German term (edited): Referenz-ini (Referenz-Initiator)

Referenz-INI = Referenzinitiator, diese Frage wurde in der Diskussion schon gelöst. Bleibt noch Referenz-INI-Geber. Für Geber gibt es mehrere Übersetzungsmöglichkeiten, z.B. transmitter, transducer, encoder, pick-up, sensor, ...
https://dict.leo.org/englisch-deutsch/geber

Hier dürfte der Referenz-INI mit Referenz Geber übereinstimmen, wie in nachfolgender Diskussion:

Betreff Referenzgeber [Tech.]

Hallo, kennt jemand eine Übersetzung zu Referenzgeber? Im Zusammenhang: Referenzgeber und aktive Messwertgeber...

Übersetzung reference transducer
z.B. Bezugslänge = refernce length etc.

Kommentar
Ich denke dieser Geber ist als Bezugspunkt zu verstehen ist, daher würde ich es wie o.a. übersetzen
https://dict.leo.org/forum/viewUnsolvedquery.php?idThread=60...



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Note added at 11 Stunden (2018-05-29 07:30:03 GMT)
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"Referenzinitiatorgeber" is makes no sense. A "Referenzinitiator” initiates or gives the reference. A "Referenzgeber" gives the reference, too. "Initiator" and "Geber" can be translated both by "transducer" or similar, correspondingly. The Problem is due to errors on the editor’s side.

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Note added at 1 Tag 11 Stunden (2018-05-30 06:55:36 GMT)
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Transducers can convert all possible physical values and compared to reference transducers. Some examples are shown below, including travel and displacement:

The Rotary Rudder Reference Transducer is a sensor included with many Raymarine SmartPilot core packs, and with the ST60 series rudder system. This device accurately measures the angle of the boat's rudder(s) or outdrives, and sends that information back to the autopilot course computer or rudder angle display. Additionally, many Raymarine multifunction displays and instrument repeaters have the ability to read and display rudder angle information over the SeaTalk navigation network.
http://www.raymarine.de/knowledgebase/index.cfm?view=4179

If you want to calibrate any type of testing machine, either for quality purposes or to obtain an official calibration certificate, then choose a standard reference transducer. There are two methods which can be used to measure a force with accuracy: ‘dead-weight machines’ or testing machines equipped with a transfer force transducer. The first solution is quite expensive and difficult to operate. The second one is cost-effective and increases your flexibility.
http://www.sensy.com/EN/standard-reference-transducers

Standard reference force transducers specially designed according to the ISO 376 standard (Class "1", "05" and "00").
o Wide range of capacities
o Tension and compression
:
http://www.sensy.com/EN/standard-reference-transducers/stand...

With a reference transducer the actual sonic velocity can be measured. This requires another transducer to be installed in the module, where there may be only limited space or the module dimensions may not be suitable for the reference transducer. A double transducer described in this study eliminates the need for a separate reference transducer because in the double transducer the reference measurement is included in the design of the transducer holder. Two sensors in the same holder require less space. Other advantage is that the double transducer can be placed near the measurement target and hence the local sonic velocity can be determined.

A Double Transducer for High Precision Ultrasonic Time-Domain... (PDF Download Available). Available from: https://www.researchgate.net/publication/280030500_A_Double_... [accessed May 30 2018].
https://www.researchgate.net/publication/280030500_A_Double_...

Many measurement devices exist for vibrational analysis. Strain gauges and other equipment capable of transducing mechanical displacement into an electrical signal is often used in structural or non-destructive testing. However, there are many situations where it is impractical to use hardware that requires mechanical contact and/or traction with the surface or interest – notably, when attempting to characterise the transducers themselves.
:
This means transducers may be easily compared to one another, or benchmarked against a ‘knowngood’ reference transducer.
https://www.google.de/url?sa=t&rct=j&q=&esrc=s&source=web&cd...

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Note added at 1 Tag 11 Stunden (2018-05-30 07:08:41 GMT)
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Induktiver Näherungsschalter FZIN (Referenzinitiator) mit Halter und Schrauben
Proximity switch FZIN with support and screws
Detecteur de proximité FZIN avec fixation, visserie compris
https://www.google.de/url?sa=t&rct=j&q=&esrc=s&source=web&cd...
(page 29)

As seen below, "Referenzgeber" is also translated by "reference transducer":

Rotorlagegeber für eine elektronisch kommutierte elektrische Maschine mit einem Referenzgeber
https://patents.google.com/patent/DE102013203388B3
Rotor position encoder for an electronically commutated electrical machine having a reference sensor
https://patents.google.com/patent/DE102013203388B3/en

Further examples can easily found in the internet.

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Note added at 1 Tag 22 Stunden (2018-05-30 18:02:06 GMT)
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Acc. to the broader context (unknown to us), the term "reference sensor" could also be considered, as ebobilov suggested, esp. if the physical value is directly converted into an electrical signal without any transducer. See my entry above "transducer or similar".