As the name clearly suggests, EMI stands for Electromagnetic Interference. It is a generalization of an older terminology RFI (Radio Frequency Interference). EMI can be defined as an electromagnetic or electro static disturbance that causes malfunctioning or undesired response in one or more electronic system, equipment or circuit. Recent studies and continuing evaluations have verified […]
EMI coupling methods
EMI is the short form of Electromagnetic Interference. It is a generalization of an older terminology RFI (Radio Frequency Interference). Electromagnetic Interference can be defined as an electro-static/electro-magnetic disturbance which results in malfunctioning or undesired response in one or more electronic system, equipment or circuit. In this post, we will focus on the different EMI coupling […]
Types of EMI
EMI stands for Electromagnetic Interference. It is a generalization of an older terminology RFI (Radio Frequency Interference). EMI can be defined as an electromagnetic or electro static disturbance that causes malfunctioning or undesired response in one or more electronic system, equipment or circuit. In this post, we will focus on the different types of EMI. […]
Wee Megger
Wee-Megger is one of a kind of self-contained-high-generator and is very useful for finding an equipment’s insulation as well as its large resistive value. As the current generated by a battery driven test equipment is very low, it is highly difficult and less accurate to find a large resistance with that. To correctly measure it, […]
Signal transmission
As mentioned in my earlier posts, the i/p instructions are fed to i/p unit. To know about it in details, refer https://electricalfundablog.com/blog/instrumentation-control/process-control . Now, lets discuss about how Signal transmission happens to CPU. During the commencement of an instruction cycle, the Central Processing Unit collects each and every i/p instructions from the i/p unit and […]
Electricity around the world
Have you ever imagined how much adversity is there in electricity around the world? All countries follow some electrical standards and their electrical equipments are designed as per their electrical standards. It is why we should know about the electricity around the world. Almost all electrical equipments are designed to work with minor voltage deviation […]
Responsibilities of Reliability Engineer
One of the most important responsibilities of Reliability engineer is that he has to work in coordination with other Project engineers so as to ensure reliability, maintainability, availability, parts control, obsolescence management, configuration control etc of new product designs as well as improved designs of old products.
Role of Reliability Engineer
The main role of Reliability Engineer is identification and management of the reliability risks that may have a negative impact on production or post production operation of the product. This can be further split into three main sub categories i.e. Loss identification and reduction, Risk management and Product life cycle support management. Loss Identification and […]
Difference between Quality and Reliability
Quality is a much broader aspect than Reliability. Quality covers almost everything from organisation, managements, service, procedures, people, product, product-life etc. In simple words, Reliability is only a subset of quality, the others being performance, consistency, efficiency, user experience etc. Whereas, Quality is the measure of conformance to laid down product specification. Not understood? Tricky […]
Advantages of Reliability
Why we need to understand and predict Reliability of a product ?? Why to put extra cost and extra efforts in understanding it?? Once the product is manufactured and used, We can come to know about its reliability. Then Why to make it more complex? Why this, Why that?? Well… My friend, Here comes the answer. Though there are many advantages of Reliability as a very crucial product aspect, We are listing few of them.
Natural sources of EMI
Natural ElectroMagnetic Interference (EMI) is caused by natural sources of EMI such as rain spray, storms, solar radiation, electrical storms, and cosmic noises. Natural sources of EMI are broadly classified in two main categories: 1. Terrestrial source: Such type of Natural sources of EMI include natural emissions coming from earth’s surface. These sources are : […]
Battery
A Battery is an electrochemical system that converts chemical energy into electrical energy. Battery-Cells are the most basic individual component of a battery. In another words, it can also be defined as : Battery is an electrochemical device that converts chemical energy into electricity by using a galvanic cell. We mentioned Galvanic cell. Do you […]
Capacitor charging and discharging cycle
In our previous posts, we discussed about the basic theory and working of capacitor. In this post, we will understand about “ Capacitor charging and discharging cycle ”. Capacitor charging and discharging cycle provides a better understanding of a capacitor function. Lets take an example of a capacitor circuit in which there is no resistor/resistance. […]
PLC blocks
The various PLC blocks and their functions are as follows : 1. In-put Unit : It acts as an interfacing link between the Input instructions and the Central processing unit. The analog input generated by the sensor/transducer/limit-switch etc are fed to the input unit. The input unit then performs the conversion of this analog i/p […]
What is RS 232 ?
RS 232 stands for Recommended standard number 232. RS-232 ,as an interface, has been a standard from many years for interconnecting a Data Circuit Terminating Equipment (DCE) with a Data Terminal Equipment (DTE). Various forms of RS 232 interface are available in the market. However, being different in design and configuration, they are easy in […]
Shock Pulse Tester
A Shock-pulse-tester is a very useful test equipment for determining the bearing’s inner state, especially when it is not possible to open it. Here, we will talk about T/2000 series type of Shock-pulse-tester. It is multifunctional and can be used as Shock-pulse-tester, Vibration-meter and as a Tachometer as well. This test-equipment is broadly utilised for […]
Signal Generator
As the name suggests, The Signal generator is an electronic equipment which has the ability to produce a Sine-wave signal (Volt) and has a wide range for both frequency/amplitude. It can generate desired signals with a remarkable accuracy. Because of this property, this equipment is utilised to generate desired test-conditions so that it can be […]
Settling Period of Gyro
In our earlier posts, we discussed about the free gyro, Gyroscope conversion and its damped/undamped oscillations. In this post, we will discuss about Settling period of Gyro. When the compass is settled, the spin axis has a constant tilt. The delaying action of the damping arrangement will therefore have no effect as there is no […]
Undamped Oscillation of Gyro
In our earlier posts, we discussed about the free gyro, Gyroscope conversion, damped oscillation and its settling period. In this post, we will discuss about undamped oscillation of Gyro. The free gyro does not contain any instrument which may be called a compass. The direction of the spin axis relative to the earth’s’ surface continually […]
Probe controlled Degaussing system
Principle : Under Normal operating conditions the degaussing system is automatically controlled. However, if required, it may also be manually controlled by accepting a few restrictions. The external field changes acting on a ship can only be compensated in an optimum manner by a probe controlled degaussing system. It is therefore , we can say […]