Magnetic field (Gauss) meter circuit design. The principle of the present meter is shown in the block diagram in Figure 1. The induction coil used to detect the magnetic field is represented by an ...

This sound level meter circuit can be used to control the intensity of a sound recording or in a disco. It has 5 measurement domains between 70 and 120 dB; reading accuracy is 0.5 dB. Microphone M1 is ...

Most circuit breakers have similar internal structures, which makes the technique broadly applicable. There are two types in the US, according to the Lab: bimetallic thermal and solenoid magnetic. The ...