The pulse generator, used in the Scanning Acoustic Microscope (SAM) plays a vital role in the system, mainly responsible for generating and transmitting ultrasonic pulses. The SAM uses these ultrasonic pulses to scan the sample and generate images. The pulse generator not only controls the emission of the ultrasonic signal,but also ensures that the frequency, amplitude ,and waveform of the signal meet the application requirements to obtain high-quality imaging results.

Important component of scanning acoustic microscope — pulse generator

The role of the pulse generator in ultrasonic scanning microscopy:

1. Emission of ultrasonic pulses: The pulse generator emits pulse signals of specific frequency and duration, which are converted into ultrasonic waves by the transducer and transmitted to the sample.
2. Signal control: The pulse generator controls the frequency, pulse width, and interval of the ultrasound. These parameters directly affect the propagation and reflection characteristics of the ultrasound in the sample, thereby affecting the resolution and quality of the image.
3. Synchronization and acquisition: The pulse generator usually works synchronously with the receiving system (such as a receiver or transducer) to ensure that there is a precise time interval between the emission and reception of ultrasound. This time interval can be used to calculate the time it takes for ultrasound to travel from the surface of the sample to the inside and reflect back, thereby generating images or performing depth measurements. This is A-scan and c-scan image of direct bond copper.
4. Enhanced imaging resolution: High-frequency ultrasound can provide higher resolution, and the pulse generator needs to be able to provide sufficiently fine control to generate pulse signals suitable for high-frequency imaging to achieve more accurate non-destructive testing results.

In short, the pulse generator is very important in ultrasonic scanning microscopes. It directly affects the emission characteristics of ultrasonic waves, imaging accuracy, and the effect of non-destructive testing. If you need more detailed technical parameters or selection suggestions, please provide more background information and I can provide you with a more specific answer!