Measuring Brake Rotor Thickness Variation with Capacitive Sensing GalleryMeasuring Brake Rotor Thickness Variation with Capacitive Sensing
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Measuring Brake Rotor Thickness Variation with Capacitive Sensing
Brake rotor thickness variation, or disc thickness variation (DTV), causes uneven wear to brake rotors, disc-shaped automotive parts that are squeezed between brake pads to slow or stop a vehicle’s wheels. When a brake rotor has areas of different thickness, the amount of clamping force that’s applied across the rotor’s surface varies. These differences in clamping force lead to difference in torque, and the results may include brake shuddering, pulsating, or vibration. Even under normal driving conditions, brake rotors are subjected to extreme conditions that can cause performance-related issues. To ensure that brake rotors can perform [...]
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 [...]
New Product Release: Vitrek’s 98i Series Teraohmmeter Meets Demands for Higher Voltage IR Testing GalleryNew Product Release: Vitrek’s 98i Series Teraohmmeter Meets Demands for Higher Voltage IR Testing
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New Product Release: Vitrek’s 98i Series Teraohmmeter Meets Demands for Higher Voltage IR Testing
New Product Release: Vitrek’s 98xi Series Teraohmmeter Meets Demands for Higher Voltage IR Testing Meets requirements for emerging higher voltage electric vehicle battery system and solar array insulation resistance testing; offers unique combination of operational features; capacitive load capability facilitates solar system and cable harness testing […]
Engine Vibration and Balancing Principles
What do you think when you’re flying home, cruising at 30,000 feet and the drinks have just been served? Our engineers think about the ripple in the glass. That ripple signals vibration and is an indication that the engine may be in need of a balance. The MTII’s PBS-4100+ Series Turbine Vibration Analyzer/Balancing System was developed to ensure that Turbine engines run as efficiently as possible. Excessive vibration is detrimental for a host of reasons: energy intended for useful output is instead expended on the vibration vibration manifests as acoustic energy (noise), again wasting otherwise useful energy excessive [...]
Aircraft Engine Test Cell is World’s Largest
The world’s largest aircraft engine test cell is in Atlanta, Georgia (USA), home of the upcoming MRO Americas 2019 show for the commercial air-transport maintenance, repair and overhaul (MRO) industry. Delta TechOps, a division of Delta Airlines and a full-service MRO, recently opened a $100 million test cell at its Atlanta facility that’s capable of running a jet engine at 150,000 lb. thrust. That’s more thrust than the GE Aviation GE90 engine, which powers Delta’s Boeing 777-200 LR fleet, can produce.“This test cell is a vote of confidence in Delta TechOps,” said Ed Bastian, Delta Airlines CEO, in an article [...]
Laser Thickness Gauge System Principles
The Microtrak™ 3 TGS system is specifically designed for thickness applications utilizing two lasers. The product can be used in a standalone configuration or easily interfaced with PLCs and PCs. Each module contains an integral LCD display and keypad for setup and display of measurements. A USB serial port also allows control by a laptop computer. Basic PLC or control input/output is provided by discrete digital I/O lines or a Modbus® interface. Laser Triangulation Principle The Microtrak™ 3 TGS system uses the principle of laser triangulation to perform a one dimensional measurement of a target. The [...]
Proforma 300i SA Video Shows Semiconductor Metrology GalleryProforma 300i SA Video Shows Semiconductor Metrology
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Proforma 300i SA Video Shows Semiconductor Metrology
MTI Instruments, a worldwide leader in precision measurement solutions, has released a YouTube video that shows how its Proforma™ 300i SA semi-automated measurement tool measures silicon carbide wafers for semiconductors. George Relan, MTI’s Global Director of Sales, demonstrates how the desktop metrology system provides non-contact full wafer scanning and 3D mapping of measurement features such as thickness and shape. MTI’s video also shows how the Proforma 300i SA interfaces with an external computer and provides powerful Windows-based software for analysis and reporting. By utilizing MTI push/pull technology, the Proforma 300i SA doesn’t require the semiconductor wafers to have a [...]
MRO Americas 2019: Engine Vibration Analysis from MTI Instruments (Booth #2301)
MTI Instruments, a U.S.-based manufacturer of engine vibration analysis and balancing systems, will exhibit at MRO Americas 2019 from April 9 to 11 at the Georgia World Congress Center in Atlanta, Georgia (USA). Visit MTI Instruments in Booth #2301 at MRO Americas, the premiere event for the commercial air-transport maintenance, repair and overhaul (MRO) industry, to see its PBS-4100 line of vibration and balancing systems. MTI instruments will also give away a 1501A precision signal/function generator. Aircraft engine vibrations caused by out-of-balance parts can lead to cracked fan, turbine, and compressor components. Imbalance-induced vibrations can also cause metal fatigue [...]
Handheld Signal Source Generator Principles
The MTI 1510A Portable Signal Generator is a sophisticated two channel battery powered microprocessor controlled direct digital synthesizer. It can generate sine, square, saw tooth and triangle continuous signals on both channels as well as single pulse and odd pulses on the B channel to simulate tachometer output pulses. The main reason for two channels is to be able to create a phase shift in the A to B output signals as may be encountered in a piece of rotating equipment such as a jet engine. The A channel also has the ability to simulate precise DC signals or [...]