Optical measurement uses sensors to collect measurements without touching the object. It is precise and fast, but automated systems cannot correct errors like humans. The cost varies and companies offer information on their products’ applications and features. Optical measurement is a measurement technique that relies on the use of optical sensors to collect measurements. There […]
A voltmeter measures the potential difference between positive and negative terminals in a circuit, indicating the direction of current flow. Voltage is a variable measurement, while current flow is measured in amperes. Other devices that measure voltage include oscilloscopes and A/D converter cards. Digital multimeters are commonly used today. Earlier voltmeters were analog and produced […]
The test and measurement industry produces instruments for analyzing electronic and mechanical systems. It constantly develops to adapt to technological advances, providing both general-purpose and specialized instruments for high-tech industries. The industry strives for increased accuracy and provides tools for measuring complex systems, including oscilloscopes, logic analyzers, audio and optical measurement devices. The industry is […]
The test and measurement industry produces instruments for electronic and mechanical systems, constantly developing to adapt to technological advances. It caters to high-tech industries and strives for ever-increasing accuracy, providing tools for complex measurements. The industry also offers software packages to encode, validate, and organize data collected by devices. The test and measurement industry focuses […]
Software measurement involves monitoring and regulating software usage, including the number of licenses being used, program access during certain periods, and payment based on usage. System administrators use software metering to ensure compliance with license terms and prevent unauthorized use. Software measurement is a type of computer measurement system that can mean several things at […]
Atmospheric pressure is the weight or force exerted by the atmosphere on a defined part of the Earth. Barometers are used to measure pressure, with mercury or water barometers measuring air pressure by pushing the material up a tube. Aneroid barometers use the contraction and expansion of a metal cell to measure pressure. Air pressure […]
This text discusses various temperature scales, including Newton’s, Rømer’s, Fahrenheit’s, Réaumur’s, Kelvin’s, and Celsius’s. It also provides conversion formulas and mnemonic poems for Celsius and Fahrenheit. Temperature is the heat of an object, measured by its intensity or degree on a defined scale. There are several scales used to measure temperature and the most common […]
A phasor measurement unit (PMU) measures the phase and amplitude of sine waves to monitor the quality of AC supplied by power companies. PMUs are necessary for synchronizing generators in a power grid and forming an intelligent grid with accurate control of power plants. A phasor measurement unit (PMU) is a means of providing a […]
Pitot tubes measure flow based on air pressure and density, using Bernoulli’s principles. They calculate stagnation pressure, requiring a measurement of external static air pressure for velocity calculations. Pitot tubes are used in aircraft to determine airspeed, but factors such as ice buildup can affect accuracy. Henri Pitot invented the pitot tube in 1732, and […]
Flow measurement is the process of determining the amount of material flowing through a system, usually a pipe or duct, using flowmeters such as orifice, turbine, venturi, ultrasonic, and electromagnetic. The type of flowmeter used depends on the properties of the substance being measured. Correction or compensation factors can be used to improve calculated flow […]
Hygrometers are the most accurate way to measure humidity and can use hair, psychrometry, electrical resistance, or chemicals. Satellites provide the most accurate global readings. There are various methods of measuring humidity, most of which use a device called a hygrometer. The hygrometer can work in various ways, depending on the type, and is the […]
Measurement uses algebraic equations and geometric calculations to estimate the width, depth, and volume of objects. It is important in forestry to determine growth patterns and projections for harvesting. This technique can be applied to other industries and phenomena, but unexpected elements must be considered. In the broadest sense, measurement is about the process of […]
Performance metric is a financial tool used to evaluate contractor productivity in earned value management. It includes budget targets, project scope, and performance schedule, and is part of the Total Allocated Budget principle. The basis of performance measurement includes undistributed budget, summary-level planning, and control account. Change management concepts are also used to manage changes […]
