Metrology and Calibration Service
Metrology Center of CVC (hereinafter referred to as“the Center”) is the first calibration laboratory accredited by China National Accreditation Service for Conformity Assessment (CNAS) in mechanical and electrical industry. The accreditation certificate No. is CNAS L1093.
The Center has more than 50 highest metrology standards in the fields of the electromagnetic, radio, time and frequency, thermal, length, mechanical, optical, chemical and so on, and got the “Accredited Metrology Institute Certificate” awarded by China Machinery Industry Federation accredited by CNCA. CVC is accredited to use CML mark. Data issued by CVC can be traced to the international and national metrology standards, and certificates can meet a variety of certification requirements.
The Center adopts "one-stop" service mode of the field testing and metrology and calibration (sample sending, mail consignment apparatus). The Center has served many industrial well-known clients and got their high degree of recognition. For many years, the Center has achieved “Outstanding Integrity Unit of Measurement” Three-Star (the highest honor star) awarded by Chinese Society for Measurement (CSM)
| 2.Qualifications and Accreditations
CNAS Accreditation Certificate
CML Accreditation Certificate
Trust-worthy Cabliration Center
Electrical and Electromagnetic Laboratory
Electrical laboratory carries out metrology and calibration for the following equipments:
Performance test equipments: Standard battery, DC resistor (box), DC potential difference meter, DC bridge, Digital DC resistance tester, Pointer type AC/DC voltage current power meter, Digital voltage current power meter, Single/Three-phase power meter, Power factor meter, AC/DC power supply (voltage, current, power), Digital multimeter, Three-function meter calibrator, Clamp meter, Multifunction calibration source etc.;
Safety test equipments: withstand voltage tester, high pressure gauge, spark tester, leakage current tester, ground resistance tester, loop resistance tester, insulation resistance tester, high resistance box, capacitor leakage current tester
Radio laboratory carries out metrology and calibration for the following equipments:
Time frequency: Frequency meter, Time interval measuring instrument, Electronic stopwatch, Mechanical stopwatch, Various timers, Quartz frequency standard;
Radio equipments: Oscilloscope and attenuation rod, Spectrum analyzer, Frequency sweep meter, High frequency millivolt meter, AC bridge, Harmonic analyzer, Distortion meter, Modulation analyzer, Radio communication tester, Low frequency signal generator, High frequency signal generator, Attenuator etc.;
Thermal laboratory carries out metrology and calibration for the following projects:
Mercury thermometer, Digital thermometer, Temperature measuring instrument,
Various types of temperature measuring twice meters, Various types of work-use thermocouple, Thermal resistance thermometer, Semiconductor thermometer, Temperature sensor, Transmitter, The twice-integrated instrument calibration, High and low temperature test chamber, Drying oven, Salt spray test, Constant temperature room, Enthalpy difference lab, Heat balance room calorimeter and other types of integrated equipment for temperature calibration.
Length laboratory carries out metrology and calibration for the following projects:
Vernier caliper, Dial indicator (including large range), Dial gauge, Depth caliper, Height gauge, steel tape measure, Thickness gauge, Plug gauge, Test finger, Test pin, Test needle, Ball pressure test device, Block gauge, Plate, Microscope, Projector, Three-coordinate measuring machine, Elongation tester, Geometric quantity engineering test and a variety of high-precision length and angle measurements.
Mechanics laboratory carries out metrology and calibration for the following projects:
Various working force measuring instruments, Torque wrench, Torque meter, All kinds of tension, Pressure and universal testing machine, Pendulum type/Cantilever beam type impact testing machine, Spring tension and compression testing machine, Electronic scale, Mechanical scale, Weight, Digital pressure gauge, Pressure sensor, High-precision pressure gauge, Work-pressure gauge, Vacuum gauge and other vacuum system calibration test, Enthalpy difference lab, Heat balance room calorimeter and other types of integrated equipment for pressure calibration.
Optical, Physical and Chemical Lab
Optical, Physical and Chemical laboratory carries out metrology and calibration of the following projects:
Color difference meter, Whiteness meter, Standard light source box, Conductivity meter, Acidity meter etc.
Comprehensive laboratory carries out metrology and calibration for the following projects:
Non standard equipment (complete set of equipment): Enthalpy difference lab, Heat balance room calorimeter, Compressor refrigerating capacity test device, Refrigerator performance comprehensive test device, Room air conditioner factory performance test device, Electric leakage tester, Inter-turn voltage tester, High voltage probe, All kinds of household appliances detection line and others.