1.5V Piezo Transducer Magnetic Buzzer Car Alarm Sensors With Pin
Place of Origin:Jiangsu China (Mainland)
Min. Sound Output at 10cm (dB)
Rated Voltage (Vp-p)
Operating Voltage (Vp-p)
Resonant Frequency (Hz)
Max. Current Consumption (mA)
Coil Resistance (ohms)
Coil Impedance (ohms)
Operating Temperature (C)
Storage Temperature (C)
Passive buzzer have not internal drive circuit inside, We used to
name them as acoustic. Passive work buzzer square wave signal.
Passive buzzer can't make a sound by direct current.
A device for transforming mechanical into electrical energy, which
consists of a magnetic field including a variable-reluctance path
and a coil surrounding all or a part of this path, so that
variation in reluctance leads to a variation in themagnetic flux
through the coil and a corresponding induced emf (electromotive
Applications for EMAT
EMAT has been used in a broad range of applications and has
potential to be used in many other applications. A brief and
incomplete list is as follows.
1. Thickness measurement for various applications
2. Flaw detection in steel products
3. Plate lamination defect inspection
4. Bonded structure lamination detection
5. Laser weld inspection for automotive components
6. Various weld inspection for coil join, tubes and pipes.
7. Pipeline in-service inspection.
8. Railroad and wheel inspection
9. Austenitic weld inspection for power industry
10. Material characterization