Positional Switch definition of Positional Switch in the Free Online Encyclopedia.

Positional Switch

a device for closing and opening electric circuits in systems of automatic control by electric drives. A positional switch is actuated by the motion of the mechanism itself. At various points in its travel, the mechanism opens or closes the appropriate contacts of the switch. The operation of the contacts causes signals to actuate the control devices of an automated electric drive.

The simplest and most widely used example of a positional switch in a control circuit is a switch that prevents a mechanism from traveling beyond its normal end position. In this case, the positional switch is called a limit, or end, switch. Positional switches are classified according to their principle of operation as contact (electromechanical) switches and contactless switches, such as induction and capacitance switches.

REFERENCES

Komar, M. A. Osnovy elektroprivoda i apparaty upravleniia, 3rd ed. Moscow, 1968.
Ivenskii, Iu. N. Beskontaktnye putevye perekliuchateli v promyshlennoi avtomatike. Moscow, 1971.

G. G. NESTEROV

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No references found	There are seven changes from Wales' autumn Test against New Zealand in November, plus a positional switch as Hook moves from centre to full-back. Hook claims full-back spot from Byrne by Birmingham Mail (England) There are seven changes from Wales' autumn Test series finale against New Zealand in November, plus a positional switch as Hook moves from centre to full-back. Hook a place at full-back by Huddersfield Daily Examiner (Huddersfield, England) Ireland coach Declan Kidney unveiled on Tuesday a starting side showing 11 changes, including a positional switch, from the one that lost 23-21 to world champions South Africa last weekend. Toner to make Ireland debut in Samoa Test by Staff Reporter / AFP Global Edition	position finding position firing position fixing position indicator position line Position Micrometer position operator position pulse position report position representation position sensor position telemetering position transducer position vector Position, Phonological position-analog unit position-contouring system positional astronomy positional cloning Positional Games positional isomer positional notation positional parameter positional representation positional servomechanism Positional Switch Positional System positional-error constant positioned weld positioning positioning action positioning band positioning time Positive positive acceleration positive afterimage positive allosteric control positive angle positive area positive axis positive bias positive birefringence positive charge positive click adjustment positive clutch positive column positive correlation positive crystal positive cutoff positive definite Positive Definite Quadratic form	positional behavior positional cloning positional data graphic positional defense Positional Feedback Stimulation Training Positional Games Positional isomer Positional isomer Positional isomerism positional lighting positional notation positional notation positional notation Positional number system Positional number system Positional numeral system Positional numeral system positional nystagmus positional nystagmus positional nystagmus Positional Oligomer Importance Matrix Positional Orthostatic Tachycardia positional parameter Positional Processing System positional release variations positional representation positional representation system Positional Scanning Combinatorial Peptide Libraries positional servomechanism positional sound Positional Switch Positional system Positional system positional treatment Positional vertigo Positional vertigo Positional vertigo Positional zero Positional zero positional-error constant positionally positionally positionally positionally positionally positionally positioned positioned positioned positioned positioned positioned positioned weld positioner positioner positioner positioner positioner positioner positioners positioners

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There are seven changes from Wales' autumn Test against New Zealand in November, plus a positional switch as Hook moves from centre to full-back.

Hook claims full-back spot from Byrne by Birmingham Mail (England)

There are seven changes from Wales' autumn Test series finale against New Zealand in November, plus a positional switch as Hook moves from centre to full-back.

Hook a place at full-back by Huddersfield Daily Examiner (Huddersfield, England)

Ireland coach Declan Kidney unveiled on Tuesday a starting side showing 11 changes, including a positional switch, from the one that lost 23-21 to world champions South Africa last weekend.

Toner to make Ireland debut in Samoa Test by Staff Reporter / AFP Global Edition

position representation

position sensor