CN105352450A - QTM3 laser box data analysis method - Google Patents

Abstract

The present invention relates to a QTM3 laser box data analysis method. The system employed by the method comprises a PXI host machine, an NI PXIE-5122 oscilloscope module and an NI PXIE-6528 group isolation multifunction data acquisition module. The NI PXIE-5122 oscilloscope module is connected to a laser signal collection unit. The NI PXIE-6528 group isolation multifunction data acquisition module is connected to a motor signal collection unit. The NI PXIE-5122 oscilloscope module and the NI PXIE-6528 group isolation multifunction data acquisition module are connected to the PXI host machine respectively. The PXI host machine is connected to a computer through collection software which analyzes the oscilloscope analog signal collected by the NI PXIE-5122 oscilloscope module through Labview programming, and then combined with the measurement start and stop signals collected by the NI PXIE-6528 group isolation multifunction data acquisition module, the diameter value measured by a laser in a sampling measurement time is obtained.

Description

A kind of QTM3 laser box data analysing method

Technical field

The present invention relates to a kind of QTM3 laser box data analysing method.

Background technology

QTM3 laser box principal organ comprises host computer, clamper and laser instrument and laser control box.Clamper fixed sample during measurement, and start to rotate a circle, laser control box starts to measure and adds up the diameter value of sample different angles simultaneously, and the most at last the rotary sample diameter value added up of a week on average after export to host computer.The independent diameter value of all angles can not be provided.Specify in GB 22838.3-2009, the length of scan channel at least should than the maximum gauge that will measure large 50%, sample in half rotation (180 °) or circle (360 °) period by minimum 100 times of laser beam flying.Originally we do not have means to judge whether instrument process data more than 100 times.

Originally we used QTM3 circumference gauge can only obtain the statistical value of rotary sample diameter after a week, and the monodrome in process can not get.Can not judge whether this instrument meets the requirement of GB.

Summary of the invention

In order to solve above-mentioned technical matters, the object of this invention is to provide a kind of QTM3 laser box data analysing method, the method gathers the procedural test data of QTM3 circumference gauge laser instrument by NI test macro, in order to judge whether instrument meets Standard and whether measure diameter number of times more than 100 times, and can judge the circularity of test sample according to the angle of motor rotation and corresponding diameter value.

In order to realize above-mentioned object, present invention employs following technical scheme:

A kind of QTM3 laser box data analysing method, the system that the method adopts comprises PXI main frame, NIPXIE-5122 oscilloscope module and the multi-functional number of NIPXIE-6528 group isolation adopt module, described NIPXIE-5122 oscilloscope module connecting laser signal gathering unit, the multi-functional number of NIPXIE-6528 group isolation adopts model calling motor signal collecting unit, NIPXIE-5122 oscilloscope module and the multi-functional number of NIPXIE-6528 group isolation are adopted module and are connected to PXI main frame respectively, PXI main frame connects computing machine by acquisition software, described acquisition software is programmed by Labview, the oscilloscope analog signal collected by NIPXIE-5122 oscilloscope module is analyzed, the measurement beginning and termination signal that module acquires arrives is adopted again in conjunction with the multi-functional number of NIPXIE-6528 group isolation, obtain the diameter value that sample Measuring Time inner laser device records, the method comprises the following steps:

1) first when not adding sample, the duration of the high level of record NIPXIE-5122 oscilloscope module output signal, first data are first stored in the buffer area of PXI main frame;

2), after adding sample, record NIPXIE-5122 oscilloscope module output signal, being high level position during interpolation sample, adding sample part region and having occurred low level, the time that record low level continues, data being first stored in the buffer area of PXI main frame;

3) utilize NIPXIE-6528 group to isolate multi-functional number and adopt the moment that module acquires clamper motor signal collecting unit starts rotation and the moment of stopping the rotation, make NIPXIE-6528 group isolate multi-functional number by program design and adopt the buffer area that data that module collects when rotary sample are stored into PXI main frame, other time data directly filter out;

4) calibrate: adding a known diameter is in the laser the standard component of a, record the time t that this master bar causes low level to continue, so sample diameter and occur that the corresponding relation of low duration just can obtain;

5), after measurement terminates, the data of buffer memory processed and calculates, finally export and be saved in self-defining form.

The present invention, owing to have employed above-mentioned technical scheme, solves following problem: (1) laser instrument internal circuit is complicated, and laser analog signal output node is found in Water demand circuit and experiment.(2) clamper and the work of laser instrument are the different control circui of two covers, so need to gather beginning and end signal that clamper motor signal gathers as laser signal simultaneously.(3) frequency of laser die analog signal is very high, and computing machine has little time transmission limit, limit and processes real-time output valve, can only first by all analog signal storage collected to buffer area, reprocessing data after a sample terminates.

The present invention directly calculates the diameter value of sample in different angles by NIPXIE-5122 module acquires laser die analog signal, adopt module acquires QTM3 motor signal by the multi-functional number of NIPXIE-6528 group isolation simultaneously, export simultaneously and be saved in computer, just in order to judge whether instrument meets Standard and whether measure diameter number of times more than 100 times, and can judge the circularity of test sample according to the angle of motor rotation and corresponding diameter value.

Accompanying drawing explanation

Fig. 1 is system construction drawing of the present invention.

Embodiment

As shown in Figure 1, build hardware system: PXI main frame, NIPXIE-5122 oscilloscope module, the multi-functional number of NIPXIE-6528 group isolation adopts module, described NIPXIE-5122 oscilloscope module connecting laser signal gathering unit, the multi-functional number of NIPXIE-6528 group isolation adopts model calling motor signal collecting unit, and NIPXIE-5122 oscilloscope module and the multi-functional number of NIPXIE-6528 group isolation are adopted module and be connected to PXI main frame respectively, and PXI main frame connects computing machine by acquisition software.

Software simulating: programmed by Labview, the oscilloscope analog signal collected by NIPXIE-5122 oscilloscope module is analyzed, adopt in conjunction with the multi-functional number of NIPXIE-6528 group isolation the measurement beginning and termination signal that module acquires arrives again, obtain the diameter value that sample Measuring Time inner laser device records.

Method of the present invention comprises the following steps:

1) first when not adding sample, the duration of the high level of record NIPXIE-5122 oscilloscope module output signal.Because the frequency analog signal that laser instrument exports is high, general CPU processing speed and transmission speed do not catch up with, so first data are first stored in the buffer area of PXI.

2), after adding sample, being high level position during interpolation sample, having there is low level because adding sample part region, the time that record low level continues, data being first stored in the buffer area of PXI in record NIPXIE-5122 oscilloscope module output signal.

3) utilize NIPXIE-6528 group to isolate multi-functional number and adopt the moment that module acquires clamper starts rotation and the moment of stopping the rotation.Make NIPXIE-6528 group isolate multi-functional number by program design and adopt the buffer area that data that module collects when rotary sample are stored into PXI, other time data directly filter out.

4) calibrate: adding a known diameter is in the laser the standard component of a, record the time t that this master bar causes low level to continue.So sample diameter and occur that the corresponding relation of low duration just can obtain.

5), after measurement terminates, the data of buffer memory processed and calculates, finally export and be saved in self-defining form.

Claims (1)

1. a QTM3 laser box data analysing method, it is characterized in that the system that the method adopts comprises PXI main frame, NIPXIE-5122 oscilloscope module and the multi-functional number of NIPXIE-6528 group isolation adopt module, described NIPXIE-5122 oscilloscope module connecting laser signal gathering unit, the multi-functional number of NIPXIE-6528 group isolation adopts model calling motor signal collecting unit, NIPXIE-5122 oscilloscope module and the multi-functional number of NIPXIE-6528 group isolation are adopted module and are connected to PXI main frame respectively, PXI main frame connects computing machine by acquisition software, described acquisition software is programmed by Labview, the oscilloscope analog signal collected by NIPXIE-5122 oscilloscope module is analyzed, the measurement beginning and termination signal that module acquires arrives is adopted again in conjunction with the multi-functional number of NIPXIE-6528 group isolation, obtain the diameter value that sample Measuring Time inner laser device records, the method comprises the following steps:

1) first when not adding sample, the duration of the high level of record NIPXIE-5122 oscilloscope module output signal, first data are first stored in the buffer area of PXI main frame;

2), after adding sample, record NIPXIE-5122 oscilloscope module output signal, being high level position during interpolation sample, adding sample part region and having occurred low level, the time that record low level continues, data being first stored in the buffer area of PXI main frame;

3) utilize NIPXIE-6528 group to isolate multi-functional number and adopt the moment that module acquires clamper motor signal collecting unit starts rotation and the moment of stopping the rotation, make NIPXIE-6528 group isolate multi-functional number by program design and adopt the buffer area that data that module collects when rotary sample are stored into PXI main frame, other time data directly filter out;

4) calibrate: adding a known diameter is in the laser the standard component of a, record the time t that this master bar causes low level to continue, so sample diameter and occur that the corresponding relation of low duration just can obtain;

5), after measurement terminates, the data of buffer memory processed and calculates, finally export and be saved in self-defining form.