Minerals, life microorganism, plants and bacteria’s can be found in liquid and smell and taste depend on them even if our individual sense is different. Authorities try hard to make water safe with all kind of different treatments biologically and chemically. Typical liquid sensors are chemical sensors and in touch with the probe like pH level, Dissolved oxygen, Ammonium, or Conductivity. For compliance with a standards use certified laboratories. The high tech liquid sensor from Hohner Corp. measures physical properties with optics without being in touch with water. It is designed to show the smallest possible change in liquid quality.
Following optical properties are detected in this sensor
Color – sometimes invisible for a human eye
But in many cases a contamination colors liquid
The sensor measures blue green red and infrared
Clarity – sometimes invisible for the human eye
Tiny contamination’s can be detected by adding all color
outputs
Refractive index
Typically alcohol has a refractive index of 1.3
This index is typical for every fluid
Polarization
Alcohol has a typical polarity of 90 degrees
Fluorescence
Many bacteriological contamination’s glow if lightened with
UV light
Luminescence
Many bacteriological contamination’s glow if lightened with
UV light and keep on glowing over a period of time or forever
Rayleigh scattering
Photons are elastically scattered
The emitted photon has the same wave length as the absorbing photon
Raman effect
Photons are inelastically scattered
The emitted photon has the a different wave length as the
absorbing photon
Calibration The sensor is simply calibrated to 100% pure alcohol and
deviation from this value is measured
Output to PC
Example via Excel can be posted on the web and monitored over any time
Examples: Out of this physical values – any variation can be monitored
Principle
Flashing lights and photodetectors are around a boro silicate glass cylinder and together with optical filters and masks the results are used in a microprocessor to calculate most important data to terminate physical quality of water.
The sensor is calibrated to 100 % pure distilled water and calculates deviation.
An 1 ¼ “ flange on in and output of the sensor allows also testing of waste water.
The sensor is made of food approved stainless steel.
The sensor is water proof and can be used down to 3ft under water.
Since this data’s are physical properties and therefore vary with ambient temperature we also measure temperature
Hohner Corp has a water sensor installed in Beamsville. This water sensor is connected to a GSM telephone modem. The telephone modem is ready available from many vendors like Nokia Motorola Siemens etc and has a SIM card. Any provider will assign a phone number to it. Power supply for water sensor and modem is pulled from modem batteries or line power.
To call on the quality of Beamsville water we offer 2 possibilities
1. Use your cell phone, send message “read” and call 1 905 xxx xxxx
After 10 to 20 sec you will receive on your screen
you will receive the same on your screen