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A kind of ultrasonic equipment testing system

A technology of ultrasonic equipment and detection system, which is applied in the field of electricity, can solve problems such as the inability to realize automatic testing, the lack of quantitative testing of receiving performance, and the inability to perform or implement simultaneously.

Active Publication Date: 2021-06-22
QINGDAO HISENSE MEDICAL EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process is very inefficient and only suitable for measurements during R&D
[0003] At present, each ultrasound manufacturer has its own way to realize the test of transmission and acceptance. For example, Neusoft will use the "porcupine board" to lead each transmission channel and reception channel from the ultrasound system through a circuit board, and then select the transmission test through jumpers Or receiving test, the two tests cannot be carried out or realized at the same time, and automatic testing cannot be realized. It is still necessary to connect an oscilloscope or a signal generator to the "porcupine board" for testing; Lanyun directly connects the same signal to all At the receiving end, the detection of the receiving channel can be realized by turning off the transmission. You can directly see whether there is a problem with the receiving channel directly through the display output of the ultrasonic system, but this method cannot test the transmission, and there is no quantitative test of the receiving performance

Method used

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  • A kind of ultrasonic equipment testing system
  • A kind of ultrasonic equipment testing system
  • A kind of ultrasonic equipment testing system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Embodiment 1, when the ultrasonic device under test is not connected to the ultrasonic probe, a special test mode needs to be set, and according to the set special test mode, the ultrasonic device under test can realize the following functions:

[0063] 1. Set any transmission channel, including the number of the transmission channel and the number of transmission channels, for example, set the transmission channel No. 1, No. 2, No. 3... to transmit;

[0064] 2. According to the characteristics of the transmission channel of the device under test, control the transmission channel to transmit arbitrary waveforms, such as transmitting pulse signals with different frequencies, different CYCLEs, and different interval periods. Taking the emission channel control based on the pulse generator as an example, the pulse generator can be controlled to emit arbitrary pulses of different widths, the number of pulses can also be set arbitrarily, and the emission interval can also be ...

Embodiment 2

[0070] Embodiment 2. The detection board in this system is used to replace the probe and connect to the probe connector of the device under test. The basic block diagram of the detection board is as follows image 3 as shown, image 3 Taking 8 transmission signal detection channels and 8 reception signal injection channels as an example, there may be more in practical applications. The detection board in this system is divided into five parts, including a transmission signal detection module (also called a transmission excitation detection module), a reception signal injection module, a switch switching module, a probe connection module and a control module.

[0071] Module 1. Transmission signal detection module, including the following three parts:

[0072] 1. The virtual load is formed by the parallel connection of resistors and capacitors. When the probe is not connected, the load is used as a virtual probe, that is, each channel of the ultrasonic equipment under test is ...

Embodiment 3

[0087] Embodiment 3, the upper computer is connected with the ultrasonic device under test and the control module of the detection board, and is used to set the test mode of the ultrasonic device under test and communicate with the detection board. The specific implementation is as follows:

[0088] 1. Communicate with the ultrasonic device under test, set the test mode of the ultrasonic device under test, and receive the original signal of the receiving channel of the device under test, and analyze the original signal for noise, gain, frequency and other parameters;

[0089] 2. Communicate with the detection board, set the working mode of the detection board, and provide the detection board with parameters related to receiving and injecting signal waveforms according to the working mode, receive the emission excitation signal obtained by the detection board, and analyze the spectrum, harmonics, waveforms, etc. of the emission signal Each parameter index is analyzed, and the em...

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Abstract

The present application discloses an ultrasonic equipment testing system, which is used to automatically switch channels, automatically collect, transmit, and receive signals, and automatically analyze signals to realize automatic testing of the performance of the ultrasonic front-end analog circuit. An ultrasonic device detection system provided by the present application includes a detection board and a host computer connected to the detection board; the host computer is used to set the test mode of the ultrasonic device under test; and, notify the test board of the test mode of the ultrasonic device under test; Wherein, the test mode includes a transmission performance test, a reception performance test, a front-end loopback performance test, and a channel function test; wherein, the channel function test includes a transmission function channel test and a reception function channel test; The ultrasonic device under test sends a signal to detect the channel status of the ultrasonic device under test.

Description

technical field [0001] The present application relates to the electrical field, and in particular to an ultrasonic equipment detection system. Background technique [0002] In the R&D, design and production stages of ultrasonic equipment, it is necessary to test and analyze the transmitting and receiving performance of the ultrasonic front end to ensure that the transmitting and receiving performance reaches the maximum performance level of the chip, and to ensure that the consistent performance of each product meets the requirements and reaches the design time. s level. Usually the ultrasound system includes N ultrasonic analog front-end channels, each analog front-end channel includes a transmitting channel, a receiving channel and a T / R switch, the signal and control part includes the control and main control of the transmitting circuit and the receiving circuit, the main control Responsible for the post-processing of ultrasonic signals, data transmission, and ultrasonic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B8/00
CPCA61B8/58
Inventor 金阳王桂成亓科于琦
Owner QINGDAO HISENSE MEDICAL EQUIP