Thông báo lịch nghỉ lễ Giải phóng Miền Nam và Quốc tế Lao động 30/4 - 1/5

A practical introduction to oscilloscopes and Bluetooth multimeters, covering bandwidth, sample rate, channel count, remote testing, and the differences between OW18B and B35T+.

An oscilloscope may display less amplitude than the actual signal when its analog bandwidth attenuates high-frequency content. Understanding the -3 dB point, harmonic content, bandwidth limits, and rise time helps explain the difference.

Industrial rubber typically falls within the 40–80 Shore A range, though there is no single standard hardness for all types; components such as gaskets, seals, vibration dampers, and rollers may utilize different hardness levels depending on specific requirements. Temperature also significantly affects measurement results: heated rubber tends to soften—lowering the Shore A value—while cold rubber tends to harden, causing the Shore A reading to rise.

Selecting a scale that closely matches the measured signal helps an oscilloscope use its available ADC levels more effectively and reveal smaller voltage changes.

An oscilloscope can display less amplitude than the actual signal when its bandwidth is too close to the measured frequency. Understanding the -3 dB point, harmonic content, bandwidth limits, and rise time helps prevent misleading waveform measurements.