Classification of the Medical USG Transducer

There are two methods of classification of transducer and classification
according to the marking method of the USG transducer symbols. One is
classified by the working principle, and the other is classified by the amount
of detection. According to the working principle, there are strain transducers,
capacitive transducers, inductive transducers, piezoelectric transducers,
magnetoelectric transducers, pyroelectric transducers and photoelectric
transducers. In addition to the common classification methods of the USG
transducer, there are various classification methods based on transducer
material, transducer structure, energy conversion fraction, etc. All of them
have their advantages and limitations.

1. The medical USG transducer can be distinguished by detection

According to detection, the medical USG transducer can be divided into
displacement transducer, flow transducer, temperature transducer, speed
transducer, pressure transducer, etc. As for pressure transducers, there are
metal strain gauge pressure transducers, semiconductor pressure transducers,
capacitive pressure transducers and other USG transducers that can detect
pressure. In terms of the temperature transducer, there are thermistors,
thermocouples, PN junction temperature transducers and other USG transducers
that can detect temperature.


2. The transducer in medical can be classified according to the human senses
that can be replaced

The USG transducer can be classified according to the human senses that the USG
sensor can replace. For example, vision transducers include various optical
transducers and other USG transducers that can replace vision functions.
Auditory transducers include various pickers, piezoelectric transducers,
capacitive transducers, and other USG transducers that can replace auditory
functions. Olfactory transducers include various gas-sensitive transducers and
other USG transducers that can replace olfactory functions. This classification
method is beneficial to the development of bionic transducers.

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