Blogs
Capacitance Sensing vs. Strain Gauge Sensing Application Note
Capacitance Sensing vs. Strain Gauge Sensing Application Note Capacitance probes that are embedded in piezo flexure stages can provide significantly greater accuracy than strain gauges. Although some minor mounting modifications are required, capacitance probes with picoscale positioning provide higher linearity, greater long-term stability, and better direct measurement. Capacitance sensors cost more, however, and are limited by sensing distance. Therefore, strain gauge sensors remain a good choice for applications where cost is a consideration, sensing distances are larger, and high resolution or high accuracy are required. In a recent application note, MTI Instruments examines the differences between capacitance probes and [...]
Digital Ultrasonic Array Data Capture
Digital Ultrasonic Array Data Capture Customer Case A customer possesses a commercial medical diagnostic ultrasonic system. The ultrasonic sensing head consists of an ultrasonic generator transducer and an 8' x 8' two-dimensional array of receiver transducers. The sensing head is pressed against the tissue under study and the generation transducer is periodically excited so that it emits a burst of ultrasonic energy. After each burst, the receiver array registers ultrasonic echoes reflected off tissue structures from each transducer element. In normal operation, digitized array data from each element is numerically processed and combined to construct a display image of [...]
Using Capacitance Sensors for Non-Conductive Material Measurement GalleryUsing Capacitance Sensors for Non-Conductive Material Measurement
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Using Capacitance Sensors for Non-Conductive Material Measurement
Non-Conductive Material Measurement with Capacitance Sensors Capacitance sensors are non-contact devices that can be used to obtain position, thickness, and dynamic measurements with a high degree of precision, accuracy, and resolution. Capacitive measurement is used with electrically-conductive materials such as metals but can also be used to measure non-conductive materials such as glass, sapphire, and many plastics. Even if a non-conductive material is relatively inexpensive (such as closed cell foam), manufacturers want to avoid errors that can result in significant waste across high volumes. Importantly, capacitance measurement is also used with semi-insulating materials such as gallium arsenide (GaAs) and [...]
Why Demand for SiC Wafers is Hot and Durable GalleryWhy Demand for SiC Wafers is Hot and Durable
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Why Demand for SiC Wafers is Hot and Durable
Why Demand for SiC Wafers is Hot and Durable Pardon the pun, but SiC wafers are a hot item for high-temperature applications. Silicone carbide (SiC), a semiconductor containing both silicon and carbide, withstands temperatures up to 2700°C. Carborundum, as this durable ceramic is also known, finds additional applications in bulletproof vests, extrusion dies, sandpaper, and high-performance disc brakes. In electronics, SiC materials are used with light-emitting diodes (LEDs) and detectors. In the semiconductor industry, a market where interest is red-hot, SiC wafers are used in electronic devices that operate at high temperatures, high voltages, or both. Examples include electric [...]
Wafer Stress Analysis Using the 300iSA
Wafer Stress Analysis Using MTI Instruments Proforma 300iSAWafer processing involves several stages that may translate into mechanical alterations. Sometimes these alterations can cause deformities that render the wafer either unusable or that put it marginally close to not being usable. To determine this, stress analysis can be used.The Proforma 300iSA wafer characterization tool provides a software capability in which a wafer can be analyzed prior to processing and then after processing. The tool then evaluates how the wafer changed and hence, provides the resulting stress analysis.The software expects the customer to provide the material elasticity constants and to define them [...]
Weathering the storm: Keys to resiliency in MRO
Weathering the storm: Keys to resiliency in MRO By Ken Ameika It’s no secret that COVID-19 has adversely affected the airline industry, and consequently the MRO and test cell markets. But the impacts are nuanced. Commercial aircraft utilization is way down; meanwhile, freight carrier business is expanding markedly. Operators are spending less; but they still have needs, which often require quick turnaround. It’s been hard for many. But there’s good news: COVID provided lessons that we can all use to make our businesses, or our careers, more resilient to the next major disruption. Diversify Your Business Commercial passenger traffic—or [...]
MTI Instrument’s PBS ROI Calculator: See How Much Money You Can Save GalleryMTI Instrument’s PBS ROI Calculator: See How Much Money You Can Save
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MTI Instrument’s PBS ROI Calculator: See How Much Money You Can Save
Ensuring the proper operation of your aircraft engine is essential to complying with manufacturers guidelines for the safety and longevity of the aircraft. Ensuring engines are not operating outside acceptible vibration limits and operating optimally isn't just smart, it is vital to your business. Excessive engine vibration can lead to cracked turbine, fan and compressor components potentially leading to catastrophic failure. The costs of catastrophic engine failure due to an unbalanced engine can measure in the millions of dollars. As airlines push to get more and more life out of their aging fleets, the need to properly maintain the [...]
Multinational Manufacturer Saint-Gobain Selects MTI Instruments’ Digital Capacitance Measurement Technology to Streamline R&D GalleryMultinational Manufacturer Saint-Gobain Selects MTI Instruments’ Digital Capacitance Measurement Technology to Streamline R&D
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Multinational Manufacturer Saint-Gobain Selects MTI Instruments’ Digital Capacitance Measurement Technology to Streamline R&D
Multinational Manufacturer Saint-Gobain Selects MTI Instruments’ Digital Capacitance Measurement Technology to Streamline R&D ALBANY, N.Y., April 21, 2021 /PRNewswire/ — MTI Instruments, Inc. (“MTI Instruments”), a wholly-owned subsidiary of Mechanical Technology, Incorporated (NASDAQ: MKTY), announced today that Compagnie de Saint-Gobain (“Saint-Gobain”) has selected MTI Instruments’ non-destructive measurement technology to help streamline the Saint-Gobain’s manufacturing research and development. Saint-Gobain, a French multinational corporation that designs, manufactures, and distributes various high-performance materials, chose MTI Instruments as a partner after identifying that the process for producing accurate and repeatable measurement solutions was time-consuming and cost-prohibitive. Saint-Gobain estimated that just 30% of their process [...]
MEMS and Capacitance-Based Semiconductor Wafer Measurement GalleryMEMS and Capacitance-Based Semiconductor Wafer Measurement
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MEMS and Capacitance-Based Semiconductor Wafer Measurement
MEMS Technology and Capacitance-Based Wafer Measurement Micro-electrical-mechanical systems (MEMS) are tiny devices that house electrical and mechanical components on a single silicon chip or integrated circuit (IC). They integrate mechanical structures with electronics that are normally fabricated with complementary metal-oxide-semiconductor (CMOS) technologies. In addition to miniaturization, the benefits of MEMS include expanded functionalities at lower cost and with improved performance and reliability. With MEMS devices, critical physical dimensions range from smaller than one micron (µ) to larger than several millimeters (mm). In complex systems, multiple moving elements may be controlled by integrated electronics. Examples of the mechanical components in [...]
MTI Instruments’ Accumeasure HD System Proven to Be Highest Resolution Capacitance System in the World GalleryMTI Instruments’ Accumeasure HD System Proven to Be Highest Resolution Capacitance System in the World
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MTI Instruments’ Accumeasure HD System Proven to Be Highest Resolution Capacitance System in the World
ALBANY, N.Y., April 9, 2021 /PRNewswire/ — MTI Instruments, Inc. (“MTI Instruments”), a wholly-owned subsidiary of Mechanical Technology, Incorporated, (NASDAQ: MKTY), announced today that its Accumeasure HD system technology has been proven to measure distances as small as 69 picometers, setting a new bar for capacitance systems. The results were recently published in a white paper by Kevin Harding of Optical Metrology Solutions. Harding’s white paper can be accessed on MTI Instruments’ website. Harding’s independent study confirmed the findings of an internal experiment by MTI Instruments that concluded the Accumeasure HD system can provide picometer-level accuracy when used with [...]