Polarizing stress instrument-403 PTC

Suitable for:

L suitable for testing lamp has a complex structure of the product.

L detection of high density plastic products, such as invisible glasses, etc.

L detection optical crystal, such as (fluorite) etc. 【

Parameters:

model

The PTC-403

size

W295 x D375 x H460mm

weight

12 KG

Measure the length of the sample

D200mm W200 x

Determination space height

31-250 mm

Light source

Fluorescent 30 W

power

Ac 220 V

accessories

Stress direction confirm great cleansing liquid 1 bottle by board two wavelength

Specifications:

1, polarizing stress instrument light field: 120 CD/m2 brightness (fluorescent 30 W)

2, polarizing stress instrument polarized elements any degree of polarization is equal or greater than ninety-nine percent

3, the stress is a 200 * 200 mm polarization

4, polarizing stress instrument structure: inspection partial mirror and the partial lens were inserted between a quarter wave of films and the wave plate (wavelength for 565 nm), the slow wave plate and the partial lens axis the polarization of the plane into 90 degrees

5 for the top mirror, partial have rotation Angle measurement device (calibration value to one degree, the largest measuring scope for 180 degrees)

Detection methods:

1. Crossed Nicols observation method

2. Sensitive photosensitive Color test Method Color

3. SenarmonMethod compensation method

Senarmont compensation method can stress quantitative analysis detection. Turn on the power, has not put the whole vision scope is dark brown pigment samples of the sample in, not rotating, by partial lens, observation out the window for a maximum stress is. Rotating inspection on the plate partial mirror, until the window into dark brown, the record at this time scale of rotating Angle and the thickness of the point, can use the equation conversion out stress value.

Formula: formula: stress = optical path difference / (be the measuring point light way long * bolts coefficient)

Mpa = nm / [cm * (nm/cm) / Mpa]