Vibration calibration and measurement techniques are critical for ensuring the accuracy and reliability of sensors and instrumentation employed in diverse fields such as civil engineering, seismology, ...

As commercial, military/aerospace, and other communications designs extend into the millimeter wave (mmWave) spectrum, engineers must adapt their testing procedures and require more from instruments ...

Pulse oximeters, a type of photoplethysmography (PPG) sensor, are electronic devices that measure a person’s blood-oxygen saturation (SpO 2) and heart-rate (HR) levels. Since their inception in the ...

Designing and testing communications systems with analog baseband I/Q (BBIQ) circuits can be a challenge for RF engineers. The goal is to make traditional signal-analysis measurements in the spectral ...

A study introduces a novel method for calibrating the spring constant of FluidFM micropipette cantilevers, crucial for the accurate measurement of forces in microfluidic environments. This method ...

Soil moisture measurement is fundamental to understanding hydrological processes, crop water dynamics, and broader environmental monitoring. Recent advancements have driven the development of ...

A program for calibration and routine testing of weighing instruments ensures accurate results. A measurement of any kind is affected by the errors and uncertainties that exist in that measurement ...

In longitudinal research studies with follow-up examinations, the devices used to measure phenotypes may change over time. When a device change occurs, the two devices should be calibrated to each ...

Yozo Shimada and Kazuhiro Shimaoka, Electromagnetic Waves Division, the Metrology Institute of Japan of the National Institute of Advanced Industrial Science and Technology (AIST; President: Ryoji ...

Calibration always seems to be scheduled at the most critical time in a project. For example, assume that a piece of test equipment is on a six-month calibration cycle. At month five, the design ...