Измерения с помощью датчиков, преобразователей, сенсоров
          Transducers, gauges, sensors -  Information portal  © 2011 - 2023                                                                                                       Use of material is possible by placing an active link
преобразование трансформатора
индуктивное преобразование
электромагнитный преобразователь
Home >> Magnetic field  >> Electromagnetic transducers
русский / english


Home

Temperature, thermoelectricity

Magnetic fields

Mechanical stress, strain

Force, pressure, displacement, flow

Humidity, gases

Photo effects, light

Ionizing radiation

Electricity, capacity, piezoelectricity

Physical properties of materials

Literature on transducers

News, exhibitions, conferences

About the project. Contacts






                                                                                                                                                              

Information about various converters and sensors of physical quantities, parameters of various physical processes is presented.
Electrophysical properties and effects in various electrical materials.
Theory, experimental results, practical application

Contacts: info@sensorse.com
Electromagnetic transducers
      Electromotive force (E.M.F.) is generated along an explorer, when he is crossed by the variable magnetic field. And, vice versa, when an explorer moves through the magnetic field, along him generated E.M.F. (fig. 3), determined from next correlation:

                                                                                                   E = - d(Nф)/dt,

where d(Nф)/dt is speed of change of coupling of streams .
Fig. 3. Electromagnetic transformation
Fig. 4. Inductive transformation
Fig. 5. Transformation of magnetic resistance, used in a differential transducer with an arcwise-changing output

      Inductive transformation is shown on a fig. 4, where the self-induction of spool changes in accordance with the change of measurand. The change of inductance can be carried out by motion of ferromagnetic mandrel into a spool or by bringing of external changing stream in a spool with an immobile mandrel.
Transformation of magnetic resistance is shown on a fig. 5, on which chainlet of resistance between two or more changes spools (or by separate parts of one or a few spools) depending on variations of measurand. When to the system of spools an alternating current is put, then, the change of measurand is transformed in the change of output tension.

Датчики, преобразователи. Sensors, transducers


CONVERTERS, GAUGES, SENSORS
Information, news, advertising