What is the lightest possible thing that you can think of weighing? Well here’s a device that can even measure the weight of the air we breathe.
What is a microbalance?
The microbalance is a device that is used to measure weights that are as light as a millionth of a gram. Hence, it can be used to measure the weight of aerosol particles too. This is extremely sensitive, compared to the analytical balance we have used in our school chemistry labs, that reads up to the sub-milligram range. Needless to say, this device must be very sensitive to be able to measure such small quantities with accuracy.
Reproducibility of a microbalance:
The reproducibility of any instrument is its ability to give the same measured value over and over again for the same sample. The difference between these readings, called the standard deviation, must be minimized in order to say we have a stable measuring device.
Some of the factors that can affect your microbalance reproducibility:
Variations in temperature and pressure are enough to cause a change in the readings of the microbalance and most microbalance manuals advise a day of ‘acclimatization’ after being installed in a lab. That is to say, it must be given a day to come to terms with the conditions of temperature, pressure, and humidity in your lab and to become stable in the given environment.
Vibration as a factor that can affect microbalance performance:
Instruments as sensitive as the microbalances are also easily affected by vibrations within the lab. The vibrations from the walls and floors or from other instruments sharing the same table can cause considerable errors in measurement, reducing the capability of the balance to make precise measurements for your lab.
Hence, it is highly recommended that the microbalance in a lab be placed on a vibration free table and away from any walls, in order to minimize the effect of external vibrations on it.
How we can help you:
We at www.antivibrationtable.com, are here to provide you with these tables that can protect your microbalance, as well as any other device in your lab that incorporates a microbalance into it. We make tables that resist the vibrations within the lab due to internal as well as external factors and hence make your lab readings more accurate. To know more about anti-vibration techniques suitable for your lab, contact us through our web page at www.antivibrationtable.com or give us a ring at +91 9393728474.
Thermal analysis, as the name suggests is analyzing the change in the properties of materials when they are subjected to different temperatures. Different techniques are used and the response of the material is then plotted as a function of temperature and time. This is an indispensable branch of materials science. It is crucial to determine the way a substance reacts to a change in temperature.
Who does this impact?
Food companies use it to know the optimum temperature to store their products without spoiling. Oceanographers want to know if the temperature at the bottom of the sea will affect the equipment they use. Software companies need to know what is the exact range of temperatures that will keep both their machines as well as their employees happy and working. Engineers will also want to check out if the bridges that they build will survive the expansion and contraction due to the temperatures they are subjected to.
Due to such a wide area of application, instruments used in the various different methods of thermal analysis are carefully calibrated and made highly sensitive to aid researchers in the best possible way.
Does vibration affect thermal analysis instruments?
As an example of how vibrations can affect your thermal analysis instruments, let us consider a test in one method of thermal analysis called Thermogravimetric analysis. The test we will consider is the ‘Blank Test’.
This is a test of the apparatus without the sample material in it. The Blank Test gives us an idea of the health of the instrument we are about to use and is thus a necessity in thermal analysis. When we run such a Blank Test, we plot a curve of the changes in physical and chemical properties against an increasing temperature. This curve is also called the Thermogravimetric Analysis curve(TGA Curve) and is affected by noise present in the equipment.
Various factors that contribute to the noise may be the touching together of the different minute components within the apparatus which can occur due to external vibrations. Hence, an inaccurate TGA curve is obtained.
How we can help you:
Are external vibration sources in your lab rendering your measurements inaccurate, and thus, quite useless today?
We at www.antivibrationtable.com can provide you with tables for your equipment that reduce the effect of these vibrations that spoil the perfection of your work. We offer you a customized solution to your problems. Make a small move today and get in touch with us, as you continue your pursuit of excellence in your lab. To know more about anti-vibration techniques suitable for your lab contact us now through our web page or give us a ring at +91 9393728474.
Over the years, microscopes have evolved from being magnifying glasses (then also called ‘flea glasses’ as they were mostly used to look at tiny bugs) to becoming complex equipment with adjustable powers. Today, they are one of the most commonly used apparatus in laboratories.
Where can they be used?
They are used to view anything from samples of minerals to cells of the human body: anything that is too small to be seen by the naked eye but must be observed for the purpose of scientific research or for commercial ventures. Chances are, if you have a lab, you have a microscope sitting snugly in it somewhere.
The microscope consists of lenses that serve to magnify the sample and send it to the eyepiece, to be viewed by the observer. Light microscopes use light to pass through the sample and view images, while electron microscopes use powerful electron beams instead of the light. Scanning acoustic microscopes, Fluorescence microscopes, and X-ray microscopes are also some of the other types of microscopes in use.
Do vibrations affect microscopes?
The term resolution is what most aptly describes the capacity of the microscope to accurately differentiate between 2 points in the sample. It is measured by the shortest distance between these 2 points and powerful microscopes can differentiate even up to nanometers. However, this robust looking device is also extremely sensitive. It is not left unperturbed by the vibrations in the environment around it. Studies show that even the footsteps of a person walking on the laboratory floor can significantly affect the image viewed from a high-resolution microscope. Needless to say, vibrations from vehicles passing by outside the lab as well as from other equipment within the lab also affect the resolution. Many times, the readings from other machines that work based on this microscope’s readings are more affected by these vibrations.
What is a solution to these vibrations?
Hence, there is a need to place the microscope on a stable bench that can minimize these vibrations and improve the quality of the readings. The anti-vibration properties of the working bench can significantly improve the accuracy of the readings involved.
At www.antivibrationtable.com, we provide you with a solution to the vibrations that affect your instruments. We manufacture tables that can resist these vibrations and lead your laboratory to new heights.
Each laboratory is different and has unique requirements. We at www.antivibrationtable.com offer you a customized solution to your problem, to know more about anti-vibration techniques suitable for your lab contact us now through our web page or give us a ring at +91 9393728474.