Thermal electric potential method conductivity type identification instrument

Thermal electric potential method conductivity type identification instrument/Electric type identification instrument/PN tester model: DP-12

The conductivity type identification instrument uses the principle of thermoelectric potential to identify the conductivity type of semiconductorsInstruments of PN type.
Instrument set composition: This instrument consists of components such as a host and a probe. Conduction typeP or N is displayed by a digital display. The probe is used in combination with cold and hot probes.
Thermal electric potential method conductivity type identification instrumentTechnical Specifications
1. PN identification range: ρ=1 × 10-4~1.0 × 103 Ω - cm
2. Measurable semiconductor material dimensions:
PN identification: Contact surface Smin=3mm * 3mm
3. Probe parameters:
⑴ Thermal probe: Temperature adjustment range of 60 ℃ to 200 ℃
⑵ Cold probe: single needle type,
4. Power supply: 220V ± 10% 50Hz, power consumption:<20W
5. Working environment: Temperature: -10 ℃~40 ℃ Relative humidity: 50%~70%
6. Dimensions and weight:
host: 175mm (length) x 200mm (width) x 70mm (height) Weight: Approximately 1kg
Cold and hot probe wires: each with a total length of 100cm

Coarse fiber analyzerModel of coarse fiber detector: DP-SLQ-6A

The coarse fiber analyzer is based on the principle of acid-base washing method, integrating acid and alkali treatment and flushing. It uses closed electric heating, liquid addition, digestion, filtration, and flushing methods to determine the coarse fiber content. The sample does not need to be transferred during operation, and can decompose the coarse fibers in the material. At the same time, it can be adjusted one by one according to the required temperature, thus achieving accurate and fast results.The DP-SLQ-6A coarse fiber analyzer is suitable for determining the content of coarse fiber, lignin, cellulose, and hemicellulose in grains, feed, food, and other agricultural and sideline products.

Technical Specifications:

1. Test range: 0-100;

2. Sample quantity: 1-6 samples can be tested simultaneously at a time;

3. Sample weighing: 0.5-3g;

4. Test accuracy: repeatability ≤ 0.4%;

5. Test time: ≤ 90 minutes;

6. ★ Heating method: Half circle silicon carbide heating, single temperature adjustment;

7. ★ Sealing method: using upper and lower tetrafluoroethylene isolation;

8. ★ Liquid addition method: pressure injection type;

9. ★ Reagent heating method: automatic constant temperature adjustable, over temperature protection;

11. Temperature control range: room temperature to 400 ℃;

12. Power supply: 220 (V) ± 10%, 50-60HZ;

13. Rated power: 2700W;

14. Dimensions: 560 × 340 × 640 (mm);

15. Weight: 40kg;

Audio signal generator/Signal generator model: DP-RK1212E

The DP-RK1212 series audio signal generator adopts a voltage controlled oscillation circuit to generate stable and low distortion sine wave signals. The output amplitude and frequency are both displayed digitally, and the scanning range can reach 1:1000 or more. The starting and ending points of the scanning can be set arbitrarily, and it has functions such as power on delay output and short circuit protection. At the same time, it is also designed to test the "positive" and "negative" polarity of speakers and dynamic receivers of any type, size, and impedance.

Semiconductor Silicon Material Sorter/Silicon Material Sorter Model: DP-SED-V

1. It has the function of resistivity and model testing. Suitable for sorting conductive models and removing heavily doped materials.
2. AC220V power supply
3. Simultaneous sound and light alarm for heavy mixing. 4. Derivative product: Simple heavy mixing pen (only heavy mixing alarm, no model measurement)
4. Electrical resistivity: less than 0.5 ohms per centimeter alarm
5. P/N model: 0.005 ohm cm<resistivity<1000 ohm cm

smoke generatorModel: DP-010

1Overview:

Suitable for capturing and recording airflow patterns in clean rooms and local clean environments. The acceptance of clean rooms requires an evaluation of the airflow direction.

IIFeatures:1. Smoke continuously for more than 20 minutes. 2. Can be connected to a smoke pipe to produce curtain shaped smoke (can be extended up to 2 meters) for testing in purification workshops ranging from 1 to 10000

IIIScope of application

1．Clean room laminar flow test2. Airflow balance test 3. Chemical treatment equipment exhaust system test

5. Pressure balance inside and outside the room 6. Leakage test of air ducts