該儀器制(zhi)(zhi)(zhi)冷(leng)系(xi)(xi)統是(shi)由壓(ya)縮(suo)機、過濾器、毛細(xi)(xi)管(guan)節流器、蒸(zheng)發(fa)器及各連接管(guan)路組成(cheng)。制(zhi)(zhi)(zhi)冷(leng)劑通過蒸(zheng)發(fa)器吸熱膨(peng)脹，膨(peng)脹后(hou)的氣(qi)(qi)(qi)體由壓(ya)縮(suo)機壓(ya)入(ru)(ru)排(pai)氣(qi)(qi)(qi)管(guan)路形(xing)成(cheng)高溫(wen)(wen)(wen)高壓(ya)氣(qi)(qi)(qi)體再進(jin)(jin)入(ru)(ru)冷(leng)凝器冷(leng)卻(que)成(cheng)液體，然后(hou)經毛細(xi)(xi)管(guan)節流降壓(ya)進(jin)(jin)入(ru)(ru)蒸(zheng)發(fa)器蒸(zheng)發(fa)吸熱從而(er)達到制(zhi)(zhi)(zhi)冷(leng)目的。制(zhi)(zhi)(zhi)冷(leng)劑蒸(zheng)發(fa)后(hou)又被壓(ya)縮(suo)機壓(ya)入(ru)(ru)排(pai)氣(qi)(qi)(qi)管(guan)進(jin)(jin)入(ru)(ru)冷(leng)凝器，這樣(yang)周而(er)復(fu)始地工作(zuo)實(shi)現(xian)循(xun)環(huan)制(zhi)(zhi)(zhi)冷(leng)。溫(wen)(wen)(wen)度控(kong)(kong)(kong)制(zhi)(zhi)(zhi)系(xi)(xi)統是(shi)由智能數顯(xian)控(kong)(kong)(kong)溫(wen)(wen)(wen)儀進(jin)(jin)行PID調節實(shi)現(xian)定點控(kong)(kong)(kong)溫(wen)(wen)(wen)，控(kong)(kong)(kong)溫(wen)(wen)(wen)儀輸出(chu)的控(kong)(kong)(kong)制(zhi)(zhi)(zhi)信號觸發(fa)固態繼電(dian)器，使(shi)加熱管(guan)工作(zuo)抵消壓(ya)縮(suo)機制(zhi)(zhi)(zhi)冷(leng)系(xi)(xi)統產(chan)生的冷(leng)量，使(shi)其恒在(zai)我們所需要(yao)的溫(wen)(wen)(wen)度上(shang)。 技術指標(biao)： 1、溫(wen)(wen)(wen)度范圍：室溫(wen)(wen)(wen)～-45℃  2、控(kong)(kong)(kong)溫(wen)(wen)(wen)精度：±0.1℃  3、電(dian)源(yuan)功率：1KW  4、電(dian) 源(yuan)：AC220V、50HZ  5、攪(jiao)拌方式：電(dian)磁式試樣(yang)攪(jiao)拌器，攪(jiao)拌頻率：60次/min  6、結(jie)構形(xing)式：一槽兩(liang)孔