DIN 18723 PDF

Find the most up-to-date version of DIN at Engineering DIN Field procedure for precision testing of surveying instruments; general information. DIN Field procedure for precision testing of surveying instruments; gyroscopes. standard by Deutsches Institut Fur Normung E.V.

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The wisdom that enables 81723 to recognize as an undesirable old acquaintance the folly that we have already embraced. A Worldwide Repair Service – Visit us at: Please note, that a DIN is specific to one instrument.

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ADJUSTMENT COMPUTATIONS

I guess what I was getting at was that you can “test” to see how close you can get to a specified DIN with the above outlined process, however given the real world conditions of operating an instrument will rely on how good your transit man is at setting up and running the gun. Slowly move the head back and forth, about an inch from the eyepiece, while watching the relationship of the object to the cross hairs.

Topcon X may have a slightly different DIN than the same model sitting next to it in the office. Second of all, while it may well be that instruments with dual-axis compensators give angles measured on only one face that are free of collimation errors, it is an open question whether the graduation of the circle places strict limits on the improvement in the s.

Surveying submitted 1 year ago by CNarc. Poorly adjusted instrument Poor methods and procedures Instrument set up Not checking work Human error.

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By continuing to browse the site you are agreeing to our use of cookies. Work of the hardest kind. Error is always present in all measurements. Recheck the instrument level Xin the instrument has moved, check the angle just measured. Or in German for that matter at a reasonable price? I mean that the DIN number you come up with for that instrument is specific to that one instrument. Yes, the most fundamental and easy way to upgrade angular accuracy is just to use well-designed targets that are up to the task and use methods that actually center them over the ground marks they are nominally occupying.

August 3, 7: August 3, 5: In other words, “your mileage may vary”. This is why a range pole makes for a poor control point measuring tool. All these 2″ were taken during lab conditions where everything is 1873. Submit a new text post. Registration Forgot your password?

Accuracy relates to the quality of the result obtained when compared to the standard. Log in or sign up in seconds. As well as not keeping your prism rods and tribrach in top adjusted shape. What that meant was that you could measure the same direction times and each direction as read by the instrument would have the identical error generated by the circle reading system.

Welcome to Reddit, the front page of the internet. In the real world there will be many other sources of error in the operation.

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DIN and in English? : Surveying

These are the steps I did on a summary for a lecture. This is equivalent to a marksman realigning the sights after the shots. I understand compensators in levels, but not dual-axis total station compensators.

Error tends to be random Random error- If the bubble of a theodolite were to remain off center by the same amount during the entire angle-measuring process at a station, the resulting error would be 18732.

Repetition Method Suppose an angle is read six times using the repetition method. That was my point of my earlier replies. This type of error will appear as a random in the adjustment of a network involving many stations. Am I correct in thinking that Trimble have determined, through the DIN standard, experimentation, repeated observations etc, that the standard deviation of angle measurements is 2″ for this instrument- is this correct?

How much is determined by several factors. Yes, I find it difficult to believe that the other instrument manufacturers aren’t following some version of the Leica method of using the exact same circle in a line of instruments with a range of specified accuracies and then degrading the performance of the lower spec instruments by software.

The document is titled: True Location Dependent on quality of instrument State of adjustment of optical plummet Skill of observer Can be compensating Error is maximized when the individual setup is on the angle bisector. I ain’t ever got no where, but I got there by hard work.