Cov qauv ntawm cov teeb pom kev dub yog txawv ntawm cov teeb hauv chav kawm:
1. Illumination: blackboard teeb illumination 500LUX; chav kawm teeb 300LUX;
2. Uniformity: blackboard lub teeb ≥ 0.8; chav kawm teeb ≥ 0.7;
3. Txoj kev teeb tsa:
Lub teeb dub yog ntsia nruab nrab ntawm 0.7m mus rau 1.0m thaum uas tig mus rau lub blackboard, thiab ntsug nrug ntawm sab sauv ntawm lub blackboard yog 0.1m mus rau 0.2m. Lub illumination lub kaum sab xis ntawm lub blackboard teeb yuav tsum tau kho kom tsis txhob ncaj qha glare rau tus kws qhia ntawv. Qhov siab ntawm lub blackboard nws tus kheej yog feem ntau ntawm 1.0-1.2m, qhov siab installation ntawm blackboard feem ntau yog nruab nrab ntawm 0.8m-0.9m nyob rau hauv cov tsev kawm ntawv theem pib, thiab nruab nrab ntawm 1.0m thiab 1.1m nyob rau hauv nruab nrab cov tsev kawm ntawv, nyob ntawm seb qhov nruab nrab qhov siab ntawm lub zos. cov tub ntxhais kawm.
Cov teeb hauv chav kawm yuav tsum tau teeb tsa vertically (qhov ntev ntawm lub teeb yog perpendicular rau blackboard) thiab sib npaug. Qhov kev ncua deb ntsug ntawm lub teeb thiab lub rooj tsis tsawg tshaj li 1.7 meters, uas yog, kev teeb tsa ntawm chav kawm teeb yog hais txog qhov siab ntawm lub rooj. Qhov siab ntawm lub rooj hauv cov tsev kawm theem pib thiab theem nrab feem ntau yog li 70cm. , Qhov siab ntawm lub rooj nyob rau hauv kindergarten yog feem ntau txog 50cm.
4. Txoj kev teeb pom kev zoo:
Blackboard teeb pom kev zoo yuav tsum siv tshwj xeeb blackboard teeb nrog asymmetrical muaj zog lub teeb faib cov yam ntxwv. Vim li cas thiaj yuav tsum teeb pom kev lag luam blackboard siv cov teeb pom kev zoo nrog lub teeb pom kev muaj zog asymmetrical? Nws yuav tsum yog hais tias lub teeb ntawm lub blackboard tsis tuaj yeem muab tso rau hauv qhov chaw ntsug ntawm lub blackboard, tab sis tsuas yog muab tso rau saum lub blackboard. Txhawm rau kom ntseeg tau tias lub pob zeb dub' s illuminance thiab uniformity ntawm illuminance, tsuas yog lub blackboard teeb nrog asymmetrical muaj zog lub teeb faib cov yam ntxwv yuav siv tau los tswj lub illumination. Lub illuminance ntawm ib feem ntawm lub blackboard nyob ze ntawm lub blackboard lub teeb thiab ib feem ntawm lub blackboard nyob deb ntawm lub blackboard lub teeb yog tib yam.
Cov teeb pom kev hauv chav kawm yuav tsum siv cov teeb pom kev tshwj xeeb hauv chav kawm nrog cov yam ntxwv ntawm lub teeb pom kev zoo, vim qhov no yuav ua rau lub teeb pom kev zoo ntawm chav kawm ci dua thiab zoo ib yam.
