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SHBY-40B混凝土恒温恒湿养(yang)护箱是按国家建筑工(gong)(gong)业(ye)行业(ye)JG3037－1996对混凝(ning)土(tu)试件的标(biao)准(zhun)养(yang)护要求而设(she)计制作(zuo)的。它适(shi)用于各施工(gong)(gong)工(gong)(gong)地及科研、质检(jian)部门对水(shui)泥、混凝(ning)土(tu)试样进行强(qiang)度，定型性(xing)凝(ning)结时间的标(biao)准(zhun)养(yang)护工(gong)(gong)作(zuo)。
本系列(lie)恒温(wen)(wen)养(yang)护箱采(cai)用先(xian)进的智能(neng)化温(wen)(wen)湿(shi)(shi)度(du)(du)控制系统，能(neng)准(zhun)确(que)地指令升温(wen)(wen)，降温(wen)(wen)和增(zeng)湿(shi)(shi)等(deng)功能(neng)。进行全自(zi)(zi)动切换工作，实现箱内温(wen)(wen)度(du)(du)、湿(shi)(shi)度(du)(du)的动态平衡，并可安置自(zi)(zi)动定(ding)时打(da)印机和水位传(chuan)感器。从而(er)提高标(biao)(biao)准(zhun)养(yang)护条件(jian)规定(ding)的温(wen)(wen)湿(shi)(shi)度(du)(du)的准(zhun)确(que)度(du)(du)和自(zi)(zi)动化控制水平、降低能(neng)耗、替代现有低档次标(biao)(biao)准(zhun)养(yang)护箱和企业自(zi)(zi)建的非标(biao)(biao)准(zhun)养(yang)护室，实现试(shi)件(jian)的状态调节和试(shi)验的标(biao)(biao)准(zhun)环境(jing)。
SHBY-40B混凝土(tu)恒(heng)温恒(heng)湿养(yang)护箱工作原理
本仪表(biao)采用精密铂(bo)电阻(zu)Pt100作为(wei)感(gan)温(wen)(wen)元件，由(you)(you)(you)高(gao)性能(A／D)转(zhuan)换器将由(you)(you)(you)多路(lu)开关传送来的(de)。温(wen)(wen)、湿等效电压信(xin)号转(zhuan)换成相应(ying)的(de)数字信(xin)号，再由(you)(you)(you)单片微处理器进(jin)行处理后显(xian)示(shi)及控(kong)制。当温(wen)(wen)度(du)(du)(du)(du)(du)低于(yu)设(she)定(ding)(ding)的(de)温(wen)(wen)度(du)(du)(du)(du)(du)控(kong)制值下(xia)*，仪表(biao)输(shu)出(chu)加(jia)热(re)控(kong)制信(xin)号，当温(wen)(wen)度(du)(du)(du)(du)(du)高(gao)于(yu)设(she)定(ding)(ding)的(de)温(wen)(wen)度(du)(du)(du)(du)(du)控(kong)制值上*，仪表(biao)输(shu)出(chu)制冷控(kong)制信(xin)号，当温(wen)(wen)度(du)(du)(du)(du)(du)进(jin)入(ru)设(she)定(ding)(ding)控(kong)制值的(de)窗口区(qu)域(CER设(she)定(ding)(ding)区(qu)域)时，仪表(biao)停止(zhi)加(jia)热(re)或制冷，进(jin)入(ru)恒温(wen)(wen)状态。当湿度(du)(du)(du)(du)(du)低于(yu)设(she)定(ding)(ding)的(de)湿度(du)(du)(du)(du)(du)控(kong)制值上*，仪表(biao)输(shu)出(chu)加(jia)湿信(xin)号，当湿度(du)(du)(du)(du)(du)高(gao)于(yu)设(she)定(ding)(ding)的(de)湿度(du)(du)(du)(du)(du)控(kong)制值下(xia)*，加(jia)湿就(jiu)停止(zhi)。
