They have installed speed measuring devices on the road 他們在路上安裝了測速裝置。
A new type of the electronic detector of rotor position and speed 新型的電子式轉子位置檢測和測速裝置
The equipment of " double light harrier " was developed and applied to measure object ' s velocity , which improved the precision of measuring impacting velocity 作者提出并完成研制的“雙擋光片法”測速裝置,成功地解決了沖擊速度的精確測定問題。
In direct torque control system , speed sensors are usually used to survey the speed of motor , but speed sensors have many disadvantages , such as inconvenient fixing and maintenance , inaccurate precision . at present it is an efficient and feasible method to estimate speed by using software instead of hardware 以往在直接轉矩控制系統中采用速度傳感器檢測速度信號,由于測速裝置具有安裝不便、維修困難、測量精度差等缺點,因而采用軟件代替硬件檢測設備辨識速度,即進行無速度傳感器的設計,不失為一種有效可行的速度辨識方法。