AccoTEST硬件单板及编程- QVM

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本板保存校准数据
技术指标(1)
Sample Depth Measurement Type Bias Voltage
±10.0 V Max
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QVM
64K*18bits per channel Max、Min、Avg、Trigger point、RMS、FFT、THD、SNR、SINAD
// define logical channel 0 // define logical channel 1
StsSetModuleToSite(MD_QVM, SITE_1, 0, 1,-1); //set physical channel 0 and 1 to SITE1 StsSetModuleToSite(MD_QVM, SITE_2, 2, 3, -1);//set physical channel 2 and 3 to SITE2 StsSetModuleToSite(MD_QVM, SITE_3, 4, 5, -1);//set physical channel 4 and 5 to SITE3 StsSetModuleToSite(MD_QVM, SITE_4, 6, 7, -1);//set physical channel 6 and 7 to SITE4
18bit ADC 1MHz
Resolution of Sampling Interval Resolution LPF THD SNR SINAD
Measurement Range
Impedance Maximum Sample Rate
±4V,±2V,±1V
1M 10MHz
Adjustment Range of Sampling Interval
±(100uV+0.01%)
±(100uV+0.01%) ±(100uV+0.01%) ±(150uV+0.01%) ±(200uV+0.01%) ±(500uV+0.01%)
±10V
±20V ±50V ±100V
>1G
1M 1M 1M
78.1uV
156.3uV 390.6uV 781.3uV
±(1mV+0.01%)
siteNO 选择工位号。 0: Site1, 1: Site2, 2: Site3, …… sampleNumber AVERAGE_RESULT :返回所有采样点的平均值 MAX_RESULT:返回所有采样点的最大值 MIN_RESULT:返回所有采样点的最小值 TRIG_RESULT: 返回触发时对应采样点的位置,需配合SetMeasTrig()使用 RMS_RESULT: 返回所有采样点的有效值 非负值N:返回的是第N个采样点的测量值。假设MeasureLADC或MeasureHADC的采样次数为sam,则 0≤N≤sam-1。
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GetMeasResult()
double GetMeasResult(UINT siteNO, int sampleNumber);
Remarks 获取测量结果。在调用此函数前需调用MeasureLADC()或MeasureHADC()函数进行采样。 Parameters
QVM
单板最大四通道,每通道浮动,可由用户选择配置为2/4个通道
具备板上硬件数据处理功能,包括最大值、最小值、平均值、跳变值、RMS、FFT、THD、
SNR、SINAD 高精度基准输出 隔离电压1000V
支持与STS 8200系统内FPVI10、FOVI100和DIO模块同步
工作模式: -支持16工位并行测试 -支持乒乓(Station A/Station B)测试
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原理框图
QVM
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外观结构及拨码开关
QVM
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与测试盒连接
QVM
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QVM()
QVM(BYTE channel) QVM(BYTE byChannel, char *chName); Remarks 定义一个QVM,并指定使用的逻辑通道号。 Parameters Bychannel QVM逻辑通道号。范围0~15。 Example QVM OUT1(0, “OUT1”) ; QVM OUT2(1, “OUT2”) ;
Example
qvm0.MeasureLADC(1000,1,QVM_LADC_10V,QVM_LADC_40KHz,MEAS_NORMAL);
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MeasureHADC()
void MeasureHADC(UINT sampleTimes, double sampleInterval, QVM_HADC_VRANGVRange, QVM_MEAS_MODE measMode, UINT T1, UINT T2, UINT T3, UINT T4) Remarks 设置高速通道工作参数并进行采样,将采样结果存储在板上存储器中。在调用此函数前需调 用Connect()函数接通输入输出继电器 Parameters sampleTimes 采样次数,取值范围1~65535,默认为100。 如果需进行FFT,采样点数范围为64~32768。 sampleInterval 采样间隔,取值范围0.1~1,分辨率为0.1,默认为1。单位为us。 VRange QVM_HADC_4V, QVM_HADC_2V, QVM_HADC_1V. Default: QVM_HADC_4V measMode MEAS_NORMAL //普通测量模式 MEAS_AWG //AWG模式 默认为MEAS_NORMAL。 Example qvm0.MeasureHADC(1000, 0.1, QVM_HADC_4V , MEAS_NORMAL);
±(2mV+0.01%) ±(5mV+0.01%) ±(10mV+0.01%)
12 bit ADC(High speed Measure Mode) Range ±1V ±2V ±4V Reference Output Range Resolution Accuracy ±10.0 V 18bits 0.005%(FS) Input Z 1M 1M 1M Resolution 0.61mV 1.22mV 2.44mV Accuracy (Offset+%Rd) ±(1mV+0.1%) ±(2mV+0.1%) ±(4mV+0.1%)
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MeasureLADC()
void MeasureLADC(UINT sampleTimes,double sampleInterval,QVM_LADC_VRANGVRange, QVM_LADC_FILTERFilter,QVM_MEAS_MODE measMode,UINT T1, UINT T2, UINT T3, UINT T4)
0.1us~1.0us
0.1us 12bits
12bit ADC 10MHz
Resolution of Sampling Interval Resolution
Bandwidth
THD
>10MHz
-75dB(Vpp=4.0V, Freq=100KHz)
技术指标(2)
Range
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Measurement Range Impedance Maximum Sample Rate Adjustment Range of Sampling Interval
±100V,±50V,±20V,±10V,±5V,±2V,±1V, ±500mV,±200mV,±100mV 1G ( <= ±10V Range ), 1M( > ±10V Range ) 1MHz 1us~1300us 0.1us 18bits 10K、40K、100K、400K -90dB (Vpp=10.0V, Freq=1KHz,LPF=40KHz) 87dB (Vpp=10.0V, Freq=1KHz,LPF=40KHz) 81dB (Vpp=10.0V, Freq=1KHz,LPF=40KHz)
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AccoTEST硬件单板及编程 --- QVM
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特性
具备1MHz SPS 18bit低速高精度测量模式 具备10MHz SPS 12bit高速测量模式 采样速率可调 每通道具备18bit x 64K深度的存储器
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Connect()
void Connect(); Remarks 接通QVM通道的输入输出继电器。在测量之前应先接通输入输出继电器
Example qvm0. Connect(); //Connect the output relay of qvm0
Disconnect()
void Disconnect(); Remarks 断开QVM通道的输入输出继电器。在测量完成之后应断开输入输出继电器 Example qvm0. Disconnect(); //Disconnect the output relay of qvm0
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QVM
Resolution Accuracy (Offset+%Rd)