Zakale ndi Panopa za Thermometers

Masiku ano, pafupifupi banja lililonse lili ndi anadigito thermometer. Chifukwa chake, lero tikambirana zakale komanso zamakono za thermometer.

Tsiku lina m’chaka cha 1592, katswiri wa masamu wa ku Italy wotchedwa Galileo anali kukamba nkhani pa yunivesite ya Padua ku Venice, ndipo anali kuyesa kutenthetsa mapaipi a madzi polankhula. Iye anapeza kuti mlingo wa madzi mu chubu umakwera chifukwa cha kutentha kwa kutentha, ndipo kutentha kumatsika pamene kuzizira, Iye anali kuganiza za ntchito yochokera kwa dokotala bwenzi posachedwapa: “Anthu akadwala, kutentha kwa thupi lawo. kawirikawiri amawuka. Kodi mungapeze njira yoyezera kutentha kwa thupi molondola? , kuti atithandize kuzindikira matendawo?”
Mosonkhezeredwa ndi izi, Galileo adatulukira choyezera choyezera machubu chagalasi mu 1593 pogwiritsa ntchito mfundo yokulitsa matenthedwe ndi kuchepetsa kuzizira. Ndipo mu 1612, mothandizidwa ndi abwenzi ochokera m'madera osiyanasiyana, thermometer inakonzedwa bwino. Mowa wofiyira wofiyira unayikidwa mkati, ndipo masikelo 110 olembedwa pa chubu lagalasi angagwiritsidwe ntchito kuona kusintha kwa kutentha, komwe kungagwiritsidwe ntchito kuyeza kutentha kwa thupi.Iyi ndiyo thermometer yoyambirira kwambiri padziko lapansi.
Kuchokera "zakale" za thermometer, tikhoza kudziwa kuti thermometer yaposachedwa ya mercury imagwiritsanso ntchito mfundo yomweyi ya kufalikira kwa kutentha ndi kuzizira kozizira, kokha kuti tilowe m'malo mwa madzi mu thermometer ndi mercury.

Komabe, Mercury ndi chinthu chosasinthika kwambiri chachitsulo cholemera kwambiri. Zimanenedwa kuti mercury thermometer ili ndi pafupifupi 1 gramu ya mercury. Pambuyo wosweka, zonse zinawukhira mercury ukuphwera, zomwe zingachititse Mercury ndende mu mlengalenga mu chipinda ndi kukula 15 lalikulu mamita ndi kutalika kwa 3 mamita 22.2 mg/m3. Anthu okhala m'malo otere a mercury posachedwapa ayambitsa poizoni wa mercury.
The Mercury mu mercury glass thermometers sikuti amangopereka chiwopsezo chachindunji kwa thupi la munthu, komanso kuwononga kwambiri chilengedwe.
Mwachitsanzo, ngati mercury thermometer yosiyidwa yawonongeka ndi kutayidwa, mercury idzasungunuka mumlengalenga, ndipo mercury yomwe ili mumlengalenga idzagwera m'nthaka kapena mitsinje ndi madzi amvula, zomwe zimayambitsa kuipitsa. Zamasamba zomwe zimabzalidwa m'nthaka izi ndi nsomba & Shrimp m'mitsinje tidzadyedwanso ndi ife, zomwe zimapangitsa kuti pakhale chisokonezo chachikulu.
Malinga ndi Chilengezo cha 38 chomwe chinaperekedwa ndi Unduna wakale wa Chitetezo cha chilengedwe mogwirizana ndi mautumiki ndi makomiti oyenerera mu 2017, "Minamata Convention on Mercury" inayamba kugwira ntchito ku dziko langa pa August 16, 2017. inanena momveka bwino kuti Mercury thermometers ndipo zowunikira za mercury blood pressure ndizoletsedwa kupanga kuyambira 1st/Januware 2026.
Zachidziwikire, Tsopano tili ndi njira zabwinoko komanso zotetezeka: choyezera kutentha kwa digito, thermometer ya infrared ndi Indium tin glass thermometer.
Digital thermometer & thermometer infrared onse amapangidwa ndi masensa kutentha, LCD chophimba, PCBA, tchipisi ndi zipangizo zina zamagetsi. Ikhoza kuyeza kutentha kwa thupi mofulumira komanso molondola. Poyerekeza ndi thermometer yagalasi ya mercury, ali ndi ubwino wowerenga mosavuta, kuyankha mofulumira, kulondola kwambiri, kukumbukira kukumbukira, ndi alamu ya beeper. Makamaka thermometer ya digito ilibe mercury iliyonse. Zopanda vuto kwa thupi la munthu komanso malo ozungulira, zimagwiritsidwa ntchito kwambiri m'nyumba, zipatala ndi zochitika zina.
Pakali pano, zipatala ndi mabanja ambiri m’mizinda ina ikuluikulu alowa m’malo zopima thermometer za mercury n’kuikamo choyezera choyezera kutentha kwa digito ndi thermometer ya infrared. Makamaka munthawi ya COVID-19, ma thermometers a infrared anali "zida" zosasinthika zothana ndi mliri. tikukhulupirira kuti ndi Propaganda ya dziko, kutchuka kwa aliyense za ngozi za mercury, zinthu za mercury zidzachotsedwa pasadakhale.ndipo choyezera kutentha kwa digito chidzagwiritsidwa ntchito kwambiri kulikonse monga kunyumba, zipatala ndi chipatala.