The 5560A from Fluke Calibration lets you calibrate DMMs to 6½. Other models handle fewer digits.
Calibration
Traceability and the hierarchy of calibration
Advances in the science of measurement are simplifying the task of accurately quantifying uncertainty. Michael Brown, Fluke Calibration Accurate measurements are critical to every aspect of our lives; that’s why metrology is the oldest science in the world. Our ability to understand the world around us depends on how well we can measure it. As […]
What to look for during instrument calibration
When you send an instrument to a calibration lab, what do you expect to happen? The comprehensive definition of calibration is a verification of instrument specifications by measuring actual performance using external lab standards, normally instruments, which have better performance than the thing they’re measuring and which are traceable to the International System of Units […]
Test data analysis software includes Python interface, supports multi-core PC parallel processing
The new version of data analysis software imc FAMOS 2022 from manufacturer imc Test & Measurement, a brand of Axiometrix Solutions, now integrates a Python interface and supports parallel processing for modern multi-core PC architectures. imc FAMOS offers professional tools for the visualization and analysis of test and measurement data from a variety of data […]
Automotive data logger captures multiple data streams simultaneously
The X2E XORAYA Z7 Automotive Datalogger can record data from multiple different automotive bus systems simultaneously. All data is logged with a precise, central timestamp with 100-nsec resolution and either saved on the internal SSD or transferred to an external computer system via Ethernet. Optionally, the logged data can be stored on a XORAYA external […]
Dual-channel digitizers provide synchronous 3.2 GS/sec, 12-bit sampling on each channel
A new dual-channel digitizer provides synchronous 3.2 GS/sec, 12-bit sampling on each channel. This means no data needs to be lost, even when the card is acquiring data with both channels running at their maximum sampling rate. The ultrafast bus allows all the data to be transferred directly to PC memory for storage, or even […]
The difference between signal under-sampling, aliasing, and folding
Most engineers today are sensitive to problems that arise when digital measurement instruments try to capture signals containing frequencies that are too high for the sampling circuitry to handle. Nevertheless, there are terms associated with sampling problems that sometimes get confused. Probably the three concepts most likely to cause issues are under-sampling, aliasing, and folding. […]
What’s all this VNA calibration stuff?
In general, the electrical characteristics of circuits associated with high-frequency instruments vary significantly with time. Signal sources, receivers, and interconnections drift with vibrations, cable flexing, temperature, humidity, and so forth. That’s why vector network analyzers (VNAs) are only treated as being time-invariant over short time periods (a few hours). Thus a VNA must be calibrated […]
DIO card completes PCIe instrument family
Spectrum instrumentation’s family of PCIe instrument cards also includes digitizers and waveform generators. Automated test systems often need to generate and measure analog signals. They often need to provide digital I/O for status monitoring and control of test hardware or industrial process equipment. With the addition of the M2p.7515-x4 digital I/O card, Spectrum Instrumentation completes […]
Instrument monitors optical fiber Bragg grating sensors in static and dynamic apps
A new optical interrogator, the MXFS, provides stability against external influences and a high-sensor capacity of 128 channels per device, making it a candidate for use among engineers carrying out measurements within unpredictable environments, such as construction sites or laboratories. MXFS is a fibre Bragg grating measurement device, based on the BraggMETER technology, that is […]
