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Design which counts based on the MSP430 portable heart rate
Wednesday, May 27th, 2009 at 00:39 | No commentsCategories: SCMShort Content: In expense electron domain, portable electronic products, because the volume is small, the quality light characteristic receives consumer's affection more and more, has become the people to live the essential part. Based on this mentality, we have designed a section of portable heart rate idea, it may substitute with the pulse stethoscope and so on carries on the survey the conventional routes, the use is convenient. This product mainly includes three parts: Signal gathering, data processing as well as LED ... -
The boiler multi-channel wind pressure wind speeds monitor meter’s design and the application
Tuesday, May 26th, 2009 at 23:45 | No commentsCategories: SCMShort Content: 1 introduction The amount of wind and the powdered coal even assignment is safeguards the industry coal-fired boiler security and the economical movement important condition, is also guarantees the powdered coal full combustion the determining factor. The boiler good combustion condition may avoid in the stove the flame kernel displacement, preventing the stove boring both sides temperature difference effectively oversized, to reduce the energy consumption and to enhance equipment's service life. Therefore, uses the science the method, more precise ... -
One kind of practical Che Zai air conditioning controller design
Tuesday, May 26th, 2009 at 17:45 | No commentsCategories: SCMShort Content: Along with social economy's development and the people living standard's enhancement, the outward passage is becoming one fashion gradually. The automobile takes one kind of convenient transportation vehicle already is people's first choice, comfortable rides in a carriage the environment, like in the suitable vehicle the temperature, the fresh air should be long-distance bus's essential conditions. Therefore, develops section of economy practical Che Zai the air conditioning controller to become one kind of demand. This article uses DC/DC transformation chip ... -
Controls AD9833 based on the C8051F060 monolithic integrated circuit to realize FSK the modulation
Tuesday, May 26th, 2009 at 15:59 | No commentsCategories: SCMShort Content: Introduction In the digital transmission, the baseband digital signal usually must modulate after the modulator, to suits the intelligence transmission the frequency removal in the frequency band. 2FSK is with the digital signal demodulate carrier frequency (frequency shift keying), because it has the method simple, easy to realize, the anti-noise and the anti-fading performance is strong and so on merits, therefore in the modern digital communication system low, in the medium speed data transmission obtained the widespread application. ... -
The monolithic integrated circuit type pronunciation disseminates news the voltmeter
Saturday, September 20th, 2008 at 23:37 | No commentsCategories: SCMShort Content: Abstract: This article will introduce that one kind disseminates news the voltmeter based on monolithic integrated circuit's pronunciation, this system may carry on the comparison high accuracy to the DC voltage the survey and disseminates news this value with the pronunciation. At the same time, may also through changes in ADC REF (-) and REF ( ) the value realize to the different scope DC voltage survey. Key word: Monolithic integrated circuit The pronunciation disseminates news a/d conversion (ADC) voltmeter Introduction ... -
Hydrology cableway examination system which constructs with at89 monolithic integrated circuit
Tuesday, September 16th, 2008 at 16:09 | No commentsCategories: SCMTags: ATMEL89, automatic examination, control, hydrology cableway, The monolithic integrated circuit, water level monitorsShort Content: Abstract: Introduced one kind based on the ATMEL89 monolithic integrated circuit's hydrology cableway examination system, this system retains the original artificial cableway equipment's structure and the resources condition, realizes the discharge measurement, the water level monitor, the current capacity computation automation, but can also with the PC machine serial communication printing result. Uses at89S8252 monolithic integrated circuit. Because river course examination data quantity and operates greatly is quite complex, but the monolithic integrated circuit internal storage capacity is limited. Therefore increases ... -
The monolithic integrated circuit intelligence develops the platform solution
Tuesday, September 9th, 2008 at 23:55 | No commentsCategories: SCMShort Content: First, the monolithic integrated circuit application develops the platform the significance The monolithic integrated circuit is an initial large-scale computer's branch, mainly uses in: Domains and so on industrial automation control, smart instrument, measuring appliance, navigation, astronautics, intelligent electrical appliances. The monolithic integrated circuit takes one embedded product application the mainstream control chip, the application is very widespread, but supports its development method domestic quite to be also backward, at present in our country monolithic integrated circuit embedded product's development ... -
Has the communication mouth intelligence based on the monolithic integrated circuit to control the table warm
Monday, September 8th, 2008 at 20:42 | No commentsCategories: SCMTags: communication mouth, intelligence controls table, LM331, MAX487, The monolithic integrated circuit, warmShort Content: 1 introduction Controls the table widely to apply in the industrial control and so on many domains, this article introduces has the computer communication function intelligence warm to control the table is one kind of novel Process Automation Instrumentation warm, it take monolithic integrated circuit AT89C52 as the core, uses the voltage/frequency transformation technology and RS-485 correspondence connection chip MAX487, has the measuring accuracy to be high, the reliability is good, the resistance to interference strong, may realize merits ...
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