EMIN 소식

Frequently Asked Questions about using a multimeter: measuring current, selecting the measurement range, measuring diodes, MOSFETs, inverters, PLCs, and 4-20mA signals.

Automotive circuit boards, sensors, modules, and plastic components can all experience issues after repeated transitions between cold and hot environments. A thermal shock chamber operating from -40°C to +150°C enables the replication of these temperature fluctuations under controlled testing conditions.

An electronic component may operate stably under constant temperature conditions yet fail after repeated rapid transitions between hot and cold. The issue typically stems not from a specific temperature level, but rather from the rate of temperature change and the number of hot-cold cycles

An MRI system may be correctly installed and fully connected to the power supply, yet still encounter issues if the surrounding environment fails to meet technical specifications. Electromagnetic interference, RF shielding, power quality, grounding, temperature, humidity, and particulate levels are all factors that may require assessment, depending on the facility's design and the manufacturer's requirements.

An air pressure meter provides reference data for calculation models involving altitude, airflow, air density, gas volume, and measurement uncertainty. Any variation in atmospheric pressure can propagate errors throughout an entire measurement or control system

During the operation of industrial machinery or the transportation of goods, persistent mechanical vibrations inevitably occur; these are a primary cause of material fatigue, loosened connections, and cracking in printed circuit boards (PCBs). To ensure product integrity before delivery to customers, R&D and QA/QC engineers must simulate these dynamic forces using vibration test systems.

Two barometers placed side by side can display different atmospheric pressure readings. Learn the technical reasons behind these differences and what they mean for measurement accuracy.

Tubes with capacities of 0.2 ml, 1.5 ml, 15 ml, or 50 ml are commonly found in laboratories, yet each type is associated with specific sample categories and equipment configurations. DNA and RNA samples typically require small-volume microtubes; blood and cell samples often utilize 5 ml or 15 ml tubes; while large-volume processing workflows may require tubes of 50 ml, 100 ml, or greater capacity

A barometric pressure meter (barometer) often detects changes in weather conditions before rainfall begins. As atmospheric pressure falls, the structure of the surrounding air mass is also changing. However, there is no fixed pressure threshold that guarantees rain will occur.

High-speed centrifugation over extended periods generates heat. For biological samples such as blood, plasma, proteins, or nucleic acids, an unexpected rise in temperature can affect processing results. Consequently, the motor becomes a key factor to consider, alongside rotational speed and rotor capacity