Does anyone do the GR R AND WHAT IS GRR? How?

If you have a need, you can ask me for ** and instructions.

Gauge repeatability and reproducibility,This means that the repeatability and reproducibility of the measurement system requires data to be obtained in a short period of time under the same zeroing conditions.

In order to calculate repeatability, the following conditions should be met when obtaining data: the same person, the same zeroing conditions, the same product, the same location, the same environmental conditions, and the data should be obtained in a short time.

The purpose of repeatability is simply to learn about the variability of the device.

Reproducibility wants to know the variation under different conditions, so the following conditions should be met when obtaining data: different people, the same zeroing conditions, the same location, the same environment, and the data should be obtained over a longer period of time.

Measurement method. 1. Measurement system analysis: refers to a method of detecting the measurement system in order to better understand the variation and its distribution that affect the measurement results. Through the analysis of the measurement system, we can grasp whether there are problems and the main problems of the current measurement system, so as to correct the deviation in time and make the measurement accuracy meet the requirements.

Gage repeatability and reproducibility analysis.

2. Measurement system: the collection of operations, parts, evaluators, measuring tools, and equipment (the whole process of obtaining measurement results).

3. The following procedures are usually used to evaluate the measurement system:

Bias: The difference between the observed mean of the measurement and the baseline value. Bias is often referred to as "accuracy".

Benchmark Value: Also known as an acceptable benchmark or standard value, it acts as a consistently agreed benchmark for a measured value, and a benchmark value can be determined by averaging multiple measurements with a higher level of measuring equipment.

Repeatability: The deterioration of the test value obtained by a single evaluator using the same measuring instrument when the same characteristic of the same part is measured multiple times.

Reproducibility: The variation of the average value when the same characteristic of the same part is measured by different evaluators using the same measuring instrument.

Stability: is the total variation of the measured value obtained by the measurement system when it measures a single characteristic of the same datum or part over a certain duration.

Linearity: The difference in bias values within the expected working range of the gage.

4. In general, these procedures are sometimes referred to as "gage r&r" procedures, because they are often used only to evaluate the two statistical characteristics of reproducibility and repeatability.

Repeatability: The repeatability of the measurement process means that the variation of the measurement system itself is consistent. Measurement variation due to changes in position in the instrument itself and in the food of the part are two common causes of repeatability errors.

Reproducibility: The reproducibility of the measurement process indicates that the variability of the evaluator is consistent. One way to consider assessor variability is to think that variability represents incremental bias for each rater.

If this bias or variability of the evaluators does exist, all the averages will be different for each evaluator, which can be seen by comparing the evaluators' averages for each part.

GRR is a gage repeatability and reproducibility study that is primarily used to determine how much of the observed process variation is generated by the measurement system. The menu in the minitab is located under the Statistical "Quality Tools" gage study, which has 2 processes, one is the gage r&r study (cross), and the other is the gage r&r study (nested), which is generally crossed, and nesting is suitable for the analysis of data during destructive experiments. For details, refer to the examples in the help to understand the arrangement of data in minitab.

Judging criteria: 1. If the gr&r is less than 10% of the tolerance of the measured part, there is no problem with this system.

2. If gr&r is greater than 10% of the tolerance of the measured part and less than 20%, then this system is acceptable.

3. If the GR&r is greater than 20% of the tolerance of the measured part and less than 30%, the acceptance is based on the importance of the measurement system and the commercial cost of improvement.

4. If the gr&r is greater than 30% of the tolerance of the measured part, then this measurement system is unacceptable and needs to be improved.

Evaluating repeatability and reproducibility is a common method for MSA. MSA measurement system analysis is the analysis of the resolution and error of the measurement system using mathematical statistics and graphing methods to evaluate whether the resolution and error of the measurement system are suitable for the parameters being measured, and to determine the main components of the measurement system error.

The repeatability and reproducibility of the measured systematic error is determined by the gr&r study. The measurement system error is composed of accuracy, stability, repeatability, and reproducibility, in which repeatability and reproducibility are referred to as gr&r, and its purpose is to verify whether the measuring tool is reliable and easy to use with the help of measuring data.

Formula: GRR = standard deviation of the quantity multiplied by the percentage of the tolerance of the product specification. When the GRR value is less than 10%, it is grade A, and the measured value of Shenhe rock is very reliable.

When the GRR is greater than 10% and less than 25%, it is grade B, and the measured value can be accepted. When the GRR is greater than 25%, it is C, and the measured value should not be accepted.

Explanation: GRR is the abbreviation of Gauge Repeatability and Reproducibility, which means the repeatability and reproducibility of the measurement system.

GRR stands for "Gauge Repeatability and Reproducibility", which means "Repeatability and Reproducibility" of measurement.

GRR refers to the reproducibility and reproducibility of the measurement as reproducibility, and the following conditions should be met when obtaining the data: the same person, the same zero conditions, the same product, the same location, the same environmental conditions, and the data should be obtained in a short time: the purpose of reproducibility is only to know the variability of the equipment.

Reproducibility wants to know the variation under different conditions, so the following conditions should be met when obtaining data: different people, different zeroing conditions, different locations, different environments, and the data should be obtained over a longer period of time.

What is the purpose of GRR?

If we take a sample of the outer diameter of the omen of 100 round rods, we can get 100 sets of data, which form an allocation, but if we dig deeper, will the distribution of these data be like this forever? Not necessarily, because if the same sample is given to the same person and measured again the next day, it cannot be exactly the same as the original allocation. In the same way, if the same set of samples is given to another person to be measured with the same gauge, of course another assignment will be formed.

With this understanding, we understand that the original standard deviation of the data actually includes the measurement error of the standard deviation of the true value of the product, the measurement error and other random errors, and the relationship is as follows:

The purpose of GRR is to reduce the measurement error and make the measured value as close as possible (the standard deviation of the true value).

The main difference between Gundam RG, MG, and HG is that it is understandable that the dust is different from the height, and the HG is the shortest, which is 1:144, and then the RG is basically as tall as the HG, but the various details are better than the HG's, and of course it is more expensive than the HG's

And then MG's has the difference between the root brigade and the first book.,It's up to 1:100.,All kinds of details are better than RG.,Finally, there's a bigger one.,It's the PG version.,He's 1:60.,But because the volume is much larger than MG's Zheng Chan.,So it's basically a scene.。

The so-called RG, MG, and HG are the names of the classes of Gundam assembled models produced by Bandai, and the different levels of models are very different in scale and structure. mg:Master The ratio is 1:

100, there are more details, there is a skeleton, and some works have one-piece five-finger hands-on, which is the main high-level model of Bandai.

RG: Realistic Class The scale is 1:144, rich in detail, with a one-piece skeleton, there are hands-on, and the model is small and exquisite, the so-called real class is because its first model, the RX-78-2, is based on the 1:1 of Shizuoka Park

1. The model is created for the image. hg:Advanced The ratio is 1:

144, no skeleton, average details (there are some details that are super good, but less), is the main force of the mid-level model.

GR is the abbreviation of ** relationship. The relationship between enterprises refers to the leading and enterprise-oriented, using various information dissemination channels and means to conduct two-way information exchange with the company, so as to obtain the trust, support and cooperation of the enterprise, so as to establish a good external political environment for the enterprise and promote the survival and development of the enterprise.

In the enterprise relationship, the enterprise is the subject, and the public is the object, that is, the object of the enterprise relationship.

In the enterprise relationship, the enterprise is the subject, and the public is the object, that is, the object of the enterprise relationship.

The public is a large and complex architecture, which can be divided into three levels from the perspective of public relations: first, the state and the interests of the organization touch all levels of the locality; The second is the functional departments of the organization, through which the enterprise deals with the organization and accepts the management and constraints of the organization; The third is the staff in the organization, in the process of interacting with the company, the enterprise needs to contact the assistant and secretary of the administrative department, and other staff of the functional department.

In order to safeguard the interests of the whole country, and even the global interests, enterprises must consciously obey the best management. Even if this law, decree, policy, regulation, etc. causes the enterprise to suffer economic losses, if there is no room for turnover, the enterprise must also fulfill.

MSA measurement system analysis is the analysis of the resolution and error of the measurement system using mathematical statistics and graphing methods to evaluate whether the resolution and error of the measurement system are appropriate for the parameters to be measured, and to determine the main components of the measurement system error, while the repeatability and reproducibility of the measurement system error are determined by the GR&r study. The measurement system error is composed of accuracy, stability, repeatability, and reproducibility, in which repeatability and reproducibility are referred to as gr&r, and its purpose is to verify whether the measuring tool is reliable and easy to use with the help of measuring data, and the measurement error of the measuring tool can also be calculated; 1.Repeatability :

The sum of variations when the same feature of the same part is measured multiple times by the same person. Note: The experimental data must meet the following criteria:

The same person, the same product, the same environment, the same field chain, the same instrument, and in a short period of time.

2.Reproducibility: The sum of variation in the mean value of the measurement when the same feature of the same part is measured by different people using the same gage.

Note: The experimental data must meet the following conditions: different people with the same product, the same environment, the same location, the same instrument, and a long period of time.