TESTING CHARGE AMPLIFIER GAIN AND FREQUENCY RESPONSE WITH A SIGNAL GENERATOR
[Application Note 40518] Piezoelectric transducers produce small electrical charges in response to pressure. Their sensitivity, ruggedness, and stability at high temperatures make them an essential building block of many accelerometers and pressure sensors. Applications include turbine vibration measurement (accelerometers) and combustion dynamics monitoring (pressure sensors). Typically, the high-impedance charge output produced by a piezoelectric transducer must be conditioned and amplified before transmission across system cabling to the data acquisition and measurement instrumentation. This conversion is accomplished with a device called a charge amplifier. Problem Over time, a charge amplifier’s signal response can drift. Damage to the charge amplifier or associated [...]
THICKNESS INFORMATION OF COMPOSITE MATERIALS
Composite materials consist of two or more materials which include a substrate or base material such as paper, cotton cloth, or glass cloth along with a resin or adhesive such as epoxy, melamine, or silicone. To make a thermoset laminate, the base material is coated with the adhesive so that layers of material can be pressed under heat and pressure into sheet form. The Problem: Composite material thickness needed to be verified prior to forming or machining. Due to the size of the sheets typical measurement techniques were not suitable. A consistent method to accurately measure the board thickness [...]
MTI Instruments Announces Multi-Million Dollar U.S. Air Force Contract
Lockport, IL - (NewMediaWire) - January 07, 2022 - MTI Instruments, a manufacturer of precision tools and testing equipment for electronics, aviation, automotive, power and other industries, today announced a multi-year and multi-million-dollar contract with the U.S. Air Force (USAF).The total value over the life of the contract is anticipated to be well over $10 million. The contract includes a one-year base with four extension years and reflects a reaffirmation of the 24-year relationship prior to this award. The USAF has awarded MTI Instruments this contract for the supply of its turbofan jet engine vibration analysis and balancing solution, PBS. [...]
Measuring Glass wafer thickness with a Proforma 300i
Measuring glass substrate thickness with a Proforma 300i Semiconductor Glass Wafer Thickness Measurement Thickness Applications testing of glass (substrate) thickness An applications experiment was made with the MTI Proforma 300i Semiconductor thickness system to determine if it’s useful to measure glass substrate thicknesses typically found as support structures for Si semiconductors that are used for fabricating MEMs components and other thin Si wafers. The MEMs Silicon wafer is so thin after grinding that it needs the support of a thicker substrate to prevent breakage of the wafer during the back grinding/thinning [...]
MTI Instruments Enters Advanced Qualification Stage for Electric Vehicle Battery Measurement Device with Several Major Automotive OEM Manufacturers GalleryMTI Instruments Enters Advanced Qualification Stage for Electric Vehicle Battery Measurement Device with Several Major Automotive OEM Manufacturers
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MTI Instruments Enters Advanced Qualification Stage for Electric Vehicle Battery Measurement Device with Several Major Automotive OEM Manufacturers
NEW YORK, December 16, 2021 – MTI Instruments division, a manufacturer of precision tools and testing equipment for electronics, aviation, automotive, power and other industries, today announced that it has entered into the advanced qualification stage for its electric vehicle (EV) battery measurement device with several major automotive OEM manufacturers. Moshe Binyamin, President and CEO of MTI Instruments commented, “We committed to shareholders that we would communicate with them as we began to get traction in the growing and large EV Battery manufacturing segment. I am pleased to report, we are gaining serious traction.” Binyamin further added, “In fact, [...]
TIRE TREAD INSPECTION WITH 1D LASER SENSOR
Tire manufacturers wants to satisfy their customers, and protect themselves from liabilities, manufacturers are moving to 100% tire inspection for defects and abnormalities. Defects not only cause potential safety issues but they can also introduce unwanted vibration into the vehicle suspension system. Belts can be overlapped, or not cover the complete tire surface, causing weak or bubbled areas and imbalances. The tread depth can be too shallow, leading to decreased service life. An uneven tire can cause excessive runout and vibration. MTI was approached by a major manufacturer requesting a solution to measure tread depth, runout and blistering. They [...]
MTI Instruments Announces Record $1.4 Million Order with Global Industrial Manufacturer
NEW YORK, Dec. 15, 2021 (GLOBE NEWSWIRE) -- via NewMediaWire -- MTI Instruments division, a manufacturer of precision tools and testing equipment for electronics, aviation, automotive, power and other industries, today announced a $1.4 million order with a global industrial manufacturer. The contract also includes a 14-year ongoing maintenance and support component representing another high-value contract win with recurring revenue. This repeat order stems from a multi-year customer relationship and is for MTI’s Block Gage measurement device that allows this top-tier global industrial manufacturer to perfectly machine ball pistons that require extremely precise accuracy for high power transmissions. MTI uses [...]
Torque Converter
Industry Automotive Applications Torque Converter Measurement Type Surface Description Since minute defects in the torque converter casing wall thickness can result in unacceptable and dangerous torque converter expansion, a precision measurement system was needed to measure the impeller hub displacement and thus the torque converter axial displacement. An AC dynamometer would be required to spin the torque converter at a high rate of speed while a fast response hydraulic system is needed to pressurize the converter to pressures up to 150 psi. MTI’s MicroTrak laser sensor was selected because it offered [...]
FIBER OPTIC PROBES MEASURE STATOR BAR VIBRATION
[Application Note 11718] One of the primary concerns in large generator design is vibration. Excessive vibration can lead to premature breakdown of insulation and other materials, ultimately resulting in early failure of the generator itself. The Problem A leading manufacturer of power generating equipment required a sensing system able to measure stator bar vibration in a partial generator mockup. Specifically, the company’s multi-day testing program demanded a sensing system that was immune to the large magnetic field generated by live stator bars capable of withstanding high heat built up from prolonged testing, and compatible with a proprietary stator bar [...]
Aircraft Vibration Analysis and Measurement Techniques GalleryAircraft Vibration Analysis and Measurement Techniques
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Aircraft Vibration Analysis and Measurement Techniques
Aircraft engine vibration is a critical indicator of engine health and overall flight safety. While some level of vibration in aircraft is expected during normal operations, excessive or abnormal vibrations often signal underlying mechanical issues that demand immediate attention. With modern jet engines becoming more complex, real-time vibration monitoring and precise balancing tools are essential for both aircraft maintenance teams and aviation diagnostics specialists. Aircraft vibration measurement tools detect and quantify these issues, enabling maintenance teams to take corrective actions before minor imbalances escalate into major faults. Types of Aircraft Vibrations There are two main categories of aircraft vibrations: [...]