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Chongqing Dodem Communication Technology Co., Ltd

Supplier From China
Jul-08-11
Supplier : Fiber optic tester: optical power meter, optical laser source, visual fault locator, pon power tester, OTD fiber cable identifier, fiber multi meter, data transmission tester: ADSL2+ tester, XDSL tester, IPTV tester, 2M tester

Established: 1994 Standards: ISO9000

Verification Status



Contact Details:
Building Dodem
No.66 Huangshan Middle Ave
Chongqing 401121
North District China


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Mar-08-25

Inp Wafers, WAFERS

$350 - $2.50K / Piece (CIF)
MOQ: 10  Pieces
Sample Available
Supplier From South Hackensack, New Jersey, United States
 
INDIUM PHOSPHIDE (InP) WAFERS are semiconductor materials made of indium phosphide, a compound semiconductor that is widely used in high-frequency and optoelectronic applications. Due to its efficient electron mobility and direct bandgap properties, InP is favored for devices such as:

High-speed electronics
Laser diodes
Photodetectors
Telecommunications applications, including optical fiber communication
We offer the following InP Wafers:
Undoped InP Wafers: These are pure InP with no intentional doping, used in various applications where intrinsic properties are required.
N-type InP Wafers: Doped with donor impurities (such as tellurium) to increase electron concentration, useful in transistors and high-speed electronics.
P-type InP Wafers: Doped with acceptor impurities (such as zinc) to create holes in the semiconductor, used in light-emitting devices and other optoelectronics.
InP Substrates: Used as a base for growing other semiconductor materials in heterostructures for various applications.
InP Membrane Wafers: Thin layers of InP used for specific applications, including applications in flexible electronics and advanced photonic devices.
InP-based Quantum Dot Wafers: Engineered to create quantum dots that can be used in photonic and optoelectronic devices for enhanced performance.
Mar-11-22
 
Product description

Current transformer field tester was developed with high-end testing technology, large-scale electronic circuit design and accord with national related protocol . It has solved the problem of big working intensity,trival operation while on-site test of current transformer, voltage transformer. Meanwhile the product has a reliable performance,and the function is strong.



Technical index
Dec-17-21
 
Product description

Anti Emulsification performance automatic tester meets the requirement of GBT 7305-87 and GBT 7605-87, which adopts 32-bit high-performance microprocessor, high definition color touch screen and digital PID control algorithm to achieve high accuracy of temperature control, good repeatability, automatic lifting of stirrer, simultaneous test of four samples, smart storage and convenient check of test result.



Technical index

Temperature measurement Platinum resistance

Water bath temperature 54 Room temperature 100 can be set arbitrarily

Control accuracy 0.1

Stirring speed 1500 15 rmin

Number of cylinders 4

Self-check function Stirring device lifting and rotating

Display High definition color touch screen

Power supply AC 220V 22V

Power 1800VA

Frequency 50Hz 2.5Hz

Ambient temperature 10 35

Ambient humidity 85

Weight about 24kg

Profile size 358mm 302mm 858mm

Anti-emulsification performance automatic tester
Dec-22-21
 
Product description

3 phase capacitance and inductance tester is developed for the problems of capacitance value, and it solves the following problems

Field measurement capacitor needs dismantling cables, not only the big workload but also easy to damage the capacitor.

Low capacitance meter output voltage causes the fault detection rate is low.

The instrument has characteristics of small measured workload, fast and simple, stable performance, high measurement accuracy, high fault detection, etc.

Reactor inductance measurement.



Technical parameters

Working power supply

Rated voltage power frequency of 220 V10

The rated frequency 50Hz

The rated output 2V 20V 500VA

Equipment normal working conditions

Environmental temperature 10 50

Relative humidity 90

Display and print mode LCD display with Chinese characters

Panel high speed printer

Shape weight 370 260 220 mm 15 kg

5. Work principle as shown in figure 1

3 phase capacitance and inductance tester

Feature

The inductance capacitance tester adopts the bridge circuit structure, the standard capacitor and tested capacitor as two arms of the bridge circuit. When conducting the capacitor capacitance value measurement, test voltage applies on the standard capacitor and tested capacitor at the same time. Processor obtains capacitance value of tested capacitor by sensors with acquisition the current signals through the two capacitors after processing.

Due to adopting the standard capacitor, tested capacitor synchronous sampling technology, it may not affected by the power supply voltage fluctuation; Combined with the measurement process is fully automatic, which avoids the error due to manual operation, so it has the characteristics of good stability, good repeatability, accurate and reliable, the machine has tested object automatic identification and short circuit protection function.
Dec-22-21
 
Overview

Generator Rotor AC Impedance Testing Instrument is a special instrument for determining whether the turn-to-turn short circuit exists in the generator rotor winding, and can manually and automatically unidirectionally or bidirectionally measure many parameters of the generator rotor such as voltage, current, impedance, power and rotating speed.Generator Rotor AC Impedance Testing Instrument is the latest enhanced AC impedance tester launched by our Company. The instrument adopts the state of the art high speed microprocessor technology with more powerful functions, preferable performances and more convenient use. The Tester has a series of characteristics such as high reliability, easy operation, high test precision, being compact and lightweight and etc., and currently is in the domestic leading level.



Major Technical Indicators

Temperature 5 C 40 C

Relative Humidity 0 1 FS2d

Cos 0.1 0.5 FS2d

1kW 72KW 0.1 Cos 0 1 FS2d

Cos0.1 0.5 FS2d

Frequency 40-75HZ 0.2

Volume 415 225 200mm
Aug-26-22
 
Overview

Microcomputer relay protection tester also known as three-phase microcomputer relay protection tester, three-phase microcomputer relay protection tester is a special power relay protection tester.Three-phase microcomputer relay protection tester has 4 phase voltage 3 phase current output, suitable for various types of relay protection device test.Three-phase microcomputer relay protection tester adopts high speed and high performance digital control processor as control microcomputer, and the software uses double precision algorithm to generate arbitrary high precision waveform of each phase.Because of the integrated structure, each part is closely combined, the data transmission distance is short, and the structure is compact.It overcomes the problem of low number of output waveform points caused by long data communication line and narrow frequency band in the measurement and control instrument directly controlled by laptop computer.



Technical parameter :

AC current output
Output accuracy
Phase current output (effective value)
Three merge current output (effective value) 120A
Phase electric length time allows work value (effective value) 10A
Phase current maximum output power 420VA
Maximum output power at the maximum output of three 900VA
Working time is allowed when the maximum output of the three mesh is output 10s
Frequency range (fundamental) 20 1000Hz
Harmonics 1 20 times


AC voltage output
Output accuracy Level 0.2
Phase voltage output valid value 120V
Line voltage output valid value 210V
Maximum voltage output value 240V
Phase voltage / line voltage output power 80VA /100VA
Frequency range (fundamental) 20 1000Hz
Harmonics 1 20 times
Dec-17-21
 
Overview

In the power system factories and enterprises have a large number of electrical equipment. Most of its internal insulation is oil-filled insulation type. Dielectric strength test of insulating oil is a necessary routine test item. In order to adapt to the rapid development of the power industry our company is the first in China to develop a fully automatic oil dielectric strength test system. This series of products according to the latest national standard GB t507-2002 the power industry standard dl429.9-91 and the latest power industry standard DL t846.7-2004 design and manufacture using microcomputer control mechanical and electrical integration of all automation high test accuracy greatly improve the work efficiency but also greatly reduce the labor intensity of the staff. It is agreed that this series of products is the ideal insulation oil voltage test equipment in China.



Specification

Technical Parameters
Power supply voltage AC 220V22V
Power frequency 50Hz 2.5Hz
Work rate 200W
output voltage 0-80kV
Booster capacity 1.5kVA
Booster speed 2.0 2.5 3.0 3.5kV s adjustable
Total voltage distortion 3
Installation dimensions 470 390 420mm3
Weight 40kg
Conditions of Use
Environment temperature 40
Relative humidity 80
Capacity of the oil cup 200ml
Distance between the electrodes 2.5mm
Mar-19-08
Supplier From Seoul, South Korea (Republic Of Korea)

Verification Status