Campbell-scientific CS110 Overview Instrukcja Użytkownika Pobierz pdf

Introduction

Lightning poses a serious threat to both people and equipment in most areas of the world. Although humans

are equipped with fairly good lightning warning sensors (eyes and ears), data from electronic lightning hazard

warning devices have proven valuable in lightning hazard warning.

Electronic lightning warning devices can be grouped into two classes: lightning detectors and electric-field

monitors. Lightning detectors provide information about past lightning flashes, providing advanced warn-

ing of incoming storms. Yet lightning detectors provide no warning until a detectable lightning discharge has

occurred, which may be too late for storms developing overhead.

Electric field monitors provide information about the local atmospheric electric field from which the likelihood

of future lightning flashes can be inferred. Consequently, electric-field monitors can provide warning prior to

the first strike. While electric-field monitors provide warning of incoming storms, lightning detectors are gener-

ally considered superior in this regard because of greater detection range with distance to strike estimates avail-

able in some instruments. As a result, both lightning detectors and electric-field monitors are employed in high-

risk applications.

Atmospheric Electric Field

Electrical charges exert forces on each other; like charges repel and unlike charges attract. An electric force field,

referred to as an electric field, is said to exist around electrical charges. Analogous to a gravitational field g defin-

ing the force F acting on a mass m (g = F/m), the electric field defines the force F acting on a charge q (E = F/q).

CS110 Electric Field Meter Overview

Sealed Connectors

Case Lid

Recipricating Shutter

Stator

Ground Lug

WHEN MEASUREMENTS MATTER

W H E N M E A S U R E M E N T S M A T T E R

CAMPBELL SCIENTIFIC, INC.

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Podsumowanie treści

Strona 1 - Atmospheric Electric Field

IntroductionLightning poses a serious threat to both people and equipment in most areas of the world. Although humans are equipped with fairly good l

Strona 2

The electric field E is a vector quantity, having both a magnitude (field strength) and direction (direction of force exerted on a positive test charg

Strona 3 - Electric Field (Volt/meter)

The fair weather diurnal pattern is believed to be caused by variations in world-wide thunderstorm activity which affects a global electric circuit.Th

Strona 4

Unlike traditional rotating vane ﬁ eld mills, the CS110 uses a reciprocating shutter. A stepper motor opens and then closes the reciprocating shutter

Strona 5 - Sense electrode

The reciprocating motion of the CS110 electric-ﬁ eld meter is limited to approximately 5 Hz, which is adequate for lightning hazard warn-ing, where 1

Strona 6 - References

The CS110 interfaces to select Campbell Scientiﬁ c meteorological sensors. Wind speed, wind direction, air tem-perature, relative humidity, rainfall,

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Campbell-scientific CS110 Overview Instrukcja Użytkownika

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