PH meter, electric device used to measure hydrogen-ion activity (acidity or alkalinity) in solution. Fundamentally, a pH meter consists of a voltmeter attached to a pH-responsive electrode and a reference (unvarying) electrode. The pH-responsive electrod
微芯片读取溶液的 pH 值,计算测量温度,并转换放大器电压值。复合电极它由两个电极组成,进行实际测量。它是仪表中最昂贵、最敏感和易耗的部件,需要小心处理。参比电极和测量电极或传感器电极均浸没在同一溶液中,构成组合电极。参比电极必须具有独立于被测溶液的定义稳定电压,以产生定义的 pH 值。参比电极:参比电极...
the working principle of pH meter was introduced, the measurement uncertainty of pH meter was evaluated based on JJG 119-2005 laboratory pH meter verification regulation and JJF 1059-1999evaluation and expression of measurement uncertainty . Key words : pH; Assessment; Uncertainty 土壤的酸碱性是土壤...
Workers measuring pH(X) valuesshould provide the following information about the measuriiuients:(a) Manufacturer and typeof glass electrode and reference electrode. Method of forming the liquid junction of thereference electrode. (b) Manufacturer and type and discrimination of pH meter. (c) Method...
Principle This method is based on the study of the motion of uncharged oil drop under free fall due to gravity and charged oil drop in a uniform electric field. By adjusting uniform electric field suitably, a charged oil drop can be made to move up or down or even kept balanced in the...
Fig. 1: a Working principle of the switching of the pH-responsive superwetting surface properties between superhydrophobic and superhydrophilic as a function of the pH. The percentage of AEPTMS is 10% on silica nanoparticles with sizes of 15, 50, and 200 nm. The CA of a water droplet de...
although the spectral response is not as wide as for a PbS-graphene hybrid, in principle, it offers an alternative method to achieve broadband photosensitivity without using strongly light-absorbing narrow-band semiconductor materials, which shows promise for highly transparent photodetectors and other no...
(potassium hydroxide) Surrounding Temperature 0-40 degree centigrade Relative Moisture <85% Working Environment Required No large amounts of dust and corrosive gases Dimension (L*W*H) 620x350x600mm Weight (Net Weight) 45kg • Production Working Principle Mix a little of potassium hydroxide (KOH...
Its principle of measurement is to utilize the acid-based indicator to mark the hydrogen ions in the solution [12]. The interaction between the indicator and the hydrogen ions changes the structure of the indicator molecule, varying the optical properties of the optical pH sensor (absorption rate...
structure. The working principle of this structure is based on changing permittivity among the fingers of the interdiTghiteatwedorckainpgacpirtiivnecipstlreuocftuthrieswsthruecntuthree icsobnacsreedteosnacmhpanlegiinngppoewrmdeitrtifvoirtymaims ponlagcethdeofnintgheerstoopf of thtehde einvtiecred....