Pulse voltage generating circuit, discharge circuit, and emission analyzer using the circuits
A technology for generating circuits and pulse voltages, applied in the field of luminescence analysis devices, to achieve the effects of a steep rise in discharge current, improved analysis performance, and improved energy transfer efficiency
Active Publication Date: 2014-09-17
SHIMADZU SEISAKUSHO CO LTD
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0015] Since the coupling coefficient k of the flyback transformer 1 used in the pulse voltage generating circuit is 0.7 to 0.8, as Figure 10 As shown, the energy transfer efficiency β when using the snubber circuit 22 is only 40-60%.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0035] Next, embodiments of the present invention will be described with reference to the drawings. In the following description of the drawings, the same or similar parts are denoted by the same or similar symbols. It should be noted that the drawings are schematic, and the plane size, time axis, etc. are different from the actual ones. Therefore, specific planar dimensions, time axes, and the like should be determined in consideration of the following description. In addition, it is needless to say that the drawings may include parts where mutual dimensional relationships and ratios are different. In addition, the embodiments shown below exemplify circuits and methods for realizing the technical idea of the present invention, and the technical idea of the present invention does not limit the arrangement of circuit elements and components to the following forms. The technical idea of the present invention can be modified variously within the technical scope described ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
Disclosed is a pulse voltage generating circuit which is provided with: a transformer (1) having a primary winding and a secondary winding; a snubber capacitor (21) connected in parallel to the primary winding; an excitation capacitor (3) which supplies the primary winding with an excitation current; a switching element (6) which is inserted into an excitation current path through which the excitation capacitor (3) supplies the primary winding with the excitation current; and a load capacitor (4) which is connected in parallel to the secondary winding. The relationships among the capacity of the snubber capacitor (21), the capacity of the load capacitor (4), the floating capacity of the secondary winding, the inductance of the primary winding, the excitation inductance of the transformer (1) and the winding ratio of the transformer (1) are adjusted such that the first peak value of the voltage between the both ends of the load capacitor (4) after the switching element (6) is turned off is higher than the second and the subsequent peak values.
Description
technical field [0001] The present invention relates to a pulse voltage generating circuit suitable for generating a spark discharge, a discharge circuit using the pulse voltage generating circuit, and a luminescence analyzer using the discharging circuit. Background technique [0002] In the emission analyzer, a sample (metal sample) is evaporated and gasified to generate plasma, and the excitation light of the plasma is spectroscopically spectroscopic, and the component analysis of the sample is performed by measuring the light intensity. In order to evaporate and vaporize the sample, it is necessary to have an electrode between the counter electrode and the sample electrode Figure 11 The pulse voltage generating circuit shown above applies a high voltage to cause a large current generated by spark discharge to flow between the counter electrode and the sample electrode. Atoms on the surface of the metal sample are evaporated by high-current discharge, and these atoms are...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H02M9/04G01N21/67G01N21/71
CPCG01N21/67H03K3/57
Inventor 土生俊也
Owner SHIMADZU SEISAKUSHO CO LTD