1.Observation range and sample size: The observation range is the range of the field of view, and the sample size can be larger than the range of the field of view. As long as the observed part can be placed in the field of view, it can be observed

2.Measurement unit: If the degree is in degrees, you can multiply it by a coefficient and convert it to nanometer values yourself

WYL-S.Stress gauge: digital reading, connected to a computer to output images

WYL-SThe digital image stress meter is an instrument used to measure the magnitude of birefringence caused by internal stress in transparent objects. It uses CCD camera and image processing technology to measure internal stress of objects based on the principle of photoelasticity. This instrument has an easy-to-use interface, stress analysis calculation, and stress distribution image display function. It can measure stress within a large object area at once, and the measurement operation is simple and convenient, making it very suitable for industrial applications.

The source of this stress (birefringence) is caused by uneven cooling or external mechanical effects, which directly affects the quality of optical glass, glass products, and transparent plastic products. Therefore, stress control is an extremely important step in the production process of optical glass, glass products, transparent plastic products, and other materials. This stress gauge can qualitatively or quantitatively identify the quality of products (test pieces) by observing stress, and is widely used in the industries of optical glass, glass products, and transparent plastic products for rapid and large-scale inspection, solving complex problems that cannot be solved through mathematical operations in practice.

TECHNICAL INDEX

Stress measurement range: 0-158nm

Resolution: 0.1nm

Light source: 632.8nm high-power LED light

Power supply: AC220V ± 22V; 50Hz±1Hz

Quality (net weight): 28kg

Dimensions (L × b × h): 390mm × 482mm × 1300mm

Instrument structure

The outline diagram of the stress gauge is shown below

The structure of this instrument has the following characteristics

1According to the size of the sample, the height adjustment screw (5) can be loosened and moved up and down to the appropriate position with the help of the support pillar (11).

2Loosen the fixing screw (2) and replace the object tray (3) to change the aperture of the large aperture.

3. The two screws on the lens (8) can respectively focus and adjust the light intensity.

4. In a bright room, a black cloth of appropriate size can be used to cover the open measurement area with 3 fixing screws (9) for measurement.

5. Using LED light source, the instrument has no heat source and can perform long-term measurements.

6. There are no strict requirements for the placement of objects, making the measurement simple and convenient. Simply rotate the rotating disc (6) to align the engraved lines with positions 0, 1, 2, and 3, and collect four images to complete the measurement.

Maintenance and storage of instruments

1The instrument should be placed in a well ventilated and dry place. Polarizers should be moisture-proof and moisture resistant.

2Workbench frosted glass is made of glass with minimal stress. When using, the test piece should be handled with care to avoid damaging the frosted glass. If it is damaged during use, stressed glass should not be used as a substitute. Otherwise, it will affect the measurement accuracy.

3When handling instruments, strong vibrations should be avoided to prevent the movement of polarizing mirrors, full wave plates, CCD lenses, etc., which may affect the accuracy of use