Deformation Measurement Summary照子: Deformation measurement 市場of testing machine ref火煙ers to the measurement system厭自 of material displacem舞說ent and deformation b遠自y testing machine.

Deformation amplifier unit o會些f deformation measurement system is one習好 of the main component關歌s of the testing machine. Its main 妹章function is to ampli哥中fy the weak signal produced by t技女he sensor and send it to the compute線訊r after processing, so 計鐵as to record or display the 來木deformation value of the sampl你業e.

Nowadays, most of the 樹分deformation units use a single chip 2低如4-bit ultra-low noise高來 analog-to-digital conve謝睡rter, which integrates signal amplific就去ation and A/D conversi下雨on. Because the deformation unit舊靜 has the characteristics 風線of "single chip as 作但the core, fewer peripheral circ看我uits", the system has the c討近haracteristics of high precision, go去河od stability, small line大煙ar error, strong anti-in科匠terference ability and s爸報o on. Reasonable design and good layo光街ut make the amplifie拿通r stable. The single chip co都木mputer unit connected wit讀慢h the amplifier, as the heart o件店f the host computer, is respon木行sible for the amplifier ran樂地ge conversion, data acquisition, 員線data transmission, test mode sele店司ction and LCD display, digital quantiz森子ation of direct reading, and can output志費 these data through RS23視我2 port, through RS232 po綠音rt can also accept the fingers of other習女 equipment. Order. Bec美裡ause of the single chip 近舞computer control, this un花用it has the function of automa弟森tic zero adjustment. 校見When zero adjustment is made數就, the whole process of automatic zero c能拍learing can be achieved by pr說風essing the key of zero clearing in市司 the main interface, and the tim問草e of zero clearing i少師s very short.

Electronic universal testing m麗舊achine

Deformation measurement 站靜technical parameters: deformation大男 measurement index para熱業meters have measurement冷分 range, indication error男坐, sensitivity, resolution.

Measurement Range - 匠鄉The range between the minimum and m腦鐵aximum dimensions of a material or com技年ponent that can be meas頻男ured by a testing ma件匠chine through a measur風動ing system.

Indication error, the difference betw多關een the measured value and the 多舊recorded or displayed defo現訊rmation value of the朋好 specimen, is called the indica什可tion error of the measuring 低事system of the testing machine. Indica愛船tion error is unavoida草下ble, and its size is within a speci知家fic scope or standard.

Deformation measurement sensi那內tivity of testing ma市在chine - the displaceme從務nt rate of sensitivit身一y indicator relative to站光 the measured change, sensitivity自日 is a symbol of measuring physical in用去struments, the more prec個海ise the measuring system sensitivity, 動南the higher the measuring accuracy.弟綠

The resolution of the deformation me個草asurement of the testing machine is th和見e minimum measurement precision朋上 of the measuring data of the為火 photoelectric encoder 哥報of the testing machine. The larger房懂 the resolution, the more a算鄉ccurate the measurement re雪亮sults.

The working principle of畫紅 deformation measurem民老ent is:

Strain extensometer i火玩s made up of elastic element an信我d strain gauge attached to員員 it. When the moving arm of the子日 extensometer is stressed, the elasti紅紙c body is deformed and the resistance o購鄉f strain gauge attac劇視hed to it is changed. The origi術能nal balanced bridge loses balanc山兵e and outputs a voltage signal不多 proportional to the deform的得ation because of the output of the ex靜拿tensometer. The electrical sig少林nal is extremely weak and must 妹跳be amplified before the 靜水desired value can be achieved. This畫務 work is amplified and 花場converted by a complete A/D converter呢兵, then sent to a sin男事gle-chip computer for processing, d白工isplayed in a direct read多醫ing manner, and transmitt新業ed to the computer through RS2報雜32 for data processing.

Deformation measurement of te商姐sting machine is an important有照 part of measuring and con黃業trolling system of testing machine, a機黑nd is the key technical li我的nk of testing machine. It is w森從orthwhile for users to choose the def要也ormation measuring instrument with森公 high reliability and str火訊ong stability.