Amol Deshmukh’s Post

❔ What is Electromagnetic Interference ❔ Electromagnetic Interference (EMI) is electromagnetic energy that has an adverse effect on the performance of electrical/electronic equipment by creating undesirable responses or complete operational failure. Check out our FAQs page for more answers - https://lnkd.in/eNEzvQuh #Nolato #NolatoPPT #NolatoPPTFAQs

Did you know? Selecting the correct type of coaxial cable is crucial for ensuring optimal performance in two-way radio repeater installations. The coaxial cable serves as the transmission medium for radio frequency (RF) signals between the radio equipment and the antennas. The choice of coaxial cable impacts various aspects of repeater performance, including signal loss, impedance matching, durability, and cost-effectiveness. Different RF frequencies work best with different types of Coaxial Cable, so it's important to design the system correctly. This is why the correct type of coaxial cable is important

There are various reasons why 50 Ohm impedance is usually considered to be in the middle of the way between minimum loss, maximum power, and maximum voltage. First of all, the environmental conditions of the telecom industry in thelate 1920s and early 1930 played a significant role in shaping this decision. The engineers were employed in air filled coaxial cable for a radio transmitter where issues such as power transmission, voltage and dissipation over larger distances were of great importance. This is useful in raising the PTFE-filled coaxial cable with a minimum loss impedance of about 50 Ohms that defined the standardization. Moreover, as for field distribution, the most intense electric field is distribute in TE10 mode when the conductor impedance is 60 Ohms which is why the 50 Ohms is deemed as the mean value. Further, impedance too is optimum in air filled coax at approximately 30 Ohm when the operating frequency is below TE11 cutoff. Balancing all these aspects and also considering the practical problems with dielectric dispersion and other problems with coaxial cables 50 Ohm impedance was finally selected as a worthy compromise. Therefore, the 50 Ohm impedance is not at all arbitrary but it is a balance between the least amount of loss in the system, greater amount of transmitted power and highest amount of voltage which is encountered in operating cables especially the coaxial ones.

Do you know about optic CAN tranceivers? Today, I was in test house making a trial setup before official qualification tests. So, I wanted to share the setup with you 🛠️. The optic CAN is a communication extension which consists of two tranceivers and an optic fiber line 🔌. The tranceivers convert electrical signals to optic signals and vice-versa💡. The actual setup workflow is the following: Master_Simulator_Application<=>Vector_CAN_Interface<=>Optic_Tranceiver_1<=>Optic_Fiber_Line<=>Optic_Tranceiver_2<=>DUT The use cases of the optic tranceivers are: 📌Extend the CAN bus in EMC hostile environments (e.g., anechoic chambers) where part of the bus is radiated from an antenna while another part remains outside the high field zone. 📌Monitor or stimulate the bus during immunity tests using a remote terminal unit (CAN analyzer). 📌Isolate a portion of the bus for specific requirements. 📋Note that the bus termination is sectable via 60Ω, O.C., 120Ω switch

Did you know? Impedance Matching: Coaxial cables have a characteristic impedance, typically 50 or 75 ohms, that must match the impedance of the radio equipment and antennas. Mismatched impedance can lead to signal reflections and loss of signal power, resulting in degraded performance and potential damage to the equipment. Using a coaxial cable with the correct impedance ensures proper signal transfer and impedance matching throughout the repeater system.

Main test content of the FCC certification Electromagnetic compatibility (EMC) test: Check whether the vacuum cleaner will cause electromagnetic interference to other electronic devices under normal working state, or whether it will suffer from electromagnetic interference from other electronic devices. Test items include electrostatic discharge (ESD), radiation emission (RE), radiation resistance (RS), electromagnetic sensitivity (EMS), etc. RF test: Check in the process of vacuum cleaner, whether it will be harmful interference to the radio frequency, or whether it will be harmful interference from the radio frequency. Test items include frequency range, power spectral density, occupied bandwidth, carrier frequency offset and stray emission, etc.

The terms EMI (Electromagnetic Interference) and RFI (Radio Frequency Interference) often get tossed around interchangeably. But, for an engineer designing an EMI gasket, understanding the subtle differences is crucial. Our comprehensive guide explores the nuances of both phenomena, helping you select the right shielding solution for your application. Don't let these buzzwords hold you back – grab your free copy and become an EMI shielding expert! https://hubs.ly/Q02wYVkN0 #EMI #shielding #engineering #manufacturing

IEEE 242 Relay and Circuit Breaker Coordination Times. It will be an excellent guide during your discrimination studies. a. CB to CB -Clear Space b. CB to Numerical Relay - 0.12s c. Numerical Relay to Numerical Relay - 0.2s

📡 Understanding Transmission Line Termination and Its Impact on Radiated Emissions 📡 If a transmission line circuit is poorly terminated, the signal may develop ringing. The resulting spectrum will have peaks at the ringing frequency. But why should I care? I am still getting my data. The amplitudes of the ringing frequency can be more than a factor of 10 greater than the amplitudes of the signal without ringing As clearly seen in the image below clock without ringing when seen in frequency domain has amplitude reduction with its harmonics but it's not the same case when clock has ringing, the ability to radiate would increase at the rate of f, so all harmonics contribute equally to EMI. Source : Signal and Power Integrity by Eric Bogatin #signalintegrity

Partial Discharge can be detected using various techniques and sensors some following IEC 60270 requirements and some non conventional methods under IEC 62478. If you wish to do a #Partialdischargesurvey for your switchgear, transformers, GIS, Air Insulated Substations, Call Prescon (info@theprescon.com) Prescon does it with following sensors: 1. Non contact acoustic 2. Contact acoustic 3. Parabolic Dish based Ultrasound Detector 4. TEV 5 Radio Frequency Interference (RFI) 6. HFCT