Spectrometer

spectrometer, also known as the spectrometer. Photomultiplier tube in a light position detector to measure the intensity of the spectral lines of different wavelengths means. Which is configured by an entrance slit, a dispersion system and an imaging system and one or more of the composition of the exit slit. Dispersive element in the radiation source of electromagnetic radiation isolating the desired wavelength or wavelength region of, and in the selected wavelength (or scan a band) for strength measurement. Monochromator polychrometer into two.
 

Ultrasound

Ultrasound is an acoustic frequencies above 20,000 hertz, which direction is good, strong penetrating power, easy to get a higher concentration of acoustic energy in the water propagation distance, can be used for distance, speed, cleaning, welding, gravel, sterilization and disinfection. In medicine, the military, industry, agriculture has many applications. Ultrasonic its upper frequency limit is approximately equal to the hearing person's name.

universal impact machine

Ultrasound is an acoustic frequencies above 20,000 hertz, which direction is good, strong penetrating power, easy to get a higher concentration of acoustic energy in the water propagation distance, can be used for distance, speed, cleaning, welding, gravel, sterilization and disinfection. In medicine, the military, industry, agriculture has many applications. Ultrasonic its upper frequency limit is approximately equal to the hearing person's name.