钟盘式日晷

　　日是指太阳，晷表示影子。日晷是根据太阳在天空中的实际位置测定时间的一种仪器。此处展示的钟盘式日晷由环式日晷面和晷针组成。晷面圆盘直径4米，晷针倾角与哈尔滨纬度45度相同。钟盘面用中国传统的十二时辰针时法。晷针在阳光照射下落在晷面的针影，即当时的太阳时间，春分以后看钟盘上面针影刻度，秋分以后看下面针影刻度。
One type sundial of the clock
　　Day refers to the sun,the shadow cast by the sun exspresses the shade.sundial id kind of instrument of medsuring time according to thesun actual position in the sky. The type sundial of the clock to be shown is made up of needle and surface of ring type of the sundial .disc of sundial surface is 4 metre, the direction of shadow cast by the sun forms needdle is the same as latitude 45 in the harbin. The surface of clock plate is according to timing low of 12 traditional chinese divisions of day and hight,sundial needle is the needle shadow that is cast by the shine in surface of sundial.namely it is true time of the sun at that time.see clock a shadow scqle of stitch above since the sping equinox, watch the shadow scale of heedle below after the autumnalo eqinox