Highly accurate resistors

摘要

Vishay has released a video that demonstrates the stability of the FSR secondary standard resistor for laboratory calibration standards and digital multimeters. Using an 8.5-digit ohmmeter, the demo shows the ability of an FSR device, built on bulk metal foil, to withstand rough handling with no change whatsoever in its resistance value. Even after being dropped on the floor, buried in potting soil, and doused with water, the device shows the same ohmic value out to the fifth decimal place in before-and-after tests.