Fluke Live Broadcast with Prizes: New 8.5-digit Digital Multimeter Technology Development and Application in Progress~
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Fluke Live Broadcast with Prizes: New 8.5-digit Digital Multimeter Technology Development and Application in Progress~
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Live broadcast time: Tuesday, August 9, 2022 at 10:00 am
Live broadcast topic: Technology development and application of new 8.5-digit digital multimeter Live
broadcast content: High-precision digital multimeters began to be used in the field of electronic measurement in the mid-to-late 1980s and became the preferred measurement tool for DC and low-frequency AC electrical measurement. It has a variety of functions, high accuracy and easy system automation, and can easily replace zero detectors, etc., but its DC input amplifier does not fully match the specific design required by the zero detector characteristics. In some key aspects, high-precision digital multimeters have certain defects, one of which is the input bias current of the instrument. The input bias current comes from the preamplifier circuit in the high-precision digital multimeter, and its value is as high as 50pA. The latest Fluke high-precision digital multimeter 8588A has a significantly smaller bias current, with a maximum of only 20pA. When initially tested, the bias current can also be adjusted to almost 0pA. This actually eliminates the offset voltage problem caused by the input bias current. Furthermore, the bias current changes very little over time, so it will remain at this level for a long time, ensuring that the Fluke 8588A high-precision digital multimeter is a suitable product to replace analog zero detectors.
This live broadcast will reveal the new technology used in the new 8.5-digit digital multimeter, explain the performance indicators through pictures and texts, and show new applications through videos.
Live lecturer:
Yang Shengli
Chief Electromagnetic Metrologist of Fluke Calibration Department Member
of MTC18 National Electromagnetic Metrology Technical Committee, member of Electronic Metrology Professional Committee of China Institute of Metrology and Testing, member of Application Working Group of National Committee on Uncertainty in Measurement.
Live broadcast prizes:
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