investigate the GIS calibration, as questions had been raised regarding its pointing, a clear degradation in the performance of the GIS 1 detector, and the quality of the latest calibration of 2003, which was based on the known characteristics of Microchannel Plate (MCP) aging and observed line widths and intensities in the major spectral lines.Get price

Calibrating Survey Instruments | GIM International

Jul 07, 2007 · The calibration curve obtained can be modelled to considerably improve field measurements. At the ESRF, the enlarged uncertainty for these calibrations is 0.17mm for a 2-50m EDM calibration with instrument resolution of 0.1mm, and 0.05mm for a 0.3-50m laser-tracker distance meter calibration. AcknowledgementsGet price

Good practice guide for the calibration of EDMs on baselines

The specific objective of calibration measurements is typically to estimate the following calibration parameters: - Scale factor - Additional constant For this task, a quality assessment of the used reference baseline is required and specific procedures for carrying out the observations, the data processing and their analysis are given here.Get price

GIS Ag Maps - About Post-Calibrating Yield Maps

Calibration can be a challenge (Cowan, 2000, pg. 5) and getting loads weighed often can cause logistical problems (Casady et al., 1998, pg. 3) and can be very time-consuming; as a result, there are many yield monitor datasets that have not been calibrated properly.Get price

How to Check Your GIS Data - GIS Lounge

Oct 21, 2013 · Noam Rozenfeld, a GIS project manager, takes a look at the importance of checking GIS data for errors and reviews the pros and cons of EsriArcGIS Data Reviewer.Get price

Analysis Application of GIS Based Air Quality Monitoring

Further it presents a schematic framework for the GIS based evaluation of air pollution situation in surrounding regions of industrial sites and the factors that should be taken in consideration for developing the GIS based system based on the proposed framework. Keywords: Air quality, Air quality indices, GIS, Geostatistical Analysis, Health riskGet price

Quality control—Help | Documentation

Data quality is regulated by a quality assurance (QA) program through quality control (QC) processes. QA is an all-encompassing management approach that combines technical aspects of quality, qualitative methods, and human resources in a system designed to meet the customerexpectations.Get price


The terms ‘quality control’ and ‘quality assurance’ are often used incorrectly. The definitions of QC and QA in Box 8.1 will be used for the purposes of good practice guidance. BOX 8.1 DEFINITION OF QA/QC Quality Control (QC) is a system of routine technical activities, to measure and control the quality of the inventory as it is beingGet price

Service and Calibration Center - Global GIS

This wealth of skills and knowledge allow us to undertake basic calibrations and repairs on all manner of manufacturer’s equipment. Our promise to you is that we will not undertake any work that we are not competent or authorized to undertake. Finally all service done by technicians are supervised by GLOBAL GIS Technical Manager ( B.Sc Surveyor).Get price

FCR – The Fundamentals of Quality Calibration

What Is QA Calibration?Methods For CalibrationMeasuring SuccessBonus Tip: Talk About Customer SatisfactionOne essential ingredient to a great QA process is regular calibration sessions. Simply defined: QA Calibration is where everyone responsible for doing QA in the organization comes together to rate the same interaction(s), ensuring that they are aligned and upholding the same expectations. In the case of an outsourcer, like FCR, there’s an added layer to this where we not only need to be calibrated internally, but we need to be calibrated with our clients as well. The first step to calibration is making sure that we have a clear set of expectations so that everyone who completes a QA review knows what’s expected for each interaction. These expectations are best outlined in a quality definitions guide. This guide is a living, breathing document that ideally should align with your customer service vision and ultimately help your customer service department achieve that vision one interaction at a time. Out of that definitions guide should come your criteria or form by which you measure...Get price

Calibration - GIS Wiki | The GIS Encyclopedia

Calibration is the validation of specific measurement techniques and equipment. At the simplest level, calibration is a comparison between measurements-one of known magnitude or correctness made or set with one device and another measurement made in as similar a way as possible with a second device.Get price

Spatial Data Quality: An Introduction - GIS Lounge

Jan 11, 2008 · Data quality is a pillar in any GIS implementation and application as reliable data are indispensable to allow the user obtaining meaningful results. Spatial Data quality can be categorized into Data completeness, Data Precision, Data accuracy and Data Consistency.Get price

Conducting Effective Quality Calibrations

Jun 22, 2017 · These five steps can help any quality program get started with a formal calibration process. 1. Select the calibration team: The Quality Assurance (QA) team is an obvious choice for calibration, but it’s a good idea to include supervisors and leadership in the calibration. One or two senior agents and trainers can also be beneficial toGet price

Calibration - Wikipedia

BIPM Definition. The formal definition of calibration by the International Bureau of Weights and Measures (BIPM) is the following: "Operation that, under specified conditions, in a first step, establishes a relation between the quantity values with measurement uncertainties provided by measurement standards and corresponding indications with associated measurement uncertainties (of theGet price

Measuring partial discharge in GIS | Think Grid

The frequency range can be chosen to measure in a band with low external noise. The suppression of external noises, for example in the GSM mobile phone range, can be achieved in the following way: the measurements made by the sensors fitted in the GIS are compared with the results of those installed in other compartments or those of an additional external antenna.Get price

Map of France - GIS Geography - Open Source GIS - GIS

Oct 05, 2020 · A transportation map of France France is located in western Europe next to the English Channel. It borders several European countries including Belgium, Germany, Luxembourg, Switzerland, Italy and Spain.Get price

Home - PTW Freiburg GmbH

With more than 12,000 calibrations per year, the PTW Calibration Lab is one of the largest dosimetry calibration labs in the field of ionizing radiation worldwide. As an accredited dosimetry calibration laboratory and member of the IAEA/WHO SSDL Network, the PTW Calibration Lab helps you maintain the highest level of accuracy and reliabilityGet price


Relevant aspects include calibration, use of blanks, performance characteristics of the procedure, and reporting of results. An aspect of utmost importance of quality management, the quality control by inspection of the results, is discussed separately in Chapter 8.Get price

Calibration Test Sites - CalValPortal

The scope of the project is to select, identify and characterise reference test sites that will be used for the calibration and characterisation of different sensor types. The study is part of the ESA strategy for ensuring the quality (calibration, validation and operational quality) of data developed for current and future missions within theGet price

Processing report—Drone2Map for ArcGIS Help | ArcGIS

Figure 5 of the Quality Report shows the areas with very weak matches. A low number of matches is very often related to low overlap between the images. What to do: See the Dataset Quality Check section to improve the results. There might be needed to restart the calibration a few times with different settings (camera model, Manual Tie PointsGet price

SGS | When You Need To Be Sure

2020 saw a boom in bike sales as e-bikes became the commutertransportation of choice during the pandemic. Traditional business and the digital world are increasingly intertwined. Discover how we can help you manage and mitigate cybersecurity risks. The final installment of our video seriesGet price

Lesson 7 - Understanding GIS Error, Accuracy, and Precision

Other errors in quantitative accuracy may occur from faulty instrument calibration used to measure specific features such as altitude, soil or water pH, or atmospheric gases. Mistakes made in the field or laboratory may be undetectable in the GIS project unless the user has conflicting or corroborating information available. 4.2.3.Get price

3 specific features of GIS software testing you need to be

Testing Vast Amounts of Diverse DataTesting with Real Or Pre-Modified DataTesting The Variety of GIS SoftwareWhat Makes Proper GIS App Testing?GIS applications allow visualizing data through mapping, which means there are both data itself and a map that presents it. In other words, GIS databases store both spatial coordinates and attribute data such as roads, buildings, businesses, and other objects. This is probably the major peculiarity of GIS software testing: a QA engineer should be attentive to the accuracy of figures and the right object positioning alike. Regarding the spatial data accuracy, it’s crucial to debug all the controversies between the encoded location of the map items and their actual positioning. Moreover, certain GIS software may be compiled from multiple map sources, so there can be conflicts between them, too: a few overlapping layers is a typical example. Attribute data such as street names or any statistics to be displayed is another aspect requiring a testing engineer’s thorough consideration. If a GIS app contains erroneous attribute data, bugs might appear in its visualization—for instance, stre...Get price

Geographic Indications FAQ - French Food in the U.S.

May 07, 2015 · A geographical indication is a distinctive sign used to identify a product as originating in the territory of a particular country, region or locality where its quality, reputation or other characteristic is linked to its geographical origin. Q. How many types of GIs are there? A.Get price

Calibration - Quality Systems Toolbox

When your equipment fails calibration it is a non-conformance. All the measurements since the last calibration are now suspect. The effects will depend on how critical the measurement is, how badly out of tolerance the equipment is, and how long since the last calibration. It may require corrective action such as re-measurement, rework, productGet price

Accuracy and precision - GIS Wiki | The GIS Encyclopedia

Accuracy Versus Precision; The Target AnalogyQuantifying Accuracy and PrecisionAccuracy and Precision in Binary ClassificationAccuracy and Precision in Psychometrics and PsychophysicsAccuracy and Precision in Information SystemsSee AlsoReferencesExternal LinksAccuracy is the degree of veracity while precision is the degree of reproducibility.[citation needed]The analogy used here to explain the difference between accuracy and precision is the target comparison. In this analogy, repeated measurements are compared to arrows that are shot at a target. Accuracy describes the closeness of arrows to the bullseye at the target center. Arrows that strike closer to the bullseye are considered more accurate. The closer a systemmeasurements to the accepted value, the more accurate the system is considered to be. To continue the analogy, if a large number of arrows are shot, precision would be the size of the arrow cluster. (When only one arrow is shot, precision is the size of the cluster one wouldexpect if this were repeated many times under the same conditions.) When all arrows are grouped tightly together, the cluster is considered precise since they all struck close to the same spot, if not necessarily near the bullseye. The measurements are...Get price

GIS Data Quality Assessment - 1 Survey

Qualitative Assessment of the Impact of GIS Data Quality The questions below represent the first step of a two step process to quantify the effects of bad GIS data. It is expected that by quantifying the impact of bad data, utilities will be able to cost-justify data improvement projects.Get price

Trimble Inpho | Trimble Geospatial

Trimble Geospatial provides solutions that allow you to make your mark using high-quality, productive workflows and information exchange, driving value for a global and diverse customer base of surveyors, engineering, and GIS service companies, governments, utilities, and transportation authorities.Get price

Quality Control - Making a Difference in the Quality of Your

Measure, Measure, MeasureInvolve The FieldSpecifications and Process DocumentationThis is a reiteration of what I discussed last time, namely implement a consistent QA program. For all your processes that manipulate the data, particularly the manual ones, score the quality results whenever possible. Make sure that the feedback from your QA inspection gets back to everyone involved in the process. Keep score by error type, so you know where to focus most and provide specific error examples to the individuals on your team.Get price