White Paper: High Accuracy, High Voltage Measurement – April, 2019
Introduction One of the first principals learned as an engineering student is the “observer effect” which states that simply observing a situation or phenomenon necessarily changes that phenomenon. This is often the result of instruments that, by necessity, alter the state of what they measure in some manner. Accurate high-voltage measurement is a clear example of the validity of this theory. The accuracy of the resulting measurements is affected by three important elements: environmental factors, errors that are introduced by the measurement probe, and the intrinsic accuracy and performance of the measuring instrument. This article will address each of [...]
Capacitive Displacement Sensors: Working Principle & Precision Measurement Applications
Capacitive Displacement Sensors: Working Principle & Precision Measurement Applications Capacitive displacement sensors are precision non-contact measurement devices that utilize capacitance changes to determine position, distance, and thickness with exceptional accuracy. These capacitive distance sensors offer superior performance in applications requiring high-resolution measurements, making them essential tools across manufacturing, automation, and research industries. How Capacitive Displacement Sensors Work Capacitive Sensor Working Principle Capacitive displacement sensors operate on the fundamental principle of measuring capacitance variations between two conductive surfaces. The sensor probe acts as one plate of a parallel plate capacitor, while the [...]
White Paper: Fundamentals of Electrical Safety Testing
Part 1 - Functions & Features of Advanced Hipot Testers Introduction Electrical safety testers - often referred to as "hipot" testers - are an integral part of electrical and electronic equipment manufacturing. Hipot testers get their name from the high potential (high voltage) they produce to perform dielectric withstand and insulation resistance tests. In addition to these tests, many hipot testers provide accurate low-resistance measurements and low-resistance/high-current outputs to test ground resistance and ground bond integrity. Hipot testing has long been a standard procedure for assuring the electrical safety of electronic equipment. Early commercial hipot testers were actually not [...]
Capacitance Guide for Industrial Applications
Accumeasure Digital Capacitance System D Series Gen 3 View Product Capacitance Displacement and Gap Measurement Probes View Product Accumeasure Analog Capacitance System View Product Basic Principles of Capacitance Capacitance is defined as the ratio of the change in an electric charge to the corresponding change in its electrical potential (or voltage). Capacitors ; components designed to store electrical charge, consist of conductive parallel plates that are electrically separated by a dielectric material, such as air or an insulating layer. MTI’s technology is built on the principles of parallel plate capacitor measurement. A probe [...]
Electronic & RF / Radio Frequency Noise
What is RF Noise? RF noise (radio frequency noise) is unwanted electromagnetic interference that appears across the frequency spectrum in electronic systems. Understanding what is rf noise is crucial for anyone working with electronic equipment, as it directly affects system performance and signal quality. Radio frequency sound and noise frequency characteristics vary significantly depending on the source and application. RF noise manifests as random fluctuations that can mask desired signals, cause data errors, and limit overall system capabilities. Understanding Noise Frequency Characteristics Frequency Noise Types and Their Spectrum Noise frequencies are categorized based on their frequency distribution patterns: White [...]