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液压双稳射流激振器在上、下封隔器之间的井筒中产生液压振动波，此振动波通过射孔孔道作用于油层，是用振动法激活油层的一种有效工具。它利用Ｃｏａｎｄａ 效应使液流方向变换流经左通道或右通道，通道的压力损失随液阻而变化。由于各通道的液阻不同，便在主振荡区（ 被振油层） 形成液压振动波。基于这一原理，建立了数学模型并进行了仿真。结果表明，位于被处理油层的激振器主振荡区的压力ｐ 随时间ｔ 发生周期性变化而形成液压振动波，此振动波的振幅Ａ与井口液压力ｐ０ 呈线性关系，而与惯性管液阻Ｒ近似地呈指数关系。
Hydraulic bistable jet exciter produces hydraulic vibration wave in the wellbore between the upper and lower packer. The vibration wave acts on the reservoir through the perforation tunnel, which is an effective tool to activate the reservoir by the vibration method. It utilizes the Coanda effect to cause the flow direction to change through the left or right channel, and the pressure loss of the channel changes with the liquid resistance. Due to the different hydraulic resistance of each channel, a hydraulic vibration wave is formed in the main oscillation region (oil layer being vibrated). Based on this principle, a mathematical model is established and simulated. The results show that the pressure p in the main oscillation zone of the exciter to be processed varies cyclically with time t to form a hydraulic vibration wave whose amplitude A is linear with the well head hydraulic pressure p0, Resistance R is approximately exponential.