How to tackle the 7 principles of HACCP in restaurants and food companies with simple technology
General Use & Installation
Water level sensor to measure the water level in a container or well
A Weather Station with API
Effortless groundwater level monitoring
How is Reporter powered?
How Crodeon helps research companies save time with remote monitoring and data logging
Crodeon measures air quality and insulating performance for Total Value Wall
How Sint-Rembert optimises ventilation and CO2 in schools
Weather Station Maintenance
How to install a weather station
10 things to consider when buying a professional weather station
Why temperature control is incomplete without remote monitoring
A weather station with solar panel
A weather station with multiple sensors
How KuNa Fish makes fish processing and packaging a piece of cake
3 Reasons why you need a power failure detector at your construction site
Why you need a freezer power outage alarm in an industrial fridge or cold room
What is the difference between ultrasonic and electromagnetic flow meters?
Planning your onion storage facility: 3 things to consider
How Bert gets the best deal for his onions by using a smart storage system
When do you need a titanium level sensor?
4 Things to look for in a temperature sensor with API
Choosing the right tool for measuring relative humidity in concrete structures
3 reasons why storing records needs remote monitoring
3 reasons why you should monitor your roof garden
The importance of lux in offices: 500 lux
Protecting fruit tree blossoms from freezing with the aid of frost detection
Comparing the Watermark sensor to the WaterScout SM100
Pseudomonas syringae and frost damage in fruit trees
Understanding the difference between Crodeon and other remote monitoring systems
Preventing frost damage in a cactus greenhouse
Monitoring heat treatment in cargo containers
4 fantastic ways to monitor your hydro garden or vertical farm
Making blueberry farming more sustainable: Reporter and the water balance model
Measuring lux in chicken pens, pigsties and other stables
PAR & plants, is it the right light sensor for you?
Temperature registration for HACCP
Poultry monitoring and alarm
An easy and reliable weather station
Easy online dewatering
Livestock heat and suffocation alarm
Cold room monitoring
Smart watering system using remote irrigation monitoring
Storm & scaffolding: use a weather station to your advantage
Using a weather station on your construction site
Irrigation control with remote monitoring
Professionally farming mealworms: Measuring CO2, temperature and humidity
Remote Monitoring IoT
In this article we explain how to measure dew point and wet bulb temperature. We offer the mathematical formulas that you can use, and we explain how to get started yourself, whether you have technical skills or not.
Dew point is the temperature at which moisture in the air will begin to condense and form dew. This is a metric used for measuring relative humidity and can be measured in Celsius or Fahrenheit. The higher the dew point, the higher the relative humidity will be. A lower dew point indicates that less moisture has been evaporated into the air, so less water will evaporate from anything moist like your skin, which means it's more comfortable to be outside with lower relative humidity levels.
Wet bulb temperature is the temperature measured by a sensor that is covered in wet cloth. At 100% relative humidity, the measured wet-bulb temperature is equal to normal dry-bulb temperature. At any other relative humidity, wet-bulb is lower than air temperature.
How to measure dew point?
The dew point is the temperature to which the air must cool for the water vapor in it to become saturated and begin to condense into dew. Simply put, it is the temperature at which condensation occurs. You can use the following formula to roughly calculate the dew point depending on the air temperature and the relative humidity (source: https://en.wikipedia.org/wiki/Dew_point).
How to measure the wet-bulb temperature?
Covering a temperature sensor in wet cloth is not easy or practical. Another way to measure the wet-bulb temperature, is using an instrument for measuring humidity and another instrument for measuring temperatures. Applying the following formula gives you the wet-bulb temperature (source: https://journals.ametsoc.org/doi/pdf/10.1175/JAMC-D-11-0143.1).
How to get started quickly?
Different kinds of technology (hardware and software) are available on the market based on your level of technical skills.
If you have reasonable technical skills, combining an accurate temperature sensor with relative humidity readings is doable. After these values are logged in your sensor device or cloud environment, applying the above formulas is all you need to do. If you’re using a microcontroller to log the data, make sure the onboard processor is capable performing these complex calculations. This kind of limitation is not relevant when you’re calculating in the cloud.
If your have no technical skills, or no time to start tinkering, you can use an off-the-shelf solution. An example of a sensor device that is capable of measuring both dew point and wet-bulb temperature is the Crodeon Reporter. Crodeon offers a humidity sensor (based on the SHT35 sensor chip from Sensirion for maximum accuracy) and an all-in-one weather sensor to use as a complete weather station. Both of these sensors offer dew point and wet bulb values by default.
As Co-Founder & CEO at Crodeon, Jonathan has a broad knowledge about how sensors are changing our daily lives. Over the past 7 years he has been talking to customers in many sectors, from agriculture to industry and everything in between. Jonathan knows the ins and outs of Internet of Things and what keeps our customers awake at night.