Blogs
Functions & Features of Advanced Hipot Testers – as published in Test & Measurement Tips – 6/18
Functions and Features of Advanced Hipot Testers June 18, 2018 by Lee Teschler Modern instruments help to check whether manufactured equipment meets the proliferating variety of international safety standards that govern factors such as grounding and the ability to withstand overvoltages. KEVIN CLARK, VITREK Electrical safety testers — often referred to as hipot testers — are an integral part of electrical and electronic equipment manufacturing. Hipot testers get thei name from the high-potential (high voltage) they produce to perform dielectric withstand and insulation resistance tests. In addition to these tests, many hipot testers provide accurate low-resistance measurements and low-resistance/high current [...]
Fast Fourier Transform
Fast Fourier Transform (FFT) eXpert FPGA DSP Feature for CompuScope Digitizers Request Quote DataSheet Fourier Transform analysis is a powerful signal processing technique used in a wide variety of applications. Typically, Fourier transformation of time domain waveforms requires the execution of the computationally intensive Fast Fourier Transform (FFT) algorithm on a host PC. Utilizing the eXpert FFT Firmware on a GaGe CompuScope Digitizer allows users to conduct computationally intensive FFT algorithms completely on the digitizer's onboard FPGA with absolutely no host system CPU loading, allowing the host PC to handle other tasks in parallel. [...]
PXIe RazorMax Express 16-Bit Digitizer
RazorMax Express 16 CompuScope 16-Bit, 1 GS/s, PXIe Gen3 Digitizer / Oscilloscope Request Quote DataSheet The GaGe RazorMax Express CompuScope PXIe Gen3 x8 digitizer features unprecedented speed and resolution with either four or two 16-bit channels at 1 GS/s and 600 MHz bandwidth, and PXIe Gen3 data streaming rates up to 5.2 GB/s in a 3U Single Slot PXIe form factor. The PXIe Gen3 x8 interface doubles the top theoretical speed of previous PXIe Gen2 x8 modules to 8 GB/s, supporting real-time data streaming rates at up to 5.2 GB/s. It also minimizes the [...]
Vendors Support Hipot, Insulation-Resistance and Ground-Bond Tests- as seen in Rick’s Blog on the EE Website – 7/18
Vendors Support Hipot, Insulation-Resistance and Ground Bond Tests by Rick Nelson - Evaluation Engineering - July 2018 To meet the requirements of your electrical safety testing applications, you can choose from a variety of instruments and systems that perform hipot, insulation resistance (IR), ground-resistance and ground-bond (GB) tests across a range of industries. Vendors offer a variety of options — from software that automates instrument control and records test results to a variety of test probes and leads. Relevant standards range from IEC 60601-11 for medical device testing to IEEE Std 43-20132 for testing the insulation resistance of electrical machinery. [...]
Picking the Right Hipot Tester For The Job – as published in Power Systems Design Magazine – 9/2018
Picking the Right Hipot Tester for the Job Understanding the testing requirements and standards will ultimately save testing time and cost. By Kevin Clark, CEO, Vitrek Hipot testers offer a range of capabilities starting with dielectric withstand and insulation resistance testing but also, in many instances, providing accurate low-resistance measurements and low-resistance/high-current outputs to test ground resistance and ground bond integrity. Selecting the right one for your application will ultimately save both time and expense in performing these essential tests. Product Safety Certification Before getting into the individual functions, it is important to point out that hipot testing is a [...]
Acoustic Engineering with Stimulus Response System
Acoustic Engineering with Stimulus Response System Customer Case The performance of music without electrical amplification requires precise acoustic engineering of its venues. A customer advises concerning large-scale renovations to existing cathedrals, concert halls and opera houses. Renovations may include decoupling the structure from its surroundings to minimize outside noise and redesigning the interior in order to optimize echo patterns. Buildings are acoustically characterized with precision sound equipment. A sound Stimulus, S(t), is generated by a loudspeaker and the Response, R(t) is received by a microphone, where t is time. Usually, the loudspeaker and microphone are positioned at the musician [...]
About Wafer Bow And Warp Measurement Systems
Semiconductor/Solar Wafer Bow And Warp Metrology/Surface About Wafer Bow And Warp Measurement Systems Thickness Measurement for Metrology Systems ASTM F657: The distance through a wafer between corresponding points on the front and back surface. Thickness is expressed in microns or mils (thousandths of an inch). Total Thickness Variation (TTV) ASTM F657: The difference between the maximum and minimum values of thickness encountered during a scan pattern or series of point measurements. TTV is expressed in microns or mils (thousandths of an inch). Figure above shows a wafer placed between two non-contact [...]
Network Integrated Circuit (IC) Testing
Network Integrated Circuit (IC) Testing Customer Case A customer makes Integrated Circuit (IC) chips that are used in home network systems. These systems can communicate with many different electronic devices by using the standard 120 Volt, 60 Hz AC household wiring to transmit signals throughout the house. This eliminates the need for extra wiring. They need to test their IC chips before selling them to the company who builds the network systems. They need to test the bit failure rate, the Signal to Noise Ratio (SNR), chip sensitivity and noise indifference. For these tests, they require a programmable analog [...]
Press Release: HVL-150 SmartProbe for use with Vitrek 4700 Precision High Voltage Meter
Vitrek’s 4700 Precision High Voltage Meter adds New HVL-150 SmartProbe™ for Expanded Measurement Range HVL-150 probe is rated to 140 KVDC/100KVAC; features ultra-low temp. coefficient attenuators and low capacitance; SmartProbe stored precision calibration data assures high accuracy, facilitates interchange with other probes/meters. […]
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