October 18, 2024Fire alarm sensorA device that converts a physical quantitythat characterizes a fire alarm condition into another physical quantity.According to the nature of the working effect , it can usually be di...view
July 12, 2024Minimum resistance value1. The zero-power resistance value of the lowest point on the resistance-temperature characteristic curve of a positive temperature coefficient thermistor (PTC thermistor).2. T...view
November 11, 2024Magnetic sensorThere are many kinds of magnetic sensors made by usingvarious physical phenomena. The magnetic needle is an early magnetic sensorused by the compass to detect the direction. In recent y...view
August 6, 2024Catalytic Gas SensorsUses the change inresistance caused by the combustion of combustible gas on the contact surfaceof catalytic material to convert the sensed combustible gas concentration intoa usab...view
October 26, 2024Knock sensorAlso called a vibrationsensor. The combustion of an internal combustion engine increases thecompression ratio, which causes explosive abnormal combustion during ignition.A sound like a ham...view
October 11, 2024Hydroacoustic directorAn instrument fordetermining the direction of a sound source in water. It has two or morereceivers placed in different locations. The receivers amplify the receivedsound signals ...view