Buying Your Data Acquisition System!There are a number of Data acquisition systems available over the net. There are companies that make part of the data acquisition and there are others which make the peripherals that are associated with them. In the normal work, you would employ a transducer that would pick up the entity that has to be measured or captured and convert it into a form that is palatable to the digital processing circuitry. You will have to use an appropriate transducer and then there should be an A to D converter for converting the signals thus obtained into a digital form. You need to ensure that this digital format matches with the expected format of the data in the computer or the microprocessor or any other processing device that you might be using. The selection of the transducer will be dependent on a number of factors. Data acquisition system would have a better accuracy if you select the right kind of transducer. The accuracy of the transducer will be the one that decides on the way the accuracy will be reflected in the entire work. Therefore, the nature of the transducer that is used would depend on your final accuracy and the requirements too. The range that can be used to measure the system, the processing systems and their capabilities will all help in identifying the right kind of transducer. Therefore, before you embark on the mission to identify the right transducer, find out your Data acquisition system specifications and ideally freeze the needs too. Only then, what ever decision that you might be taking on the transducer selection will be appropriate. Next in the line is the analog to digital converter. They are also an important interfacing component that exists between the transducer and the system that is going to process on the information. This would have to be fast enough and should also be able to support the byte size that the processing device might be looking for. All these together will be able to help you identify the right ADC for your requirements. This can also be finalized only based on the needs of your Data acquisition system. Therefore, here too you need to finalize on your needs for your Data acquisition system before going ahead to select the right Analog to Digital converter. Now all these components are available on line. You can buy your transducers online as well as your ADCs too. But the, you need to be pretty clear about the requirements of your Data acquisition system. If that is not firmed up, you will not be able to finalize the component specifications and you might end up with a component which might not fit your needs. Clearly identify and mark out the needs of your system before going ahead and hunting for them. Once you are through with this, get the right site from which you can buy. |