Measurement and Monitoring Dictionary - Controtec Technology & Control Ltd


Dew point :


What is the dew point?


The dew point is the temperature to which the air must be cooled to be saturated with water vapor, assuming constant air pressure and water content.

Why is it important to measure the dew point?

This helps meteorologists understand the amount of moisture in the air. Once the dew point reaches the air temperature, the air can no longer hold water vapor. At this point fog, dew or any kind of precipitation may form

What is the difference between humidity and dew point?

The dew point is the temperature at which the air becomes saturated (100 percent relative humidity). It just depends on the amount of moisture in the air. Relative humidity is the percentage of saturation at a given temperature, it depends on both the moisture content and the temperature.

 TEMPERATURE

Temperature controller / humidity controller :


What is a temperature controller? Where are they used?


Temperature controller is a very important electronic component in various cooling systems as well as in air-conditioned spaces where it is necessary to maintain a specific temperature. Very significant use can be found in industry in temperature controllers including in various factories, food warehouses, server rooms, logistics centers and more.

Temperature controller is a control device with a sensor that measures temperatures in different environments, the controller adheres to strict standards in various production processes. Temperature control equipment is a critical and significant part of a wider range of control and automation equipment in various plants that allows a process of control and supervision of the various stages of production.
Temperature meter / humidity meter - with us you will find a wide selection of different temperature and humidity meters in a variety of types and for any purpose.

TEMPERATURE

Temperature Sensor/Prob :

How a temperature sensor works?


The basic principle of operation of temperature sensors is the voltage across the diode terminals. If the voltage rises, the temperature also rises, followed by a drop in voltage between the base and transistor terminals of the diode.

A temperature sensor is an electronic device that measures the temperature of its environment and converts the input data into electronic data to record, monitor or modify temperature changes.

 

 What are PT100 sensors ?


Pt100 sensors are the most common type of platinum resistance thermometer. Heat resistance meters are often called Pt100 sensors, although in reality they may not be Pt100. Pt refers to the fact that the sensor is made of platinum (Pt). 100 refers to the fact that at 0 ° C the sensor has a resistance of 100 ohms (Ω).

A resistance thermometer is a type of temperature sensor. It consists of an element that uses resistance to measure temperature. Common names of a resistance thermometer include

 TEMPERATURE

Air pressure :


What is air pressure? What causes air pressure?


The air pressure is caused by the weight of the air molecules above. Even tiny air molecules have a certain weight, and the huge number of air molecules that make up the layers of our atmosphere have a lot of weight, which presses on everything below.

How is air pressure measured?

Atmospheric pressure is usually measured in a barometer. In a barometer, the mercury column in a glass tube rises or falls as the weight of the atmosphere changes.

A barometer (bar) measures atmospheric pressure in units of measurement called atmospheres or bars. Atmosphere is a unit of measurement equal to the mean air pressure at sea level at a temperature of 15 ° C (59 ° F). RTDs (short for resistance temperature detectors), RT, Pt100 or Pt1000.     

 Air pressure

HYGROMETER - Humidity sensor/prob :


What is a moisture meter?


A hygrometer, or hygrometer, is a measuring device designed to measure the amount of moisture in the air relative to dry air.

Temperature and humidity sensors are among the most common environmental sensors. Humidity sensors are sometimes also called humidity meters. These devices are used to provide the actual humidity condition in the air at any given point or place.  

 Humidity

Flow meter :


What are flow meters and what are measured?


Flow meters are devices that measure the amount of liquid, gas or vapor that passes through them. Some flow meters measure flow as the amount of fluid that passes through the flow meter over a period of time (such as 100 liters per minute).

In other words a flow meter measures the flow rate used to determine the linear or non-linear mass and the volumetric flow of a liquid or gas. The many names of flow meters include flow meter, flow indicator, liquid meter and flow rate sensor.   

Flow Meter