Ultrasonic testing dB decibel calculations ll UT machine Amplifier circuit ll UT level 2 & 3

[@sanjeevndt9592]

Thank you sir for reply🙏

[@sanjeevndt9592]

Sir dB me d small and B capital me kyo

[@devangtandel3181]

The unit "dB" stands for decibel, which is named after Alexander Graham Bell, the inventor of the telephone. The lowercase "d" represents the prefix "deci-" meaning one-tenth, while the uppercase "B" honors Bell's name. So, together "dB" represents the decibel, a unit used to measure the intensity of sound.

[@NDTQuality]

Thank you very much for your reply