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- Specification
- Standard
- Options
- Features
- Introduction and use
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- 商品名称: WYL-4 Stress Meter
technical parameter
Technical indicators Monochromatic Light Wavelength 589.44nm
Optical path difference measuring range ± 590 nm
Degree plate value 5nm
Minimum reading (1/5 estimated reading) 1nm
Instrument Zero Error ±2nm
Waveplate reading repeatability 1nm
light source 220V 20WLow pressure sodium lamp
The maximum size of the sample to be inspected width 440mm；length 440mm；high 240 mm
Instrument size (mm) 413 ×250 ×400
weight Net weight 7kg Gross weight 8kg
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Standard configuration items quantity
main machine One Instruction Manual One Product Certificate of Conformity One power cable One Fuse (2A) 2 each Packing List One -
★ Direct reading nanometer optical path difference, no need to calculate.
★ Double-divided field of view zero position detection, high sensitivity.
★ The sample table is automatically positioned at 45 degrees.
★ Small size, compact structure.
★ Easy to operate and reliable. -
Instrument introduction:
Due to uneven cooling or other reasons such as mechanical action, transparent objects will generate internal stress and cause birefringence. The crystalline substance itself has the optical characteristic of birefringence. The WYL-4 stress meter adopts the principle of polarization photoelectric vector synthesis and optical compensation, and determines the size of the stress birefringence of the sample by quantitatively measuring the optical path difference of the sample. This instrument can accurately measure the optical path difference of the optical wave plate and determine the stress level of the optical glass. It is an indispensable instrument in the optical instrument manufacturing industry and an important tool for the study of crystal minerals.
Use of the instrument:
A stress meter is an instrument used to check the magnitude and distribution of stress in a transparent object. It is not only widely used in optical glass, optical instruments, glass products, plastic products and other industries, but also plays an important role in the inspection of safety and explosion-proof indicators of building materials, lamps, pharmaceuticals, beverages, and handicrafts. There are also many applications in science. At the same time, this instrument is also an ideal teaching and experimental equipment for colleges and universities.