SHINKO SEIKI CO.
Shinko Seiki SP Series Polarimeter (Strain Measuring Equipment)

Manufacturer: Shinko Seiki Co., Ltd.
Model: SP Series
Features
- The SP-125, SP-II and SF-II are small-sized, sturdy and portable, and ensure a sharp view and have sufficient accuracy for practical use. Measuring operations and other instrument handling procedures are extremely easy.
- The SP-125 and SP-II are equipped with a rotating phase-difference plate for phase difference measurements. It enables a wide measuring range when the standard phase-difference plate is used.
- The SF-II adopts the Senarmont method of phase-difference measurement, thus providing a wide measuring range that is particularly useful for measuring plastic materials with a high photoelastic constant.
Specifications
| Model | SP-125 | SP-Ⅱ | SF-Ⅱ |
|---|---|---|---|
| View range | φ125 mm diameter | φ40 mm diameter | φ40 mm diameter |
| Measuring range | -120 to +50 nm (Phase difference) | -120 to +50 nm (Phase difference) | 0 to ∞ nm (Phase difference) |
| Measuring accuracy | ±1 nm (Phase difference) | ±1 nm (Phase difference) | ±1.6 nm (Phase difference) |
| Specimen size | φ280mm×125mmH | φ210mm×100mmH | φ210mm×100mmH |
| Light source | 100V~110V 20 W (Fluorescent lamp) | 100V 60W | 100V 100 W (halogen lamp) |
| Size | 270 mm (width) × 440 mm (depth) × 470 mm (height) | 200 mm (width) × 233 mm (depth) × 400 mm (height) | 200 mm (width) × 233 mm (depth) × 400 mm (height) |
| Weight | Approx. 19 kg | Approx. 9 kg | Approx. 9 kg |
| Standard accessories | [1] Vinyl cover 1 [2] Phase-difference plate test record 1 | [1] Vinyl cover 1 [2] Phase-difference plate test record 1 | [1] Vinyl cover 1 [2] Rotation angle table of analyzer 1 |











