High-voltage electrical appliances are devices used in high-voltage lines to achieve closing, breaking, protection, control, regulation, and measurement. The general high-voltage electrical appliances include switching electrical appliances, measuring electrical appliances, and current limiting and limiting piezoelectric devices.
The internationally recognized boundary between high and low voltage electrical appliances is 1kV (1500V for DC). For high-voltage electrical appliances above 1kV, low-voltage electrical appliances of 1kV and below. Sometimes the transformer was included in the high-voltage electrical appliance. Xi'an High-voltage Electrical Apparatus Research Institute was established in 1958 on the basis of the planned central laboratory of Xi'an Switching Rectifier Factory. It was clearly established as a switch and electric porcelain in Xi'an. Capacitor, insulation and transformer factory carry out research and development, testing services, involving switches, transformers, protective appliances, measuring electrical appliances and other specialties, so named the Institute of High Voltage Electrical Appliances, the name has continued to this day.
In high-voltage electrical product samples, drawings, technical documents, factory inspection reports, type test reports, instructions for use and product brand names, various terminology are often used, which indicate the structural characteristics, technical performance and use environment of the products. Understanding and mastering these terms can bring a lot of convenience to the work. Now, the terminology commonly used in high-voltage electrical appliances is introduced.
Flat Field Holographic Concave Grating
The Concave Grating has the advantage of being able to constitute a spectroscopic system without any assistance from concave mirrors or similar types of image-forming elements. For this reason,the Concave Grating is used in a wide range of applications, such as analytical instruments,optical communications,biotechnology,and medical instruments. Spectroscopes incorporating concave gratings are classified roughly into two groups: polychromators or monochromators.
China star optics can provide customers with a variety of replicated grating products such as diffraction gratings, reflective gratings,holographic gratings,concave gratings etc. to meet different needs. Maximum ruled area is up to 300x300mm2 for plane ruled diffraction gratings. For replicated diffraction and transmission gratings the ruling density can be from 20 grooves per millimeter to 2400 grooves per millimeter, wavelength from 0.2 micron to 25 microns.
Please contact us for Customing Sizes and types of gratings.
Holographic gratings:
Specifications:
Ruled area: <=70 * 70mm
Wavelength range: 0.2-0.8um
Grooves per mm: 1,200 to 3,600L/mm
Diffraction: >70%
Ruled gratings:
Specifications:
Ruled area: <=70 * 70mm
Wavelength range: 0.2-15um
Grooves per mm: 50 to 2,400L/mm
Diffraction: >70%
Concave gratings:
Specifications:
Ruled area: <=70 * 70mm
Wavelength range: 200 to 900um
Grooves per mm: 490 to 1,200L/mm
Diffraction: >70%
Flat Field Holographic Concave Grating,Flat Field Concave Grating,Spherical Holographic Grating,Aberration Corrected Holographic Grating
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