本文針對單向作動的錐桿節流器，提出了一種鑑別其設計參數的方法，其設計參數有三個，即節流參數，順從參數和節流長度比。鑑別方法包含了實驗及分析的步驟，實驗設備的主體包括了用來施加已知的向下負荷的平面工作台，其以至少四個向上油腔的開放式靜壓軸承所支撐。將與油腔同數目的節流器連接在油腔之入口處，以工作台所受的負載改變油腔的壓力來調節這些節流器的出口壓力，測量節流器流量與其入口及出口兩端壓力，以及量測入出口兩端油溫以計算通過節流器的流體動力黏度，將測量得到的流量與入出口兩端壓力差的測量結果，作為參數鑑別所需之分析數據。鑑別設計參數的分析，是以計算所得流量與實際測得流量之間的最小誤差平方法來求得設計參數。由於設計參數受到供油壓力之影響，對於每個公稱供油壓力，都分別鑑別受供油壓力影響的設計參數，因而得到順從參數及節流長度比均隨供油壓力增加，以及節流參數維持固定的結果。另外，通過理論分析驗證了參數鑑別的結果，並由實驗結果分析了設計參數對節流器流量的影響，證明本文所提出的方法是有效的，所得的結果數值具有可靠的準確度，因此為了匹配節流器與油腔以及校準節流器性能，參數鑑別對於節流器的設計是必要的。

This paper proposes a method to identify the three design parameters which are restriction parameters, compliance coefficient and restriction length ratio for a single-action tapered-spool restrictor. The identification method includes both experiment and analytical procedures. The experimental setup consists a planar table used to support a known downward load, mounted on an open-type hydrostatic bearing with at least four upward-facing recesses. A one-way a restrictor, matching the number of recesses is connected to the inlet of each recess. By adjusting the pressure of these recesses, the pressure changes at the outlet of the restrictors can be observed by varying the load applied to the table. The flow rate, pressures at both the inlet and outlet of the restrictor, and the oil temperature at both ends are measured to determine the fluid dynamic viscosity passing through the restrictor, which is used to establish the relationship between the flow rate and the pressure difference between the inlet and outlet. The analysis for identifying the design parameters is performed using the least square error method, by comparing the calculated flow rate obtained from the identification parameters with the actual measured flow rate. Since the design parameters are influenced by the oil supply pressure, the parameters affected by the supply pressure are identified separately for each nominal oil upply pressure. Consequently, the compliance parameter and the restriction length ratio increase with the increasing supply pressure, while the restriction parameter remains a constant. In addition, the results of parameter identification are validated through theoretical analysis, and the impact of design parameters on flow rates is studied through experiments, This confirms the effectiveness of the proposed method, as the obtained numerical values demonstrating reliable accuracy. Therefore, in order to match the recess and restrictor and to calibrate the performance of the restrictor, parameter identification is necessary for the design of the restrictor.