Monitor the crack propagation with the potential difference of the current flowing through the test specimen.
The Crack Growth Monitor CGM-7 is a measuring device developed by Matellect Ltd. (UK) through years of testing research and experience, which monitors crack growth using the alternating current potential drop method (ACPD).
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basic information
【Features】 ○ The frequency of the alternating current supplied to the test specimen can be continuously changed from 300Hz to 100kHz in 1Hz increments (Note: The output frequency range varies by model) ○ Four types of filtering settings are selectable ○ Gain values can be selected from 9 options ranging from 1000 to 30000 ○ All models come standard with two channels, allowing for reference measurements as is ○ The supplied current value can be set up to a maximum of 2A in increments of 1mA (Varies by model) ○ The offset value of the output signal can be continuously selected from -4V to +4V ○ The resistive and inductive components of the PD value are displayed simultaneously ○ Each channel is equipped with a standard preamplifier unit, achieving excellent signal-to-noise ratio ● For more details, please contact us.
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Applications/Examples of results
Monitoring crack growth in structural materials such as nuclear power, thermal power, chemical plants, aircraft, and bridges ◆ Research on stable crack growth processes ◆ Evaluation of crack dimensions ◆ Research on dynamic crack initiation and growth ◆ Monitoring during the introduction of pre-cracks in test specimens ◆ Research on crack growth due to fatigue ◆ Research on stress corrosion cracking ◆ Research on material degradation ◆ Monitoring during crack initiation
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Company information
Nihon High Con Co., Ltd. is a company engaged in the import and sales of industrial measuring instruments, testing and measuring equipment, and more. We develop the latest technologies, introduce and sell them in Japan, and provide local adjustments and maintenance, expanding our business. We aim to provide timely services that sensitively respond to the changing needs of society.
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