A sampler that contains a flow path in which turbulence is induced in the main stream by abruptly changing the direction of the fluid.


Related Terms

POPPET VALVE

A cam-operated or spring-loaded reciprocating-engine mushroomtype valve used for control of admission and exhaust of working fluid; the direction of movement is at right angles to the plane of its seat.

POINT OF CONTRAFLEXURE

A point at which the direction of bending changes. Also known as point of inflection.

PLUNGE

To set the horizontal cross hair of a theodolite in the direction of a grade when establishing a grade between two points of known level.

PIPEWORK SEE PIPING. PIPE WRENCH

A tool designed to grip and turn a pipe or rod about its axis in one direction only. piping

PILOT BALLOON

A small balloon whose ascent is followed by a theodolite in order to obtain data for the computation of the speed and direction of winds in the upper air.

PAWL

The driving link or holding link of a ratchet mechanism, permits motion in one direction only.

PANORAMIC RADAR

Nonscanning radar which transmits signals over a wide beam in the direction of interest.

ORIENTATION VECTOR

A vector whose direction indicates the orientation of a robot gripper.

ORIENTATION

Establishment of the correct relationship in direction with reference to the points of the compass.

ONE-SIDED ACCEPTANCE SAMPLING TEST

A test against a single specification only, in which permissible values in one direction are not limited.

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