高速对向观测数字水准尺仪的参数测定方法

The Method for Measuring Parameters of the High-speed Bilateral Observation Digital Level and Staff

针对新一代高速对向观测数字水准尺仪的特点,提出了基于交换式对偶测量概念的仪高、i角参数测定原理与方法。具体分析讨论了仪高、i角的单独测定法和联合测定法,导出了参数方程组及计算公式。理论分析及实际计算表明:仪高、i角的联合测定法更具有一般性,可作为标准测定方法使用。同时,在实际作业中组合采用联合测定法与单独测定法,可能是一个最佳的选择。组合方法为:初次安装仪器时,应采用联合测定法确定仪高与i角;当已知仪高并确认未发生变化时,可采用单独测定法来确定i角,以节省测定时间。

In view of the characteristics of new high-speed bilateral observation digital level and staff（ HSBODLS）,the principle and method of measuring parameters both collimation axis height and angle i for HSBODLS are put forward based on the exchange measurement concept.The method of independent determination and non independent determination of collimation axis height and angle i are discussed in detail.The parameter equations and formulas are derived.Theoretical analysis and practical calculation show that non independent determination method for collimation axis height and angle i is more general and can be used as a standard determination method. At the same time,in practice,this paper holds that combined application of non independent determination method and independent determination method may be the best choice. Non independent determination method should be used when HSBODLS is installed initially and independent determination method should be used when the instrument height has been determined and unchanged in order to save time of measurement.