CN2411468Y

CN2411468Y - Multi-cathode element hollow cathode lamp

Info

Publication number: CN2411468Y
Application number: CN 99258162
Authority: CN
Inventors: 吴廷照; 吴安林
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-12-29
Filing date: 1999-12-29
Publication date: 2000-12-20
Anticipated expiration: 2009-12-29

Abstract

The utility model relates to an element hollow cathode lamp for doing atomic spectrum analysis. A multi-cathode element hollow cathode lamp is provided with a glass casing on a base. A cathode, an anode, and mica distance pieces are arranged in the glass casing. The base is provided with pins which are respectively connected with each pole. Inert gas is filled in the glass casing. The multi-cathode element hollow cathode lamp is characterized in that the multi-cathode element hollow cathode lamp is provided with a plurality of cathodes which are evenly distributed on a circumference which uses an anode as the center and a proper length as the radius. The multi-cathode element hollow cathode lamp has the advantages that the number of the element hollow cathode lamps matched with a main machine can be reduced, and the operation for replacing lamps can also be reduced in use.

Description

Many negative electrodes element hollow cathode lamp

The utility model relates to the element hollow cathode lamp that a kind of atomic spectroscopic analysis is used.

The element hollow cathode lamp that existing atomic absorption spectrophotometer (AAS) and atomic fluorescence spectrophotometer are used, be in a lamp, to have only a negative electrode, can only be used to measure a kind of element, if in the time of need measuring multiple different element simultaneously, must change the element hollow cathode lamp of the element of surveying, the time-consuming efficient of taking a lot of work is very low, and measuring unit need lay in the cathode modulation of a large amount of different elements, needs for measuring.

The purpose of this utility model is to provide a kind of many negative electrodes element hollow cathode lamp of measuring multiple element.

Above-mentioned purpose of the present utility model is realized by following technical scheme.

A kind of many negative electrodes element hollow cathode lamp, be on a base, to be provided with a glass bulb, dress negative electrode, anode and mica partition in the glass bulb, base is provided with respectively and each pin that extremely links to each other, filling with inert gas in the glass bulb, it is characterized in that: have a plurality of negative electrodes, it is that the suitable length in center is on the circumference of radius that these a plurality of negative electrodes are distributed in the anode.

Except that above-mentioned essential features, in implementation process, also can replenish following technology contents:

These a plurality of negative electrodes include conventional cathode and high performance cathodes, and are provided with an auxilliary negative electrode;

These a plurality of negative electrodes are to be conventional cathode.

Advantage of the present utility model is: the quantity that can reduce the host configuration element hollow cathode lamp; Also can reduce the operation of changing lamp in use.

The utility model is described in further detail below in conjunction with drawings and Examples:

Description of drawings:

Fig. 1 is a front view of the present utility model;

Fig. 2 is a vertical view of the present utility model.

As shown in Figure 1, 2, provided by the utility model is a kind of many negative electrodes element hollow cathode lamp, be on a base 1, to be provided with a glass bulb 2,2 adorn a plurality of negative electrodes 3, an anode 4 and mica partition 5 in the glass bulb, base 1 is provided with respectively and each pin that extremely links to each other 6,2 filling with inert gas in the glass bulb: these a plurality of negative electrodes be distributed in the anode be the center suitably length be on the circumference of radius.

Can include conventional cathode and high performance cathodes in these a plurality of negative electrodes 3, and be provided with an auxilliary negative electrode 7.To adapt to the needs of multiple different elements are containeds.

These a plurality of negative electrodes can be conventional cathode entirely also.

During measurement, when changing the mensuration element, the position that only need manually or automatically rotate lamp bracket change lamp forwards in the circuit negative electrode that needs the survey element to and gets final product.Also can in circuit, establish a switch, when changing the mensuration element, only need the rotation switch that the negative electrode that needs the survey element is forwarded in the circuit and get final product.

Claims

1, a kind of many negative electrodes element hollow cathode lamp, be on a base, to be provided with a glass bulb, dress negative electrode, anode and mica partition in the glass bulb, base is provided with respectively and each pin that extremely links to each other, filling with inert gas in the glass bulb, it is characterized in that: have a plurality of negative electrodes, it is that the suitable length in center is on the circumference of radius that these a plurality of negative electrodes are distributed in the anode.

2, as the said many negative electrodes element hollow cathode lamp of claim 1, it is characterized in that: these a plurality of negative electrodes include conventional cathode and high performance cathodes, and are provided with an auxilliary negative electrode.

3, as the said many negative electrodes element hollow cathode lamp of claim 1, it is characterized in that: these a plurality of negative electrodes are to be conventional cathode.