| 详细介绍：
MFD350数字式超声波探伤仪Flaw detector
MFD350是一款便携式、数字式超声波探伤仪，它能够快速便捷、无损伤、精
确地进行工件内部多种缺陷（裂纹、夹杂、气孔等）的检测、定位、评估和诊断。
既可以用于实验室，也可以用于工程现场。本仪器能够广泛地应用在制造业、钢
铁冶金业、金属加工业、化工业等需要缺陷检测和质量控制的领域，也广泛应用
于航空航天、铁路交通、锅炉压力容器等领域的在役安全检查与寿命评估。
功能特点
全中文显示，主从式菜单，并设计有快捷按键和数码飞梭旋轮，操作便捷，
技术领先。
全数字真彩色液晶显示器，可根据环境选择背景色和波形颜色，液晶亮度可
自由设定。
高性能安保电池模块便于拆装，可以脱机独立充电，大容量高性能锂离子电
池模块使仪器连续工作时间延长到八小时以上；仪器轻小便携，单手即可以把持，
经久耐用，引导行业潮流。
主要技术参数
检测范围： (0~6000)mm
工作频率： (0.5~10)MHz
声速范围： (1000~9999)m/s
动态范围： ≥32dB
垂直线性误差：≤3%
水平线性误差：≤0.2%
分 辨 力： >40dB(5P14)
灵敏度余量： 60dB(深200mmФ2 平底孔)
数字抑制： (0~80)%，不影响线性与增益
电噪声电平： ≤10%
探头类型： 单探头、双晶探头、穿透探头
闸 门： 进波门、失波门；单闸门读数、双闸门读数
报 警： 蜂鸣报警，LED 灯报警
电 源： 直流（DC）9V；锂电池连续工作6~8 小时以上
外型尺寸： 263×170×61(mm)
环境温度： (-10~50)℃
相对湿度： (20~95)%RH
注：以上指标是在探头频率为2.5MHz、检波方式为全波的情况下所测得的。
放大接收
硬件实时采样：10 位AD 转换器，采样速度160MHz，波形高度保真
检波方式：正半波、负半波、全波、射频检波
滤波频带（0.5~10）MHz，根据探头频率全自动匹配，无需手动设置。
闸门读数：单闸门和双闸门读数方式可选；闸门内峰值读数
增益：总增益量110dB，设0、0.1dB、2dB、6dB 步进值，独特的全自动增
益调节及扫查增益功能，使探伤既快捷又准确。
探伤功能
波峰记忆：实时检索缺陷最高波，记录缺陷最大值
Φ值计算：直探头锻件探伤找准缺陷最高波后自动计算、显示缺陷当量尺寸
缺陷定位：实时显示缺陷水平、深度（垂直）、声程位置
缺陷定量：缺陷当量dB 值实时显示
缺陷定性：通过回波包络波形，方便人工经验判断
曲面修正：用于曲面工件探伤，可实时显示缺陷周向位置
DAC/AVG：曲线自动生成，取样点不受限制，并可进行补偿与修正。曲线随增益自动浮动、随声程自动扩展、随延时自动移动。能显示任意孔径的AVG 曲线。
裂纹测高：利用端点衍射波自动测量、计算裂纹高度。
门内展宽：放大回波细节，便于回波分析
动态记录：检测实时动态记录波形，存储、回放
波形冻结：冻结屏幕上显示的波形，便于缺陷分析
B 型扫描：实时扫查、横截面显示，可显示工件缺陷形状，使探测结果更直观。
发射脉冲
脉冲幅度：低、中、高分级选择，适用探头范围广
脉冲宽度：固定宽度，不可调。
探头阻尼：100Ω、200Ω、400Ω可选，满足灵敏度及分辨率的不同工作要求
工作方式：单探头、双晶探头、穿透探伤
检测范围
零界面入射~6000mm(钢中、纵波)，可连续调节
闸门报警
门位、门宽、门高任意可调；B 闸门可选择设置进波报警或失波报警；闸门内蜂鸣声和LED 灯(吵噪环境中LED 灯报警非常有效)报警及关闭。
数据存储
100 组探伤参数通道，可预先调校好各类探头和仪器的组合参数，自由设置各行业探伤标准；可存储1000 幅探伤回波信号及参数，实现存储、读出及通过USB接口传输。
实时时钟
实时探伤日期、时间的跟踪记录，并记录存储。
通讯接口
USB2.0 高速通讯传输接口
电池模块
高容量锂电池模块，在线充电和脱机充电两种充电方式，方便探伤人员使用。
MFD350 digital ultrasonic flaw detector Flaw detector
MFD350 is a portable, digital ultrasonic flaw detector, it can quickly and easily, without injury, fine
Accurate to within a variety of workpiece defects (cracks,inclusions, stoma) detection, localization, assessment and diagnosis.
Both can be used in laboratories, can also be used in the engineering field. The instrument can be widely used inmanufacturing industry, steel
Defect detection and quality control areas in need of ironmetallurgy industry, metal processing industry, chemical industry, etc., are also widely used
In-service safety inspection and life assessment in aerospace, railway transportation, boiler and pressure vessel etc..
Function characteristics
All Chinese display, master-slave menu, and the design of a shortcut keys and digital shuttle wheel, convenient operation,
Leading technology.
All digital true color liquid crystal display, according to the environment select background color and color, the LCDbrightness
Set free.
High performance security of battery module is convenient for disassembly and assembly, can be stand-alone charge, large capacity and high performancelithium ion battery
Pool module enables the apparatus to the continuous operation time is prolonged to more than eight hours;instrument for light portable, single hand that can control,
Durable, and lead the industry trend.
Main technical parameters
Detection range: (0~6000) mm
The working frequency (0.5~10): MHz
Speed range: (1000~9999) m/s
Dynamic range: 32dB
Vertical linearity error: ≤ 3%
The horizontal linear error: ≤ 0.2%
Resolution: >40dB (5P14)
Sensitivity: 60dB (deep 200mm Ф 2 flat bottom holes
Digital suppression: (0~80)%, does not affect the linear gain
Electrical noise level: ≤ 10%
The probe type: single probe, probes, penetrating probe
Gate: the gate of the inactivation gate, gate readings;single, double gate readings
Alarm: alarm buzzer, LED lamp alarm
Power source: direct current (DC) 9V; 6~8 lithium battery continuous working hours
Dimensions: 263 x 170 x 61 (mm)
The ambient temperature (-10~50 ℃)
Relative humidity (20~95):%RH
Note: the above indicators in the frequency of 2.5MHz,detection for the full wave case.
The amplified reception
Hardware real-time sampling: 10 bit AD converter,sampling rate of 160MHz, waveform of high fidelity
Detection: a positive half wave, negative half wave, Quan Bo, RF detector
The filtering band (0.5~10) MHz, according to the frequency of the probe automatic matching, without the need to manually set.
Gate reading: optional single gate and double gate readings; inside the gate peak reading
Gain: the total amount of gain of 110dB, 0, 0.1dB, 2dB,6dB step value, unique automatic
Beneficially modulate and scan the gain of function, so that testing is fast and accurate.
Detection function
Wave memory: real-time retrieval defect maximum wave,defects in the recording of the maximum
Diameter calculation of forging defects: straight probe the highest wave automatic calculation, display defect equivalent size
Defect location: real-time display defect level, depth(vertical), acoustic location
Quantitative evaluation of defect: defect equivalent dB value display
The qualitative defect: through the envelope of echo waveform, convenient artificial experience
Surface modification of: for surface flaw detection, real-time display defects in circumferential position
DAC/AVG: curve generated automatically, withoutlimitation sampling points, and can carry out thecompensation and correction. Curve with gain automatic floating, with acoustic range automatic expansion, with the time delay automatic movement. Can display any aperture AVG curve.
Crack height: Calculation of crack height measurement,using automatic endpoint diffraction wave.
The door stretching: amplification details for echo, echo analysis
Dynamic recording: detection of real-time dynamicwaveform, storage, playback
Freeze: a freeze on screen display waveform, convenient for defect analysis
B scan: real-time scanning, cross-section display, can display the workpiece defect shape, make the detection more intuitive results.
The transmitted pulse
Pulse amplitude: low, high grading, selection, apply a wide range of probe
Pulse width: fixed width, not adjustable.
Probe damping: 100 Ω, 200 ohm, 400 ohm optional, meet different sensitivity and resolution requiremen
Working mode: single probe, probes, penetration testing
Detection range
Zero interfacial incident ~6000mm (steel, longitudinal wave), can be adjusted continuously
Gate alarm
Gate, door door wide, high adjustable; B gate can be set into the wave alarm or lose wave alarm; inside the gate beeps and LED lamp (loud noise environment in the LED lamp alarm and very effective warning and closing).
Data storage
100 groups of testing parameters of channel, can make adjustment of parameters of all kinds of probe and instrument, free to set the industry inspection standard;can be stored 1000 flaw echo signals and parameters,implementation of memory, read and through the USB interface transmission.
Real time clock
Real time detection of date, time tracking, and record storage.
Communication interface
USB2.0 high-speed communication interface
The battery module
High capacity lithium battery module, charging on-line and off-line charging two charging modes, convenient inspection personnel.
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