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Inductive electrode three-dimensional electric-field sensor

A technology of sensing electrodes and three-dimensional electric field, applied in the field of sensors, can solve the problems such as the direction of electric field strength cannot be guaranteed to be consistent, errors, etc.

Active Publication Date: 2009-04-01
INST OF ELECTRONICS CHINESE ACAD OF SCI
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Problems solved by technology

The measurement direction of the current electric field sensor is limited to one-dimensional or two-dimensional directions, but since the detection direction cannot be guaranteed to be consistent with the direction of the electric field strength, it can only detect the magnitude of a certain direction or two direction components of the three-dimensional vector of the electric field strength. It is not completely consistent with the actual electric field intensity vector, which may cause large errors

Method used

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  • Inductive electrode three-dimensional electric-field sensor
  • Inductive electrode three-dimensional electric-field sensor
  • Inductive electrode three-dimensional electric-field sensor

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Embodiment Construction

[0017] Induction electrode type three-dimensional electric field sensor of the present invention sees figure 2 , image 3 , Figure 4 shown. The induction electrode type three-dimensional electric field sensor of the present invention has a hollow cylindrical housing 9, and a hollow cylindrical end cap 11a, 11b is respectively connected to the two ends of the housing 9, and the end caps 11a, 11b have the same shape and size as the housing 9. It is stepped. On the two ends of the casing 9, the top surface of the upper end cover 11a, and the bottom surface of the lower end cover 11b, there is a hole respectively located on the common central axis, and a main shaft 10 is arranged through these four holes, and the main shaft 10 is in dynamic contact with these four holes. The ends protrude equidistantly from the end caps 11a, 11b.

[0018] The lower end cover 11b is fixedly arranged on the lower end surface of the housing 9. In the chamber of the lower end cover 11b, a drivin...

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Abstract

The invention is a inductive electrode-type three-dimensional electric field sensor , it includes the two sensor rotators, the electric field inductive electrode in axial direction Z, the electric field inductive electrode in radial direction X and the inductive electrode in radial direction Y, the inductive electrode in three direction are all motionless element. Turning high and low two sensor rotators under the effect of the same driving element, making the inductive electrode in axial and radial together three direction doing alternative shielding action, to export induction current, measuring the three-dimensional electric field.

Description

technical field [0001] The present invention relates to sensors, in particular to three-dimensional electric field sensors. Background technique [0002] The detection of electric field is not only of great significance in aerospace activities, but also for ultra-clean laboratories, oil refineries, oil storage stations, explosive factories, wallpaper factories, mining, forest fire prevention and other grounds that are prone to static electricity and are susceptible to static electricity and lightning hazards. The place also has a wide range of applications. The measurement direction of the current electric field sensor is limited to one-dimensional or two-dimensional directions, but since the detection direction cannot be guaranteed to be consistent with the direction of the electric field strength, it can only detect the magnitude of a certain direction or two direction components of the three-dimensional vector of the electric field strength. It is not completely consiste...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R29/12
Inventor 白强张星郑凤杰夏善红
Owner INST OF ELECTRONICS CHINESE ACAD OF SCI
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