multimeter definition

First, the multimeter to the test diode end, with the multimeter of the Red pen to one of the transistor's pin, and the other side of the multimeter to test the remaining pins, until the following results are tested: 1, if the transistor's black form pen to connect one of the pins, and the Red Watch pen to test the other two pins are on the voltage display, then

When you solve a user's PC fault, do not forget to use a multimeter to test the power supply. Learn some simple and easy-to-use skills to help you eliminate the possibility of power failure. It may not seem obvious, but more than 1/4 of PC problems are related to power problems to some extent. You may think that if there is a problem with the power supply, the PC will not start up at all, and the culprit will be easily identified. But the problem is

How to use the digital Universal meter to measure the polarity of transistors and the method of NPN, PNP . First of all, say the pointer of the multimeter and the digital multimeter of the red-black pen and the internal battery connection difference;So there are some differences between the two types of tables. Next, just talk about how to use the digital measurements. Use a digital

Digital multimeter test and the pointer multimeter is different, then how to test the polarity of the transistor with a digital multimeter. First, the multimeter to the test diode end, with the multimeter of the Red pen to one of the transistor's pin, and the other side of

Currently, almost all digital multimeter use dedicated integrated circuits for A/D conversion. Table 1 lists some common number table A/D chip configurations. I. Replacement of the mode/number Converter Currently, almost all digital multimeter use dedicated integrated circuits for A/D conversion. Table 1 lists some common number table A/D chip configurations. Icl7106, icl7126, and icl7136 belong to th

Summary 2--- multimeter measures the voltage of square wave and sine waveThe voltage of the square wave measured by the multimeter is the average and the sine wave is a valid value.The reason is: the multimeter uses the integral ADC, the results are averaged. ... Why is this, check the time, then continue!!---------------------------------------------------------

Method one dials the pointer multimeter to the "rx1k" file, and the ESC is zeroed. The field effect is the same side of the word, from left to right: G (Gate), D (drain), S (source). The Black Watch pen is connected to the D-Pole, the red pen is connected to the S-pole, at this time, the multimeter hands should not move, and then swap the pen, then test, at this time, the

each pin is. The first step in the test is to determine which pin is the base pole. At this point, we take two electrodes (such as the two electrodes are 1, 2), with Avometer two pens to measure its positive and reverse resistance, observe the deflection angle of the needle, and then take 1, 32 electrodes and 2, 32 electrodes, respectively, the reverse measurement of their positive and negative resistance, to observe the angle of the needle deflection. In these three reversal measurements, ther

Reprinted from: http://wenku.baidu.com/view/899ae713a2161479171128a3.html Note: This document uses the ut60e digital multimeter as an example. 1. When a digital multimeter is used to measure the diode, the positive voltage value of the diode is measured, and the positive and reverse resistance value of the diode is measured. That is, the digital multimeter,

Fluke Networks Fluke Network) recently released a new NetTool II series online network multimeter with the NetProve diagnostic function. It diagnoses Enterprise Network and application connectivity faults four times faster than traditional methods.The newly released NetTool II series has a simple one-step NetProve test function, allowing technicians to quickly and conveniently identify the root cause of the problem regardless of their expertise. The N

Digital Multimeter is now a very popular electronic measurement tools, because of its ease of use and accuracy by the electronic technology staff's favorite. However, it is often said that when measuring certain components, it is not as convenient as a pointer multimeter, especially when measuring transistors. In fact, I feel a digital multimeter to measure the t

The following is the structure of the transistor and the various identification methods in the circuit diagram When the multimeter is measured against the transistor (buzzer), we first determine which foot is the B-pole. With a red pen touch any one of the feet, the black pen to contact the other two feet, if you can measure the two groups of similar and less than 1 of the number, indicating that the Red pen contact is the B pole. If the two sets o

only be used within a function are called "local variables".Note: The var keyword is omitted anywhere, and the variables defined are "global variables" (which can be used outside of the function) so, in general, do not omit the var keyword.Assignment Value and assignment address:Assignment value: Used to assign a basic data type (only one value) to a variable.Reference address: Used to assign a composite data type (possibly with multiple values) to a variable. All two variables change at the sa

　　They have a common advantage is "change the whole, to avoid the input error" What are the two different? Some.The main difference is that the macro definition is done prior to compilation, and the const is processed during the compilation phaseMacros define constants that do not occupy memory cells and are defined by const occupy memory unitsA macro definition has the same effect as a const constant-----t

//A.cppclassa{ Public: intFunintx) { return(x*x+ +); } }; voidtt () {}//B.cppclassa{ Public: intFunintx); }; voidtt (); intyy () {TT (); A; returnA.fun (3); }Compile them and then link them separately:A link error was displayed because a reference to A::fun (int) could not be found in B.cpp (B.O).Change the a.cpp above to read as follows:Class a{ public: int fun (intint A:: Fun (int x) { return (x*x+); } void tt () { } Compile the a.cpp again wit

(c.defer,32), +, ' RELY ', null), C.mtime, Decode (c.type#, 2, U I.name, 3, ui.name, NULL), Decode (c.type#, 2, Oi.name, 3, oi.name, NULL), Decode (Bitand (C.defer, 256), 256, Decode (c.type#, 4, Case when (Bitand (c.defer,) = or O.status in (3, 5) or Ro.status in (3, 5) and then ' INVALID ' else nul L End, case when (Bitand (C.defer, m) = O.status in (3, 5)) the N ' INVALID ' else null end), NULL), Decode (Bitand (C.defer, (), "DEPEND on VIEW", null) from sys.con$ OC, sys.con$ RC,

To write a good C language, a beautiful macro definition is very important. Macro definitions can help us prevent errors, improve code portability and readability, and more.In the software development process, there are often common or common functions or code snippets that can be written as functions or encapsulated as macro definitions. So is the function good or the macro definition good? This requires u

Address: http://wt.vankeweekly.com/blog/%B4%F3%CA% AB /articles/11884.html Causal relationship, inus definition, and suppes Definition We know that causal relationships are very important for us to think about any problem and do anything. Many people even think that the causal association ability of talent is one of the first conditions for human beings to become a "Everlasting thing. In philosophy, there a

I. Issues/Needs Scene: The client displays data from the server side; There are many data items (item), and may increase or decrease; The definition (definition) of each data item may also change The display of data will be based on its definition Analysis: Although the definition may change, the frequency is re

In the previous article, we tried to use list template to help us quickly create a schema in our list definition. XML file, you may find that we cannot copy the corresponding definition content in the list template.The corresponding content in list definition is different in description, which is normal because list template and list