How Do I Get The Right Data Acquisition Hardware?On most of the projects, you would have found that there are plethoras of instruments and Data acquisition hardware available in the market. The choice among this is what matters most. How do you go about selecting the right item for your purpose from this large list? What makes your needs taken care? How do you avoid making a wrong choice and what do you do if do make one? Well, there are a large number of questions that you might really be posing. Here are a few answers, may be not to every one of them. Identify and list all those Data acquisition hardware that would match your needs. But then, most often the mistake that we make at this juncture is not to make an exhaustive needs list. For instance, you might have marked out that you are in need of eight channels of communication; whereas you might find that the actual requirement of the project might be twelve channels and you should have selected the sixteen channel one. Well, then you add up another multiplexer beyond it to take in the additional channels you want. You have done a correction on your Data acquisition hardware to take care of the mistake in your choice. Really speaking it was not an error of choice; it was an error of need. Your need specification was not clear. Therefore, it is very important that you have all your needs stated unambiguously. With that, be known, that you have removed one of the major sources of errors in product selection. The second place that we generally make a mistake is in the choice of the product. When you are selecting the Data acquisition hardware, one of the common methods is to go through the features list and the operational instructions of the product and ensure that it matches our needs. You will find that there are other features or lack of features which naturally, manufacturer would not have mentioned. No body mentions what their product does not have. But in your selection process, you might have assumed that some of these features are standard in any device! There is no such thing as a standard feature that goes unmentioned in the product specification. You need to ensure that every one of the feature is listed. If it is not listed, ask for it and find out whether the Data acquisition hardware that you want meets up with the needs of the project at hand. With these two major error generators out of the way, you are on your way to successfully select the product that you want. The Data acquisition hardware that you choose might have its own selection criterion. That has to be adopted with out any wavering. Only then every one of the features that you are looking for will be present in the product that you are buying. |