There are many types of mechanical probes for animal B-ultrasound, generally including the following types: 13mm 3.5MHz standard universal probe, 17mm 3.0MHz universal long focal length probe, 7mm 5.5MHz high-frequency short focal length probe suitable for detecting superficial organs and small animal hearts. The above three types of animal B-ultrasound mechanical probes have similar internal structures except for slight differences in appearance

The structural principle of the animal B-ultrasound mechanical probe is that a detachable hard plastic animal B-ultrasound mechanical probe cover is equipped with a probe that emits ultrasound beams from the front end, abbreviated as the end emitting probe.

The top of the animal B-ultrasound mechanical probe is equipped with a single crystal. With the help of the oil inside the housing, the animal B-ultrasound mechanical probe can emit or receive ultrasonic beams from both sources. The chip inside the animal B-ultrasound mechanical probe is mounted on a small umbrella gear and can swing back and forth. The mechanical eccentric wheel is driven by the fan scanning machine inside the housing, which drives the active umbrella gear on the mechanical connecting rod to drive the driven umbrella gear with the chip, swinging within a range of radians.

The pulse transmission and reception circuit of the animal B-ultrasound mechanical probe precisely controls the chip to emit ultrasound beams to moving objects at regular intervals within this 90 degree fan-shaped area, and to receive echoes reflected from the interfaces of different density tissues of the animal body at regular intervals. The emitted and received sound beams are 120 lines per 90 degree swing.

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