CN108872741A - Method for calibrating and predicting ignition temperature rise of exposed bridge wire of pulse electric explosion device - Google Patents
Method for calibrating and predicting ignition temperature rise of exposed bridge wire of pulse electric explosion device Download PDFInfo
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Abstract
本发明公开了一种脉冲下电爆装置裸露桥丝发火温升校准与预测方法，包括以下步骤：步骤一，测试环境温度T0下电爆装置的50%临界发火激励；步骤二，建立在该参数的电磁脉冲作用下电爆装置50%临界发火激励与裸露桥丝发火温升的对应关系；步骤三，拟合得到电磁脉冲作用下裸露桥丝发火温升随脉冲宽度和重复周期变化的校准和预测模型；步骤四，实现不同参数电磁脉冲作用下电爆装置裸露桥丝发火温升的有效预测；本发明的脉冲下电爆装置裸露桥丝发火温升校准与预测方法，可以实现不同电磁脉冲作用下电爆装置裸露桥丝发火温升的有效预测，提高以裸露桥丝温升为依据判断电爆装置发火状态的准确性和工程实用性。
The invention discloses a method for calibrating and predicting the ignition temperature rise of exposed bridge wires of an electric explosive device under pulse, comprising the following steps: step 1, testing the 50% critical ignition excitation of the electric explosive device at an ambient temperature T 0 ; step 2, establishing The corresponding relationship between the 50% critical ignition excitation of the electric explosion device under the action of the electromagnetic pulse and the ignition temperature rise of the exposed bridge wire of this parameter; Step 3, the fitting relationship between the ignition temperature rise of the exposed bridge wire under the action of the electromagnetic pulse and the change of the pulse width and repetition period Calibration and prediction model; Step 4, realize the effective prediction of the temperature rise of the exposed bridge wire of the electric explosion device under the action of electromagnetic pulses of different parameters; the method for calibrating and predicting the temperature rise of the exposed bridge wire of the electric explosion device under the pulse of the present invention can realize different The effective prediction of the ignition temperature rise of the exposed bridge wire of the electric explosive device under the action of electromagnetic pulse improves the accuracy and engineering practicability of judging the ignition state of the electric explosive device based on the temperature rise of the exposed bridge wire.
Description
技术领域technical field
本发明涉及一种脉冲下电爆装置裸露桥丝发火温升校准与预测方法，属于军用设备技术领域。The invention relates to a method for calibrating and predicting the ignition temperature rise of an exposed bridge wire of an electric explosion device under pulse, and belongs to the technical field of military equipment.
背景技术Background technique
电爆装置常用于引燃火药、引爆炸药，还可以作为小型驱动装置，用以快速打开阀门、解除保险及火箭间分离等，在常规武器弹药、导弹、核武器及航空航天系统等军事工程中得以广泛应用；它是起爆与点火的最敏感的始发能源，其功能首发性和作用敏感性决定了其在武器系统中的地位和作用，其安全性和可靠性直接影响武器系统的安全性和可靠性。在高功率微波条件下，脉冲信号宽度在很多情况下为μs量级，而目前测量精度较高的光纤测温系统的最快响应时间仍为ms量级，测温结果为响应时间内的平均值，无法实时监测桥丝的温度变化；另外，电爆装置的性能具有较大的分散性且属于一次性作用产品，无法通过试验准确测量其发火温度；电磁脉冲作用下电爆装置的发火温升与环境温度相关，而不同环境温度下电爆装置发火时的裸露桥丝温升也存在差别；本发明通过有限次数的试验校准上述因素对测温结果的影响，确保预测结果的有效性；并通过有限的试验建立电磁脉冲作用下电爆装置裸露桥丝发火温升的校准模型，实现电磁脉冲作用下电爆装置裸露桥丝发火温升的有效校准和预测。Electric explosive devices are often used to ignite gunpowder and detonate explosives. They can also be used as small driving devices to quickly open valves, release insurance, and separate rockets. They are used in military projects such as conventional weapon ammunition, missiles, nuclear weapons, and aerospace systems. It is widely used; it is the most sensitive starting energy for detonation and ignition. Its functional initiation and action sensitivity determine its position and role in weapon systems, and its safety and reliability directly affect the safety and security of weapon systems. reliability. Under high-power microwave conditions, the pulse signal width is in the order of μs in many cases, but the fastest response time of the optical fiber temperature measurement system with high measurement accuracy is still in the order of ms, and the temperature measurement result is the average of the response time value, it is impossible to monitor the temperature change of the bridge wire in real time; in addition, the performance of the electric explosion device has a large dispersion and is a one-time action product, and the ignition temperature cannot be accurately measured through the test; the ignition temperature of the electric explosion device under the action of electromagnetic pulse The rise is related to the ambient temperature, and there are differences in the temperature rise of the exposed bridge wire when the electric explosive device is fired under different ambient temperatures; the present invention calibrates the influence of the above factors on the temperature measurement results through a limited number of tests to ensure the validity of the prediction results; And through limited experiments, a calibration model for the ignition temperature rise of the exposed bridge wire of the electric explosive device under the action of electromagnetic pulse is established to realize the effective calibration and prediction of the ignition temperature rise of the exposed bridge wire of the electric explosive device under the action of electromagnetic pulse.
发明内容Contents of the invention
为解决上述问题，本发明提出了一种脉冲下电爆装置裸露桥丝发火温升校准与预测方法，可以实现不同电磁脉冲作用下电爆装置裸露桥丝发火温升的有效预测，提高以裸露桥丝温升为依据判断电爆装置发火状态的准确性和工程实用性，为开展武器装备强场电磁辐射安全裕度评估提供可靠判据。In order to solve the above problems, the present invention proposes a method for calibrating and predicting the ignition temperature rise of the exposed bridge wire of the electric explosion device under pulse, which can realize the effective prediction of the ignition temperature rise of the exposed bridge wire of the electric explosion device under the action of different electromagnetic pulses, and improve the temperature rise of the exposed bridge wire of the electric explosion device. The temperature rise of the bridge wire is based on the accuracy and engineering practicability of judging the ignition state of the electric explosive device, and provides a reliable criterion for the evaluation of the safety margin of high-field electromagnetic radiation of weapons and equipment.
本发明的脉冲下电爆装置裸露桥丝发火温升校准与预测方法，包括以下步骤：The method for calibrating and predicting the ignition temperature rise of the exposed bridge wire of the pulsed electric explosion device of the present invention comprises the following steps:
步骤一，在电磁脉冲作用下，测试环境温度T0下电爆装置的50%临界发火激励；Step 1, under the action of electromagnetic pulse, test the 50% critical ignition excitation of the electric explosive device under the ambient temperature T 0 ;
步骤二，在与步骤一相同的电磁脉冲作用下，测试环境温度T0下50%临界发火激励对应的裸露桥丝温度实测值，建立在该参数的电磁脉冲作用下电爆装置50%临界发火激励与裸露桥丝发火温升的对应关系；Step 2: Under the action of the same electromagnetic pulse as Step 1, test the measured value of the exposed bridge wire temperature corresponding to the 50% critical ignition excitation at the ambient temperature T 0 , and establish the 50% critical ignition of the electric explosive device under the action of the electromagnetic pulse of this parameter Corresponding relationship between excitation and firing temperature rise of bare bridge wire;
步骤三，改变电磁脉冲信号的脉冲宽度和重复周期，获取不同脉冲参数条件下电爆装置发火时裸露桥丝温度的实测值；根据不同脉冲参数条件下裸露桥丝发火温升的离散数据点，拟合得到电磁脉冲作用下裸露桥丝发火温升随脉冲宽度和重复周期变化的校准和预测模型或曲线；Step 3, change the pulse width and repetition period of the electromagnetic pulse signal, and obtain the measured value of the temperature of the exposed bridge wire when the electric explosive device is fired under different pulse parameters; according to the discrete data points of the temperature rise of the exposed bridge wire under different pulse parameters, Fitting to obtain the calibration and prediction model or curve of the ignition temperature rise of the exposed bridge wire changing with the pulse width and repetition period under the action of electromagnetic pulse;
步骤四，依据步骤三得到的电磁脉冲作用下裸露桥丝发火温升校准和预测模型或曲线，实现不同参数电磁脉冲作用下电爆装置裸露桥丝发火温升的有效预测。Step 4: Based on the calibration and prediction model or curve of the ignition temperature rise of the exposed bridge wire under the action of the electromagnetic pulse obtained in step 3, an effective prediction of the ignition temperature rise of the exposed bridge wire of the electric explosion device under the action of electromagnetic pulses with different parameters is realized.
进一步地，所述步骤一的具体操作步骤如下：采用升降法试验（参见GJB/Z 377A-94），借助统计学理论确定电爆装置在电磁脉冲作用下的50%临界发火激励；灼热桥丝式电爆装置的临界发火激励一般服从正态分布，此时不同试样的50%临界发火激励与其临界发火激励的统计平均值相等，为提高试验精度，选取不少于20个的样本量进行试验；试验时，在环境温度T0下，对选取的电爆装置开展电磁脉冲注入或辐射效应试验，按照升降法确定电爆装置的50%临界发火激励，所述的电爆装置包括引线，及设置于引线中的桥丝，及包裹于桥丝周围的药剂。Further, the specific operation steps of the first step are as follows: use the lifting method test (see GJB/Z 377A-94), and use statistical theory to determine the 50% critical ignition excitation of the electric explosive device under the action of electromagnetic pulse; The critical ignition excitation of the type electric explosive device generally obeys the normal distribution. At this time, 50% of the critical ignition excitation of different samples is equal to the statistical average value of the critical ignition excitation. In order to improve the test accuracy, no less than 20 samples are selected for Test; during the test, at ambient temperature T 0 , carry out the electromagnetic pulse injection or radiation effect test to the selected electric explosive device, determine the 50% critical ignition excitation of the electric explosive device according to the lifting method, and the electric explosive device includes a lead wire, And the bridge wire arranged in the lead wire, and the medicine wrapped around the bridge wire.
再进一步地，所述发火激励指电磁脉冲注入或辐射，发火激励参数包括电磁脉冲信号的强度、上升时间、脉冲宽度和重复周期等。Still further, the ignition excitation refers to electromagnetic pulse injection or radiation, and the ignition excitation parameters include the intensity, rise time, pulse width and repetition period of the electromagnetic pulse signal.
进一步地，所述步骤二的具体操作步骤如下：去除电爆装置内包裹桥丝的药剂，将测温传感器贴近桥丝放置，在其他实验条件不变的情况下，在一定的外界环境温度T 0下开展电磁脉冲效应试验，获取电爆装置50%临界发火激励对应的裸露桥丝温度实测值，对应的裸露桥丝发火温升为。Further, the specific operation steps of the second step are as follows: remove the agent wrapped in the bridge wire in the electric explosion device, place the temperature measuring sensor close to the bridge wire, and keep other experimental conditions unchanged, at a certain external ambient temperature T The electromagnetic pulse effect test was carried out at 0 to obtain the measured value of the exposed bridge wire temperature corresponding to the 50% critical ignition excitation of the electric explosion device , and the corresponding exposed bridge wire ignition temperature rise is .
再进一步地，所述步骤二其测试环境温度与步骤一其测试环境温度相同。Still further, the test environment temperature of the step two is the same as the test environment temperature of the step one.
进一步地，所述步骤三的具体操作步骤如下：由于药剂是否发火与电爆装置耦合的电磁能量密切相关，因此，在电磁脉冲辐射试验中，电爆装置临界发火激励值与脉冲宽度和重复周期相关；将测温传感器贴近桥丝放置，并将测温传感器与光纤测温试验配置连接，将桥丝测温信号通过光纤传输到光纤测温系统主机上，光纤测温系统主机上安装有光纤数据采集模块，光纤测温系统主机电连接至控制测试系统；改变电磁脉冲信号的脉冲宽度和重复周期，重复步骤一和步骤二，获取不同脉冲参数条件（电磁脉冲信号的脉冲宽度和重复周期）下电爆装置50%临界发火激励对应的裸露桥丝温升；根据不同脉冲参数条件下裸露桥丝发火温升的离散数据点，采用最小二乘法等方法拟合得到电磁脉冲作用下裸露桥丝发火温升随脉冲宽度和重复周期变化的校准和预测模型或曲线。Further, the specific operation steps of the step three are as follows: Since whether the medicament ignites is closely related to the electromagnetic energy coupled by the electric explosive device, in the electromagnetic pulse radiation test, the critical ignition excitation value of the electric explosive device is related to the pulse width and repetition period Relevant; place the temperature sensor close to the bridge wire, connect the temperature sensor to the fiber optic temperature measurement test configuration, and transmit the temperature measurement signal of the bridge wire to the host of the fiber optic temperature measurement system through an optical fiber. The host of the fiber optic temperature measurement system is equipped with an optical fiber The data acquisition module and the host computer of the optical fiber temperature measurement system are electrically connected to the control test system; change the pulse width and repetition period of the electromagnetic pulse signal, repeat steps 1 and 2, and obtain different pulse parameter conditions (pulse width and repetition period of the electromagnetic pulse signal) The temperature rise of the exposed bridge wire corresponding to the 50% critical ignition excitation of the lower electric explosive device ;Bare bridge wire ignition temperature rise under different pulse parameter conditions The discrete data points of the exposed bridge wires are fitted by the method of least squares to obtain the ignition temperature rise of the exposed bridge wire under the action of electromagnetic pulse Calibration and prediction models or curves as a function of pulse width and repetition period.
进一步地，所述步骤四的具体操作步骤如下：依据步骤三得到的电磁脉冲作用下裸露桥丝发火温升校准和预测模型或曲线，给定受试电爆装置所处的电磁脉冲参数特征（电磁脉冲信号的脉冲宽度和重复周期），计算得出该脉冲参数作用下电爆装置对应的裸露桥丝发火温度，从而实现不同参数电磁脉冲作用下电爆装置裸露桥丝发火温升的有效校准和预测，为后续强电磁脉冲辐射条件下电爆装置安全裕度评估提供依据。Further, the specific operation steps of step four are as follows: according to the temperature rise of the exposed bridge wire under the action of electromagnetic pulse obtained in step three Calibrate and predict the model or curve, given the electromagnetic pulse parameter characteristics (pulse width and repetition period of the electromagnetic pulse signal) of the electric explosive device under test, calculate the exposed bridge wire ignition corresponding to the electric explosive device under the action of the pulse parameters temperature , so as to realize the effective calibration and prediction of the ignition temperature rise of the exposed bridge wire of the electric explosive device under the action of electromagnetic pulses of different parameters, and provide a basis for the subsequent evaluation of the safety margin of the electric explosive device under the condition of strong electromagnetic pulse radiation.
本发明与现有技术相比较，本发明的脉冲下电爆装置裸露桥丝发火温升校准与预测方法，从灼热桥丝式电爆装置发火机理出发，采用光纤测温的方法测试评估电爆装置的电磁辐射安全性，不仅与其发火机理紧密贴合，能够准确反映其发火特性，而且桥丝温升测量与辐射频率几乎没有关系，能够克服电磁辐射频率对试验结果的影响，可以解决GHz以上频率的电爆装置电磁安全性测试问题，有效拓展适用频率上限；针对目前光纤测温方式的不足，提出了电爆装置50%临界发火激励对应裸露桥丝温升的测试方法，通过建立裸露桥丝发火温升随脉冲宽度和重复周期变化的校准和预测模型，解决了测温传感器响应时间不够快的问题，可以实现不同电磁脉冲作用下电爆装置裸露桥丝发火温升的有效预测，提高以裸露桥丝温升为依据判断电爆装置发火状态的准确性和工程实用性，为开展武器装备强场电磁辐射安全裕度评估提供可靠判据。Compared with the prior art, the present invention has a method for calibrating and predicting the ignition temperature rise of the exposed bridge wire of the electric explosive device under pulse, starting from the ignition mechanism of the burning bridge wire electric explosive device, and adopting the method of optical fiber temperature measurement to test and evaluate the electric explosion The electromagnetic radiation safety of the device not only fits closely with its ignition mechanism, but can accurately reflect its ignition characteristics, and the temperature rise measurement of the bridge wire has almost no relationship with the radiation frequency, which can overcome the influence of the electromagnetic radiation frequency on the test results, and can solve the problem above GHz The frequency of the electromagnetic safety test of the electric explosive device effectively expands the upper limit of the applicable frequency; in view of the shortcomings of the current optical fiber temperature measurement method, a test method for the 50% critical ignition excitation of the electric explosive device corresponding to the temperature rise of the exposed bridge wire is proposed. The calibration and prediction model of wire ignition temperature rise with pulse width and repetition period has solved the problem that the response time of the temperature sensor is not fast enough, and can realize the effective prediction of the ignition temperature rise of the exposed bridge wire of the electric explosion device under the action of different electromagnetic pulses, and improve The accuracy and engineering practicability of judging the ignition state of the electric explosive device based on the temperature rise of the exposed bridge wire provides a reliable criterion for the evaluation of the safety margin of high-field electromagnetic radiation of weapons and equipment.
附图说明Description of drawings
图1是本发明的电爆装置结构示意图。Fig. 1 is a structural schematic diagram of the electric explosive device of the present invention.
图2是本发明的电爆装置裸露桥丝温升测量设置结构示意图。Fig. 2 is a schematic structural diagram of the temperature rise measurement setup of the exposed bridge wire of the electric explosive device of the present invention.
图3是本发明的光纤测温试验配置结构示意图。Fig. 3 is a schematic diagram of the configuration structure of the optical fiber temperature measurement test of the present invention.
附图中各部件标注为：1-引线，2-桥丝，3-药剂，4-测温传感器，5-光纤测温系统主机，6-光纤数据采集模块，7-控制测试系统。The components in the drawings are marked as: 1-lead wire, 2-bridge wire, 3-medicine, 4-temperature sensor, 5-optical fiber temperature measurement system host, 6-optical fiber data acquisition module, 7-control test system.
具体实施方式Detailed ways
本发明的脉冲下电爆装置裸露桥丝发火温升校准与预测方法，包括以下步骤：The method for calibrating and predicting the ignition temperature rise of the exposed bridge wire of the pulsed electric explosion device of the present invention comprises the following steps:
步骤一，在电磁脉冲作用下，测试环境温度T0下电爆装置的50%临界发火激励；Step 1, under the action of electromagnetic pulse, test the 50% critical ignition excitation of the electric explosive device under the ambient temperature T 0 ;
步骤二，在与步骤一相同的电磁脉冲作用下，测试环境温度T0下50%临界发火激励对应的裸露桥丝温度实测值，建立在该参数的电磁脉冲作用下电爆装置50%临界发火激励与裸露桥丝发火温升的对应关系；Step 2: Under the action of the same electromagnetic pulse as Step 1, test the measured value of the exposed bridge wire temperature corresponding to the 50% critical ignition excitation at the ambient temperature T 0 , and establish the 50% critical ignition of the electric explosive device under the action of the electromagnetic pulse of this parameter Corresponding relationship between excitation and firing temperature rise of bare bridge wire;
步骤三，改变电磁脉冲信号的脉冲宽度和重复周期，获取不同脉冲参数条件下电爆装置发火时裸露桥丝温度的实测值；根据不同脉冲参数条件下裸露桥丝发火温升的离散数据点，拟合得到电磁脉冲作用下裸露桥丝发火温升随脉冲宽度和重复周期变化的校准和预测模型或曲线；Step 3, change the pulse width and repetition period of the electromagnetic pulse signal, and obtain the measured value of the temperature of the exposed bridge wire when the electric explosive device is fired under different pulse parameters; according to the discrete data points of the temperature rise of the exposed bridge wire under different pulse parameters, Fitting to obtain the calibration and prediction model or curve of the ignition temperature rise of the exposed bridge wire changing with the pulse width and repetition period under the action of electromagnetic pulse;
步骤四，依据步骤三得到的电磁脉冲作用下裸露桥丝发火温升校准和预测模型或曲线，实现不同参数电磁脉冲作用下电爆装置裸露桥丝发火温升的有效预测。Step 4: Based on the calibration and prediction model or curve of the ignition temperature rise of the exposed bridge wire under the action of the electromagnetic pulse obtained in step 3, an effective prediction of the ignition temperature rise of the exposed bridge wire of the electric explosion device under the action of electromagnetic pulses with different parameters is realized.
所述步骤一的具体操作步骤如下：采用升降法试验（参见GJB/Z 377A-94），借助统计学理论确定电爆装置在电磁脉冲作用下的50%临界发火激励；灼热桥丝式电爆装置的临界发火激励一般服从正态分布，此时不同试样的50%临界发火激励与其临界发火激励的统计平均值相等，为提高试验精度，选取不少于20个的样本量进行试验；试验时，在环境温度T0下，对选取的电爆装置开展电磁脉冲注入或辐射效应试验，按照升降法确定电爆装置的50%临界发火激励，如图1所示，所述的电爆装置包括引线1，及设置于引线1中的桥丝2，及包裹于桥丝2周围的药剂3。The specific operation steps of the first step are as follows: use the lifting method test (see GJB/Z 377A-94), and use statistical theory to determine the 50% critical ignition excitation of the electric explosion device under the action of electromagnetic pulse; the glowing bridge wire electric explosion The critical ignition excitation of the device generally obeys the normal distribution. At this time, 50% of the critical ignition excitation of different samples is equal to the statistical average value of the critical ignition excitation. In order to improve the test accuracy, no less than 20 samples were selected for the test; , at ambient temperature T 0 , carry out the electromagnetic pulse injection or radiation effect test on the selected electric explosive device, and determine the 50% critical ignition excitation of the electric explosive device according to the lifting method, as shown in Figure 1, the electric explosive device It includes a lead wire 1, a bridge wire 2 arranged in the lead wire 1, and a medicine 3 wrapped around the bridge wire 2.
所述步骤二的具体操作步骤如下：为避免环境温度对测试结果的影响，保持步骤二与步骤一的环境温度相同，如图2所示，去除电爆装置内包裹桥丝2的药剂3，将测温传感器4贴近桥丝2放置，在其他实验条件不变的情况下，在一定的外界环境温度T 0下开展电磁脉冲效应试验，获取电爆装置50%临界发火激励对应的裸露桥丝温度实测值，对应的裸露桥丝发火温升为。The specific operation steps of the step two are as follows: in order to avoid the influence of the ambient temperature on the test results, keep the ambient temperature of the step two and the step one the same, as shown in Figure 2, remove the medicament 3 wrapping the bridge wire 2 in the electric explosion device, Place the temperature sensor 4 close to the bridge wire 2 , and carry out the electromagnetic pulse effect test at a certain external environment temperature T0 under the condition of other experimental conditions unchanged, and obtain the exposed bridge wire corresponding to the 50% critical ignition excitation of the electric explosive device Measured value of temperature , and the corresponding exposed bridge wire ignition temperature rise is .
所述步骤三的具体操作步骤如下：由于药剂是否发火与电爆装置耦合的电磁能量密切相关，因此，在电磁脉冲辐射试验中，电爆装置临界发火激励值与脉冲宽度和重复周期相关；如图3所示，将测温传感器4贴近桥丝2放置，并将测温传感器4与光纤测温试验配置连接，将桥丝2测温信号通过光纤传输到光纤测温系统主机5上，光纤测温系统主机5上安装有光纤数据采集模块6，光纤测温系统主机5电连接至控制测试系统7；改变电磁脉冲信号的脉冲宽度和重复周期，重复步骤一和步骤二，获取不同脉冲参数条件（电磁脉冲信号的脉冲宽度和重复周期）下电爆装置50%临界发火激励对应的裸露桥丝温升；根据不同脉冲参数条件下裸露桥丝发火温升的离散数据点，采用最小二乘法等方法拟合得到电磁脉冲作用下裸露桥丝发火温升随脉冲宽度和重复周期变化的校准和预测模型或曲线。The specific operation steps of the step three are as follows: Since whether the medicament ignites is closely related to the electromagnetic energy coupled by the electric explosive device, in the electromagnetic pulse radiation test, the critical ignition excitation value of the electric explosive device is related to the pulse width and the repetition period; As shown in Figure 3, the temperature measuring sensor 4 is placed close to the bridge wire 2, and the temperature measuring sensor 4 is connected to the optical fiber temperature measurement test configuration, and the temperature measurement signal of the bridge wire 2 is transmitted to the host 5 of the optical fiber temperature measurement system through an optical fiber. An optical fiber data acquisition module 6 is installed on the host 5 of the temperature measurement system, and the host 5 of the optical fiber temperature measurement system is electrically connected to the control test system 7; the pulse width and repetition period of the electromagnetic pulse signal are changed, and steps 1 and 2 are repeated to obtain different pulse parameters The temperature rise of the exposed bridge wire corresponding to the 50% critical ignition excitation of the electric explosive device under the conditions (pulse width and repetition period of the electromagnetic pulse signal) ;Bare bridge wire ignition temperature rise under different pulse parameter conditions The discrete data points of the exposed bridge wires are fitted by the method of least squares to obtain the ignition temperature rise of the exposed bridge wire under the action of electromagnetic pulse Calibration and prediction models or curves as a function of pulse width and repetition period.
所述步骤四的具体操作步骤如下：依据步骤三得到的电磁脉冲作用下裸露桥丝发火温升校准和预测模型或曲线，给定受试电爆装置所处的电磁脉冲参数特征（电磁脉冲信号的脉冲宽度和重复周期），计算得出该脉冲参数作用下电爆装置对应的裸露桥丝发火温度，从而实现不同参数电磁脉冲作用下电爆装置裸露桥丝发火温升的有效校准和预测，为后续强电磁脉冲辐射条件下电爆装置安全裕度评估提供依据。The specific operation steps of the step 4 are as follows: According to the electromagnetic pulse obtained in the step 3, the temperature rise of the exposed bridge wire is ignited Calibrate and predict the model or curve, given the electromagnetic pulse parameter characteristics (pulse width and repetition period of the electromagnetic pulse signal) of the electric explosive device under test, calculate the exposed bridge wire ignition corresponding to the electric explosive device under the action of the pulse parameters temperature , so as to realize the effective calibration and prediction of the ignition temperature rise of the exposed bridge wire of the electric explosive device under the action of electromagnetic pulses of different parameters, and provide a basis for the subsequent evaluation of the safety margin of the electric explosive device under the condition of strong electromagnetic pulse radiation.
本发明的脉冲下电爆装置裸露桥丝发火温升校准与预测方法，从灼热桥丝式电爆装置发火机理出发，采用光纤测温的方法测试评估电爆装置的电磁辐射安全性，不仅与其发火机理紧密贴合，能够准确反映其发火特性，而且桥丝温升测量与辐射频率几乎没有关系，能够克服电磁辐射频率对试验结果的影响，可以解决GHz以上频率的电爆装置电磁安全性测试问题，有效拓展适用频率上限；针对目前光纤测温方式的不足，提出了电爆装置50%临界发火激励对应裸露桥丝温升的测试方法，通过建立裸露桥丝发火温升随脉冲宽度和重复周期变化的校准和预测模型，解决了测温传感器响应时间不够快的问题，可以实现不同电磁脉冲作用下电爆装置裸露桥丝发火温升的有效预测，提高以裸露桥丝温升为依据判断电爆装置发火状态的准确性和工程实用性，为开展武器装备强场电磁辐射安全裕度评估提供可靠判据。The method for calibrating and predicting the ignition temperature rise of the exposed bridge wire of the pulsed electric explosive device of the present invention starts from the ignition mechanism of the glowing bridge wire electric explosive device, and adopts the method of optical fiber temperature measurement to test and evaluate the electromagnetic radiation safety of the electric explosive device. The ignition mechanism is closely matched, which can accurately reflect its ignition characteristics, and the temperature rise measurement of the bridge wire has almost no relationship with the radiation frequency, which can overcome the influence of electromagnetic radiation frequency on the test results, and can solve the electromagnetic safety test of electric explosive devices with frequencies above GHz problem, and effectively expand the upper limit of the applicable frequency; in view of the shortcomings of the current optical fiber temperature measurement method, a test method for the temperature rise of the exposed bridge wire corresponding to the 50% critical ignition excitation of the electric explosive device is proposed. The calibration and prediction model of periodic changes solves the problem that the response time of the temperature sensor is not fast enough. It can realize the effective prediction of the ignition temperature rise of the exposed bridge wire of the electric explosion device under the action of different electromagnetic pulses, and improve the judgment based on the temperature rise of the exposed bridge wire. The accuracy and engineering practicability of the ignition state of the electric explosive device provide a reliable criterion for the evaluation of the safety margin of high-field electromagnetic radiation of weapons and equipment.
上述实施例，仅是本发明的较佳实施方式，故凡依本发明专利申请范围所述的构造、特征及原理所做的等效变化或修饰，均包括于本发明专利申请范围内。The above-mentioned embodiments are only preferred implementation modes of the present invention, so all equivalent changes or modifications made according to the structures, features and principles described in the scope of the patent application of the present invention are included in the scope of the patent application of the present invention.
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