Ionization smoke detector is more sensitive to smaller smoke particles than the photoelectric type detectors. In a fire, the alarm triggering times between these two types are similar. But in a smoldering fire, when big particles are released, photoelectric detectors are triggered earlier.
Author archives: Lan Ma
One of the most popular gas detection devices we use at home is the thermostat. It usually consists of temperature and humidity sensors. Temperature sensors are categorized into two basic types: Contact Temperature Sensor and Non-Contact Temperature Sensor. Contact Temperature Sensors requires physical contact with the detected object while the Non-Contact type doesn’t. The thermostat is categorized as being the contact sensor type. There are also four common types of temperature sensors including a thermistor, Resistive Temperature Device (RTD), thermocouple and Integrated Silicon Linear Sensor.
The Pujiang Innovation Forum 2017 - Canada Forum was held on May 16,2017 in Metro Toronto Convention Center. As a member of Canadian company representatives, Ambience Data has attended this clean technology event. This yearly event serves as the bridge to connect Canadian and Chinese businesses forging an eco-chain between two countries. 2017 Pujiang Innovation Forum was a great success.
As the northern hemisphere entered winter season, public heating supply in northern China was in full swing again. At the same time, air pollution dramatically increased at this time of the year in northern China.
There have been discussions around the cause of air pollution. Many people believe that heating supply is the influence factor since coal is the major power source for heating companies in China.