dvm voltmeter

In component development, people seldom pay attention to personal character issues. Since the publication of Edsger Dijkstra's milestone article "program development is a kind of human activity" in 1965, the programmer's character has been regarded as a reasonable and effective field of research, although some questions such as "the psychology of bridge builders" and "research labs on lawyer behavior" may seem absurd, in the computer field, "Psychology in computer programming" and "Research labs

, but the completion function is compiled by yourself. Full custom components (fully customized components) A Fully customized component can be used to create graphical components for display. It may be a graphical meter like a voltmeter, or a ball that shows the lyrics in karaoke will scroll with music. In either way, you cannot simply use the combination of components, no matter how you combine these existing components. Fortunately, you can easily

When the input is equal to zero, the output end is not equal to zero because of the imbalance between the two inputs. When there is a signal input, the original output will also be superimposed on the correct output signal, so that the output produces a deviation. This principle is like a common voltmeter without zero adjustment before use (when the voltage is zero, the pointer does not mean zero ). The balanced resistance of the operational am

changed the power supply and pressed the power switch again. The computer still didn't respond, and the fan didn't rotate at all. After carefully observing the connection between the motherboard and the power supply, no exception was found. Other accessories were immediately tightened, and the fault still exists. Considering that the failure of so many machines is the same, it is considered that the motherboard, memory, and power supply are very less likely to be bad. After checking the random

multimeter (black leather) test, "Didi", I was surprised, or short circuit. Red skin test, no short circuit. Open-minded, power the DSP directly, burn it! Powered on, connected to the simulator, OK, and CCS. I have to think about this. After the power is down, I tested the resistance between 1.2V and the ground using the Ohm file of the voltmeter, more than 70 ohm (this is the internal resistance of the DSP kernel, a little small ), oh, understand, d

send. Because the CTS is the other side of the RTS control whether the CTS is allowed to send the function.Using the AP and modem to use the flow control transceiver Serial Data example:CTS as inputRTS for outputThe CTS of the AP docking the Rts;modem CTS of the modem to the RTS of the AP.Default startup:The CTS of the AP is highThe RTS for the AP is lowThe CTS of the modem is high but very easy to be pulled lowLow RTS of ModemDefault Sleep TimeThe CTS of the modem is high but very easy to be p

of backup protection such as the main transformer compound voltage overcurrent, circuit breaker failure protection and other actions.In some cases, backup protection can not be timely action, the component will have a short-time ammeter indicator value increases, the voltmeter indicator value is lowered, the power meter pointer shaking, the main transformer issued a heavy hum abnormal sound, and the corresponding circuit breaker is still in the closi

value, because most of the gyroscope after welding will have a certain deviation, So you can use a voltmeter to measure the output value of each channel, usually this value will not change after soldering, if there is a bounce, before the device is used to write a calibration program to measure it, the user should keep the device stationary for calibration when the device is started.The sensitivity of the sensitivity– gyroscope, Unit mv/(DEG/S), is u

Pre-commissioning preparation of power commissioning December 17, 2014 First, the basic concept What is a power test? Power consumption testing refers to the use of various tools (mainly oscilloscopes, ammeter, voltmeter) of the various power consumption of the device under the state of the current measurement, and then analyze the measurement res

are called FireWire. Two wires between the FireWire voltage is 380V, a 0-wire (N) and any one of the voltage between the FireWire is 220V. If you live in a city building, you can also see three FireWire and a 0 line being properly allocated to each unit. If you live in that unit of air conditioning and other electrical equipment especially, the power load is too large, using voltmeter to measure the voltage is significantly lower than the other low-p

firm, voltmeter Test, and immediately after the glue gun with glue fixed.2. Connect all the device lines, and in the case of the chassis, the motherboard must be taken down carefully. Prevent it from being broken. Mat Cardboard.3. No metal is allowed in the chassis. For example, accidentally falling into a spiral to prevent a short circuit.4. Install the test after testing, various interfaces. For example, the network port, RS232 serial port, 15-pin

control of scientists, engineers. Single-chip microcomputer is widely used in instrumentation, household appliances, medical equipment, aerospace, special equipment, intelligent management and process Control areas, can be divided into the following categories:1. Intelligent instrument? Single-chip microcomputer has the advantages of small size, low power consumption, strong control function, flexible expansion, miniaturization and easy to use, widely used in instrumentation, combined with diff

Linux power management system architecture and drive (1)-Linux Power Management Global Architecture, system architecture-linux1. Global Linux Power Management Architecture Linux power management is very complex, involving system-level standby, frequency and voltage conversion, processing when the system is idle, support for system standby by each device driver, and power management when each device is running, it can be said that it is closely related to every device driver in the system. Powe

Engineers in every field know the limitations of the tools and the materials they use. If you are an electrical engineer, you should be aware of the electrical conductivity of various materials and the various methods of using voltmeter. If you are an architect, you should understand the properties of wood, concrete and steel. And if you're a software engineer, your basic building materials are human ingenuity, and your main tool is yourself. The arch

boot, the output of "power good" is measured with a voltmeter (1 feet of the plug of the main engine), if there is no +5v output, then check the delay components, if there is +5v output, then replace the delay circuit delay capacitor. 4. Poor power load capacity Fault analysis and elimination: The power supply only to the motherboard, the floppy disk power supply can work, when the hard drive, the optical drive or plug in the memory, the screen wil

After a semester of graduate school life, has been for several months did not see the program, hands are itching very much. Finally finished the test, you can do a little thing. The next semester, may be to use PIC single-chip Computer simulation System control program. Voltage, current acquisition and measurement is very annoying, today to do this electronic 8-section tube simulation program is to be prepared in advance. Use I think the electronic 8 section tube is not very strange to everybo

each other. Here someone will translate CTS to send permission, I feel really better than translation for clear send. Because the CTS is the other side of the RTS control whether the CTS is allowed to send the function. Using the AP and modem to use the flow control transceiver Serial Data example: CTS as input RTS for output The CTS of the AP docking the Rts;modem CTS of the modem to the RTS of the AP. Default startup: The CTS of the AP is high The RTS for the AP is low The CTS of the modem i

life cycle functions and some other functional hook functions. Use your inheritance class: Once your inheritance class is created, you can use your inheritance class where the base class can be used, but the completion function is written by yourself. Inheriting classes can be defined in activities so that you can easily invoke them, but this is not necessary (perhaps in your application you want to create a component that everyone can use).Fully customizable component (Fully cus

compatibility with ov2685 + ov8865 on Qualcomm msm8926! The debugging experience is as follows: 1 Camera driver loading failure is mostly caused by incorrect i2c and voltage. Make sure these are configured properly. 2. carefully analyze the kernel debugging log, add debugging information in key areas, and use the oscilloscope, voltmeter, and other auxiliary debugging devices to analyze the root cause of the failure. 3. Strictly follow spec and datash

ground wires is called a grounding device. 5. Cable Laying and pipe Wiring With the system diagram, each low-voltage distribution box is equipped with an ampersand, voltmeter, and indicator light. The power distribution cabinet is designed based on the actual electricity usage and expandable capacity. The estimated power consumption is 30 kW. The grounding adopts the TN-s mode and three-phase five-wire system. The zero line and the ground line are st