Non-Destructive Testing (NDT) of Concrete Structures
Non-Destructive Testing (NDT) of Concrete Structures Customer Case Our customer needs to perform Non Destructive Testing (NDT) to test concrete. The testing method involves using a special hammer mounted with a geophone, which serves as a transducer. They strike the concrete structure with the hammer and record the results for analysis. A definitive echo in the signal will be appear should there be a crack or a weak point in the concrete. GaGe Case Solution The customer was looking for a low-cost board that would be able to sample at 20 MHz or more, so we recommended the CompuScope [...]
Piezoelectric Device Amplitude
Piezoelectric Device Amplitude Research & Development Piezoceramic, 1-3 Pzt / Polymer Composite And Pvdf Film Amplitude Description Measuring Piezoelectric device amplitude including piezoceramic, 1-3 PZT/polymer composite and PVDF film A “PZT ” is a piezoelectric device which generates motion when a voltage is applied across the crystal. The motion can be anywhere from DC to ultrasonic and the motion is typically very small. PZT devices are used to generate sound and to convert voltage to motion. MTI's MTI-2100 controller in conjunction with a High resolution fiber optic probe such as [...]
Non-Destructive Testing (NDT) for Steel Manufacturing
Non-Destructive Testing (NDT) for Steel Manufacturing Customer Case The customer is a custom-built contractor of Non-Destructive Test (NDT) instruments for steel manufacturing. NDT uses ultrasonic pulses to scan through thick sheets of metals for possible causes of early wear, such as cracks or impurities. The stimulus is a stream of ultrasonic pulses. The response is their reflection from various depths. The center frequencies used by this customer are in the range of 250 KHz to 2.25 MHz and pulses are about 10 microseconds. The pulse repeat frequency (PRF) is less than 1 KHz. The thickness of steel sheets is [...]
Angle Measurement And Monitoring
Angle Measurement And Monitoring Industrial Angle measurement and monitoring Robot Guide Introduction What do sheet metal, speakers, and wine bottles all have in common? They all require precise angle measurement to ensure product consistency and quality. Whether you're working in metal fabrication or consumer product packaging, an angle measurement sensor is essential for measuring critical angles and profiles with high precision. Precision Angle Measurement in Sheet Metal Press Brake Applications Many industrial applications, especially in sheet metal fabrication, rely on angle measurement sensors to monitor and control bends. For example, in [...]
Galvannealing Phosphor Thermometry
Galvannealing Phosphor Thermometry Customer Case During the process of galvanizing, steel is dipped in a bath of liquid tin to increase its resistance to oxidation and moisture. After galvanizing, a precise heat treatment allows control of the mechanical properties of the final galvanized steel. This heat treatment is known as galvannealing. During galvannealing, precise temperature control is necessary to promote the desired grain growth in the steel's tin-rich coating. Galvanneal thermometry is difficult. The rolling of the hot steel makes contact thermocouples and optical pyrometry impractical. A customer's galvanneal furnace is equipped for phosphor thermometry. This novel technique uses [...]
Piezoelectric Stack Motion
Piezoelectric Stack Motion Research & Development Piezoelectric Stack Motion Displacement Description Fotonic sensors are ideal for making dynamic measurement of very small oscillatory motions. Using the MTI-2100 with a spectrum analyzer, angstrom level measurements are possible. Would you like to know more? Okay let’s set up some basic equipment and get started. Piezoelectric crystals expand and contract when voltage is applied across the stack. By controlling the amplitude of the applied signal we control the magnitude of the displacement. The test setup A Spectrum Analyzer A Signal Generator to drive piezo device [...]
Pulsed Electric Field Food Processing
Pulsed Electric Field Food Processing Customer Case Pulsed Electric Field Food Processing is a continuous food processing system in which beverages (with a known conductivity) are pumped through a chamber containing an electrode. Pulses of high voltage electricity are passed across the electrode, thus through the liquid as well. It is a pasteurization technique being studied at Ohio State University. The need is to be able to monitor, display, and record to hard drive storage, voltage and current waveforms. They need to be able to draw information about the pulse duration, peak voltage, etc. from the recorded waveforms. Waveforms [...]
Thickness and TTV of Semiconducting Wafers
Thickness and TTV of Semiconducting Wafers Semiconductor Thickness And TTV Of Semiconducting Wafers Thickness Description Introduction:  Silicon wafers are ordinarily highly conductive and easy to measure with standard capacitive displacement sensors (See MTI’s Proforma 300i). Measuring the thickness of GaAs wafers that have high bulk resistivity (>10k Ohm/cm) is a little more difficult because the wafers act as non-conductive insulators in a capacitive sensors measuring field. Fortunately, MTI has a solution to this problem. Solution:  It’s possible to measure the thickness and TTV of high resistivity semiconducting wafers (like GaAs) [...]
Lithography Optics Position Focus
Lithography Optics Position Focus Semiconductor Lithography Optics Position Focus Positioning Description One specific area where capacitance systems excel is high resolution focusing of complex lens systems such as those found in atomic force microscopes, vision inspection machines and photolithography tools. In a multi-million dollar photolithography tool, high accuracy, nanometer resolution and maximum thermal stability are absolutely critical to maintain proper focus and obtain integrated circuit line widths as small as 45 nanometers. Additionally, most systems demand low power consumption and maximum heat dissipation to eliminate any adverse affects from temperature [...]
Camera Shield Measurement
Camera Shield Measurement Consumer Electronics Camera shield measurement Surface Equipment Setup Equipment Used DTS-25-04 laser head Rotary Stage PC with Digital Microtrak Basic Support software Setup: Power is automatic mode. Filter is 100Hz Sample rate is 1000 samples sec The head was operated in diffuse mode (not specular/tilted) Validation of Setup The setup should be validated by performing a total runout scan on the rotary stage with no target present. The stage should be cleaned with Isopropyl alcohol and allowed to dry prior to the scan. This reduces any dust [...]