Disk Drive Track Scanning
Disk Drive Track Scanning Customer Case The customer is trying to digitize an 83 millisecond long signal coming out of a disk mounted on a rotary motor. This corresponds to one full revolution of the disk. The analog signal coming out of the Device Under Test (DUT) is of approximately 2 MHz bandwidth. Currently, the customer is sampling at 10 MSPS and would like to increase the oversampling to get better time resolution. At present, they are using a CompuScope 225 - 1M, which has sufficient memory to digitize the entire revolution in on-board memory at the 10 MSPS [...]
Capacitance Probes: Five Things You Need to Know
Capacitance probes are non-contact measurement devices with a capacitance sensor inside a protective shell or housing. They use cables and connectors to integrate with amplifiers and are an important part of capacitance measurement systems. By using capacitance, engineers can measure physical parameters such as vibration, pressure, liquid levels, metal contamination, and seismic activity – just to name a few. There’s a lot to know about capacitance probes, but five key facts to understand. Capacitance probes are highly accurate and very stable. They’re better than older devices and competing technologies. They require little calibration and support miniaturization and embedding. They [...]
Press Release: Vitrek Announces Academic Discount Program to Support Technology Lab Upgrades in Educational Institutions GalleryPress Release: Vitrek Announces Academic Discount Program to Support Technology Lab Upgrades in Educational Institutions
Brand-Vitrek, Industry-Education, New & Press Releases, News-Vitrek, Press Releases-Vitrek, Products-Vitrek, z1
Press Release: Vitrek Announces Academic Discount Program to Support Technology Lab Upgrades in Educational Institutions
Vitrek Announces Academic Discount Program to Support Technology Lab Upgrades in Educational Institutions Special program offers a 15% academic discount to universities, vocational schools, graduate schools, technical colleges and training facilities on Vitrek & XiTRON products and accessories. […]
MEMS-Based High Throughput Screening
MEMS-Based High Throughput Screening Customer Case The customer needs to do frequency analysis to determine the resonant frequency of an oscillating micro-fabricated device. They will use a Laser Doppler Vibrometer to monitor the physical oscillation. This is an instrument that looks at the light reflected from the surface of a moving part to determine the velocity or relative position of the part. Analysis of the motion as a function of the driving frequency determines the resonant frequency. Upon excitation at the resonant frequency, the motion is at its maximum. The expected resonant frequencies are on the order of 1 [...]
Capacitance Sensors: Three Things You Need to Know
Capacitance sensors are precision measurement tools for process automation, quality control, and tool automation control. They’re used in a many different industries and are suitable for virtually any application where accuracy is paramount. There’s a lot to know about capacitive sensors (as they’re sometimes called), but engineers need to start with three key questions. What are the parameters to specify when selecting a capacitance sensor? What are factors to consider when embedding a capacitive sensor in an industrial application? What is the future of capacitance-based measurement products? MTI Instruments has been providing U.S.-made capacitance sensor systems for over 50 [...]
Automatic Accelerometer Calibration System
Automatic Accelerometer Calibration System Customer Case The customer's Automated Accelerometer Calibration System provides NIST traceable calibration of most accelerometer types, whether self-generating piezo-electric or accelerometers requiring current or voltage excitation. The output of the accelerometer can be charge or voltage, single- ended or differential, AC or DC coupled, isolated or grounded. In building the automatic calibration system, the need is for optimum versatility with regards to the data acquisition card. LabVIEW is the desired control software, and Signal to Noise Ratio and high vertical resolution is of utmost importance for the small variations that occur in Vibration and Shock [...]
How to Implement a Complete Digital Closed Loop Control System
Co-authored by Don Welch, Director of Engineering and Business Development Cory Bufi, Software Engineer Isaac Abbott,Product Innovation Engineer – PBS Group Request Whitepaper Today’s electronic designs often call for reasonably fast and precise positioning of miniature components for process deposition elements such as ink jet nozzles, 3D printing elements etc. And as process control moves from mm positioning to micron to sub-micron positioning it becomes necessary to monitor and control positioning actuators such as piezo flexure stage and voice coil motors. Open loop control of the positioning stage may have been adequate in non-precision applications but piezo electric [...]
Vitrek featured in Evaluation Engineering’s Special Report
Click here to check out the latest article featuring Vitrek Products!
Measuring Brake Rotor Thickness Variation with Capacitive Sensing GalleryMeasuring Brake Rotor Thickness Variation with Capacitive Sensing
Brand-MTI, Industry-Aerospace, Industry-Automotive, Industry-Consumer Products, Industry-Government/Military, Industry-Manufacturing, Industry: Transportation, Knowledge Center-MTI, Products-MTI-Capacitance, Whitepapers-MTI, Z-REPUB, z1
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 [...]
Deep PCI Capture of Fast Charge-Couple Device (CCD) Array Data
Deep PCI Capture of Fast Charge-Couple Device (CCD) Array Data Customer Case A customer wants to digitize data from a 256x256 infrared charge-couple device (CCD) array. The array data is clocked at 4 MHz through two output channels. Exactly two clock cycles occur between 12-bit line signals, and a dozen or more clock cycles occur between successive frames. The customer wants to digitize the data for a minute or more. Since light level signals from the array can vary widely in amplitude, 12-bit resolution is required. GaGe Case Solution The customer will use the CompuScope 512/PCI with the External [...]