Digital signal conditioning

In digital instrumentation system, especially in digital electronics, digital computers have taken a major role in near every aspect of life in our modern world. Digital electronics is at the heart of computers, but there are lots of direct applications of digital electronics in our world.All these digital electronics need data to be presented to them in a digital format (i.e. the data have to be digitally conditioned). This is called digital conditioning.Since computers are electronics devices, all the information they work with has to be digitally formatted. Therefore, if they are used to control a variable such as temperature, then the temperature has to be represented digitally. That's why we need digital signal conditioning to condition process-control signal to be an approximated digital format. In digital instrumentation system, especially in digital electronics, digital computers have taken a major role in near every aspect of life in our modern world. Digital electronics is at the heart of computers, but there are lots of direct applications of digital electronics in our world.All these digital electronics need data to be presented to them in a digital format (i.e. the data have to be digitally conditioned). This is called digital conditioning.Since computers are electronics devices, all the information they work with has to be digitally formatted. Therefore, if they are used to control a variable such as temperature, then the temperature has to be represented digitally. That's why we need digital signal conditioning to condition process-control signal to be an approximated digital format. Digital signal conditioning in process control means finding a way to represent analog process information in digital format.Use of in control system is particularly valuable number of other reasons, however: The use of digital techniques in process control system hat process variable measurements and control information be encoded into a digital form. Digital signals themselves are simply two-scale (binary) These levels may be represented in many ways. For example, two volts, two currents, two frequencies etc. Given the simple binary information that is carried by signal digital, it is clear that multiple signals must be used to describe analog information. Generally, this is done by using an assemblage of digital levels to construct a binary number, often called a word. The individuals digital levels are referred to as bits of the word. Thus, for example, a 6-bit word consists of six independent digital levels, such as 101011 2 {displaystyle 101011_{2}} , which can be thought of as six-digit base 2 number. An important consideration, then, is how the analog information is encoded into this digital word.