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Measurement device equipped with reed switch

A technology of measuring device and reed switch, which is applied in the direction of measuring device, indication of measured value, conversion of sensor output, etc., can solve problems such as obstruction of reed switch and holding device, narrowing of measuring range width, etc.

Active Publication Date: 2011-05-11
WLKA ALEXANDER WIEGAND SE & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If such high-current reed switches are used in the manner described in US Patent No. US 3 683 135, then the problem arises that the reed switch and the holding device interfere with each other or the width of the adjustable measuring range becomes smaller

Method used

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  • Measurement device equipped with reed switch
  • Measurement device equipped with reed switch
  • Measurement device equipped with reed switch

Examples

Experimental program
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Embodiment Construction

[0026] figure 1 The exploded view shows a preferred embodiment of the measuring device according to the invention and also shows the measuring device housing 1 . The main body 11 of the measuring device housing 1 has a pot shape, and a cable box or cable distribution box 12 is fixedly mounted on one side of the main body 11 , wherein the main cable bundle 13 is led out from the cable distribution box 12 . Also shown is a spring carrier 3 serving as a tubular spring (not shown) of the measuring element, which is arranged in the cylindrical body 11 of the measuring device housing 1 in the assembled state. The spring carrier 3 has the process connection line on its underside and the pointer mechanism 2 on its upper side. The connector 21 of the pointer mechanism 2 is directly connected to the free end of the measuring element (not shown) in the assembled state, and the pointer 8 of the pointer mechanism 2 displays the measured value on the digital disk 6 . Furthermore, a retain...

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PUM

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Abstract

The invention provides a measurement device for measuring and recording physicalistic values, which comprises a measuring element for measuring values, a pointer mechanism rotating a pointer with respect to the motion of the measuring element. The pointer rotates around a pointer rotation axis in a pointer plane. The pointer is equipped with switching magnets, a first and a second carrier components. The first and the second carrier components are adjusted around the axis in a rotary manner. A plane parallel to the pointer plane lies in the rotation axis. The carrier components are provided with two bistable reed switches, which are actuated by switching magnets. A longitudinal axis of one of the reed switches does not run through the pointer rotation axis.

Description

technical field [0001] The present invention relates to a measuring device for detecting and evaluating physical values, such as pressure, and more particularly to a measuring device having at least one bistable reed switch which is rotatable about the axis of rotation of the pointer, adjustable, and powered. Background technique [0002] A reed switch basically consists of two contact reeds of permanent magnetic material, which are gas-tight fused into a glass tube or a similar component under an inert atmosphere. The contact tongues overlap inside the glass tube and form gaps in their contact area. The two contact tongues are usually coated with a contact material in the contact region, wherein the contact tongues attract when a sufficiently strong magnetic field approaches, thereby closing the contact. The main advantages of reed switches are favorable manufacturing costs, no need for power supply, use in explosive atmospheres, contactless operation and hundreds of milli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D13/00G01D13/26
CPCG01D5/2525G01D13/26
Inventor 卡斯滕·莫特尔
Owner WLKA ALEXANDER WIEGAND SE & CO KG