Main Configuration: 3.5MHzR50 Convex Array Broadband Probe (Frequency Range: 2.0MHz～5.5MHz)

(The performance requirements for the optional probes, namely 3.5MHzR20, 6.5MHzR10, and 7.5MHzL40, are similarly detailed but with specific ranges and values tailored to their respective configurations and frequency ranges.)

Color Flow Imaging Mode Performance Requirements

In the color flow imaging mode, the detection depth of each probe at its Doppler operating frequency should meet the following requirements:

(Detailed table specifying Doppler frequencies and detection depths for each probe model.)

Color flow images should basically coincide with the grayscale images of the vessels they are within. Blood flow direction should be correctly identified without aliasing.

Spectral Doppler Mode Performance Requirements

In the spectral Doppler mode, the detection depth of each probe at its Doppler operating frequency should also meet specific requirements.

(Detailed table specifying Doppler frequencies and detection depths for each probe model, similar to the color flow imaging mode.)

The blood flow velocity reading error of the color Doppler ultrasound should not exceed 20%. The cursor position in the sampling area should be accurate.

1.3.4 Various Functions

Display Modes:

• Black and white images: B, 2B, 4B, left/right B/M, B/D, PW, M, local amplification in B-mode
• Blood flow images CFM: B/C, BC/B, B/BC
• Spectra: B/D, B/C/D, PW

Color Flow Image Adjustment Parameters:

• Doppler frequency, position and size of the sampling box, baseline, color gain, deflection angle, wall filter, number of accumulations, etc.

(Tip on interpreting color flow information based on color brightness and direction relative to the probe.)

Probe Types:

• Probe sockets: 4 for trolley-mounted units, 2 for portable units
• Probe frequency: 2.0MHz～10.0MHz, with 8-level frequency variation
• Probe varieties: convex, micro-convex, linear array, endocavity

Sound Power:

• 16-level adjustable output sound power

Display Depth:

• Continuously adjustable using an encoder

Focusing:

• Electronic focusing + acoustic lens focusing, with single, double, triple, and quadruple focus points, and continuous dynamic focusing in the front-end reception

B-mode Display:

• Image amplification (in real-time or frozen state), up to 4x
• Vertical/horizontal flipping of images
• Continuously adjustable display depth

M-mode Display:

• Scanning speed: 4 levels

Digital Beamforming:

• Continuous dynamic focusing, dynamic aperture, dynamic apodization, and full-range reception delay weighting and summation throughout the image, supporting half-order scanning and ±10° linear reception angle multi-beam parallel processing technology

Signal Processing and Doppler:

• Features dynamic filtering and quadrature demodulation, total gain adjustment, 8-segment TGC adjustment for B, C, and D modes, separate gain adjustment for black and white images and color flow, Doppler stereo output volume adjustment from 0-100%, 6-level Doppler baseline adjustment, adjustable pulse repetition frequencies for CFM and PWD, and D-line speed adjustment

Image Processing Functions:

• Dynamic range transformation and logarithmic compression, spatial filtering, edge enhancement, grayscale transformation, selectable scan speeds for B-mode and M-mode, high-density and high-frame rate options, control of convex array scan angle and linear array scan width, image flipping, grayscale inversion, black and white image resolution of 1024×768×8bit (256 grayscale levels), and color image resolution of 1024×768×8bit×8bit×8bit color encoding