristics. Just set the brand, the measurement parameters, the sensor type, the interface type, the communication protocol, the temperatures or other maximum and minimum values supported, the type of display, the battery life, the resolution, the precision and all other desired qualities.
The operation of the device
Anyone who sees a data logger for the first time might define it as a technological box. It is a compact device , which houses a battery, a sensor (there are also models with an external sensor), a microprocessor and a memory. Some devices are also equipped with a display and a push-button panel, while others must be connected to a computer to be managed using specific software.
The sensor is able to measure the desired size ; the detected analog signals are then converted into digital signals by the microprocessor and stored in the memory. All these operations are performed at regular intervals: the various surveys are then summarized in a table or graph in order to be studied and analyzed using the appropriate application.
How to use a data logger and possible applications
The use of modern data loggers is quite intuitive . First you need to configure the parameters and start the registration. The device must be positioned in such a way as to allow the sensor to do its job and then it must be left in operation for the entire period that is to be considered in the analysis. At the end of this time interval, the data logger must be connected to a computer or other compatible device to download the recorded files and start the analysis software.
Even if the data saving format can take place in different formats, in the last period we are moving towards the standardization of the XML protocol. The data loggers can be used in various situations. Just to give some examples, at an industrial level they can be useful for monitoring compliance with the parameters in the cold chain or the maintenance of ideal conditions inside the silos; at home and in the workplace, the device can be useful for detecting and monitoring air quality and indoor temperature.
The article Measuring instruments: RS Components' new range of data loggers comes from Tech CuE | Close-up Engineering .