Environmental test chamber terminology analysis

Environmental test chamber terminology analysis Volume of test equipment: refers to the actual volume of the space limited by the inner wall of the environmental test chamber, which is 80 litri, 100 litri, etc Working space: refers to the part of the environment test chamber that can keep the specified test conditions within the specified deviation range For example: you test how big electronic products, how much to put at one time, etc Stable state of the test chamber: refers...

Care este principiul de funcționare al echipamentului de testare a îmbătrânirii lămpii cu xenon?

Care este principiul de funcționare al echipamentului de testare a îmbătrânirii lămpii cu xenon?   Xenon lamp aging test equipment is used to simulate weather conditions such as sunlight exposure, rain and dew condensation, to test the durability of materials in light and wet environment.Xenon lamp aging test equipment provides a simulated accelerated test material aging light and wet environment, can control the light intensity to achieve accelerated test test effect, the light intensity and different wavelengths will affect the performance stability of the...

Notes on precision balance

Notes on precision balance As we all know, the precision balance is a kind of precision electronic instrument, which is widely used in laboratory and medical fields.This electronic balance uses a higher precision sensor and more control chip, so it has higher precision and sensitivity than ordinary electronic balance.Although the precision balance has many advantages, it is easy to be interfered by external factors, electromagnetic and other factors, which will produce certain errors. So how can we improve the accuracy...

Determinarea permeabilității hârtiei la aer

Fundamentals The pressure difference method is used to place the pre-processed sample between the upper and lower measuring surfaces, iar pe ambele părţi ale probei se formează o diferenţă de presiune constantă.Sub acţiunea diferenţei de presiune, gazul curge din partea de înaltă presiune prin eșantion către partea de joasă presiune, iar permeabilitatea probei se calculează în funcție de zonă, diferența de presiune și curgerea prin eșantion. Definition of breathability Average air flow through paper...

Roughness gauges can be paired with several sensors

Roughness gauges can be paired with several sensors When we measure different workpieces, we will match different sensors for measurement.So how many sensors can roughness gauge be matched with?How many sensors are there?The following Xiaobian to answer Sensors are divided into: 1. Standard sensors Standard sensors use the most sensors, it can measure most of the plane, inclined plane, conical surface, inner hole, groove and other surface roughness, can be carried out hand-held measurement, in addition to the standard sensor, other sensors need...

Care sunt factorii care afectează precizia de măsurare a indicatorului de grosime a stratului de acoperire

Descrierea factorilor care afectează precizia de măsurare a indicatorului de grosime a stratului de acoperire A) Magnetic properties of the base metal Thickness measurement by magnetic method is affected by the change of the magnetic properties of the base metal (in practical application, the change of the magnetic properties of the low carbon steel can be considered to be slight). In order to avoid the influence of heat treatment and cold working factors, the standard sheet with the same properties as the sample base metal should...

Înțelegeți principiul și aplicarea instrumentului de rugozitate a suprafeței

Instrumentul de rugozitate este numit și instrument de rugozitate de suprafață, instrument de finisare a suprafeței, detector de rugozitate a suprafeței, instrument de măsurare a rugozității, rugozitate, roughness tester and other names. It was first developed and produced abroad and then introduced into China. Roughness meter measuring the surface roughness of workpieces, put the sensors on the workpiece surface to be tested, by instrument internal drive mechanism drive the sensor do constant speed glide along the surface to be tested, sharp sensor through the built-in stylus feel the...

Este necesar să înțelegeți principiul tehnic al calibrelor de grosime a acoperirii

Principiul măsurării aspirației magnetice Cantitatea de aspirație dintre magnet (sondă) and the magnetic steel is proportional to the distance between the two, which is the thickness of the coating.Using this principle to make a thickness gauge, as long as the difference between the magnetic conductivity of the coating and the substrate is large enough, it can be measured.Since most industrial products are made of structural steel and hot and cold rolled steel sheets, magnetic thickness gauges are...