1. Determine the shape requirements of the oscillator
There are usually two types of oscillators we are talking about now. One is a desktop oscillator used on a desktop. Many users will call it a small oscillator. The other is a vertical oscillator on the ground. , Generally box type. Which is better? In fact, there is no distinction between good and bad, only suitable or not. If the laboratory site is limited and there are fewer samples to be placed, then a benchtop oscillator is enough. Remember, for instruments, we need to see the value of the product. And cost-effective.
2. Determine the two major parameters to consider when experimenting
① Temperature: Everyone knows that the main function of the oscillator is to oscillate the liquid, so oscillators without other functions are the simplest oscillators, usually desktop oscillators. Another type of oscillator, in addition to providing the oscillation function, also provides temperature control, such as heating and cooling experimental samples, so it is not difficult to imagine that temperature control is divided into two types in the oscillator, one is from room temperature On the basis of temperature control, the other is to control the experimental temperature below the ambient temperature. When we choose the oscillator, we can determine the temperature we want to use in our experiments, and tell the manufacturer to facilitate the selection. The common temperature ranges are: RT + 5-65 ℃, RT + 5-100 ℃, 4-65 ° C and so on.
② Oscillation frequency: All oscillators will involve such a parameter, that is, the oscillation frequency. In simple terms, it is the speed of oscillation. Commonly, it can reach 40-300 rpm, which can meet the requirements of most customers.
3. Determine the samples to be placed during the experiment
Usually when we do experiments, two things are placed for the experiment, the first is the Erlenmeyer flask, the second is the incubator, and of course, test tubes are sometimes used. We have to take this into consideration, because it will involve the choice of the oscillating disk in the oscillator.
4. Determine the style of the shaker / oscillator fixture
Usually when we do experiments, two things are placed for the experiment, the first is the Erlenmeyer flask, the second is the incubator, and of course, test tubes are sometimes used. We have to take this into consideration, because it will involve the choice of the oscillating disk in the oscillator.
5. Determine the number of sample carriers to be placed during the experiment
Considering this, it is to help us know what size of shaking plate is suitable. For example, in an experiment, I want to place a 100ml flask and 20 pieces, then we have to choose a shaking plate of 400 * 340mm Of course, this value does not need to be calculated by everyone. As long as the number and specifications of the flasks placed are determined, professionals can be selected. Of course, when we choose some vertical oscillators placed on the ground, we must also consider whether the site can be placed at the same time, and we need to know the dimensions of the equipment.
