频率测量是一种常见的电量测量,不仅在电力生产现场、电子实验室等经常要对频率进行检测和监视,而且生产实践中许多需要检测和监视的非电量诸如转速、风速、流速及流量等均可利用适当的传感器转换为电频率的测量.虽然频率的测量可使用市售的各类数字式频率计实现,但由于它们功能单一,不具备运算和控制功能,实用中多有不便.而单板机较之它们相比,则具有较强的适应性.它不仅可以准确检测和显示频率值,而且可以将检测到的 Frequency measurement is a common power measurement, not only in the power production site, electronic laboratories and other often to detect and monitor the frequency, but also many production practices need to detect and monitor non-power such as speed, wind speed, flow rate and flow Can be converted to electrical frequency measurements using the appropriate sensors.Although the frequency measurements can be made using commercially available digital frequency meters, they are not as practical due to their single function, lack of computing and control functions, Slot machines are more adaptable than them, not only to accurately detect and display frequency values, but also to detect