CN2062450U - 一种测量冲击波波速的装置 - Google Patents
一种测量冲击波波速的装置 Download PDFInfo
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- CN2062450U CN2062450U CN 90202359 CN90202359U CN2062450U CN 2062450 U CN2062450 U CN 2062450U CN 90202359 CN90202359 CN 90202359 CN 90202359 U CN90202359 U CN 90202359U CN 2062450 U CN2062450 U CN 2062450U
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Abstract
一种测量冲击波波速的装置，在一条板正面开一槽，槽底铺电阻丝，将一导电膜附在条板正面。当一垂直压力作用在导电膜上，使导电膜与电阻丝短路，测量其短路电压的变化，即可得到所测的爆速，本装置测点连续可得任一点速度，测量范围宽，可测异形轨迹，电阻片可做成各种形状。
Description
本发明属于爆轰波速的测量。
测量冲击波速一般用探针法。此法是将多个探针按一定距离置于冲击波掠过方向，波阵面顺序作用于各探针。记录备触发信号的间隔时间，以此去除探针间距，即得波速。此种方法的缺点是测点比较少，结果是平均速度。探头通用性差，测速范围窄。固定探针较费时间，并且抗干扰能力差。
本发明的目的是制作一可连续测量冲击波爆速的装置。
图1是测爆速装置截面图。
图2是测量爆速装置示意图。
本装置的重要特点是，在一条板正面开一槽，槽底铺电阻丝，将一导电模附在条板正面上。下面简述本发明。由图1可知，在条板正面开一长槽a，此条板上面敷铜，槽底铺电阻丝Φ，此电阻一端接敷铜面另一端做引线，在条板上平面附一导电模σ。当垂直压力作用在导电膜σ上时，使电阻丝与地线短路，从而使B，C间电阻值随丝长线性减小。同时在CB间通以恒流，记录此变化过程中两端电压UBC，则VBC－t的图线斜率VBC／A乘以一常数即得被测爆速。见图2。在实际测量中，由于所测瀑速不同，所以要经常调整槽宽，槽深，导电膜的厚度，及电阻丝的线径。尤其要注意导电膜与电阻丝之间的距离。如果太小则强扰动时容易意外短路；如果太大，则不易短路或短路点不规则。
本发明测点连续，可得任一点速度。测量范围宽，应用广，只要在垂直于被测方向上有足够压力，就可得到被测方向的任意速度。可测异形轨迹，被测轨迹可长，可短，可弯，电阻片可做成各种形状。
Claims (1)
1、一种测量冲击波波速的装置，共特征是在一条板正面开一槽，槽底铺电阻丝，将一导电膜附在条板正面上。
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| Application Number | Priority Date | Filing Date | Title |
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| CN 90202359 CN2062450U (zh) | 1990-03-09 | 1990-03-09 | 一种测量冲击波波速的装置 |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 90202359 CN2062450U (zh) | 1990-03-09 | 1990-03-09 | 一种测量冲击波波速的装置 |
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| CN2062450U true CN2062450U (zh) | 1990-09-19 |
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| CN 90202359 Withdrawn CN2062450U (zh) | 1990-03-09 | 1990-03-09 | 一种测量冲击波波速的装置 |
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| CN (1) | CN2062450U (zh) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103630704A (zh) * | 2013-11-27 | 2014-03-12 | 大连理工大学 | 一种连续电阻丝探针及其制造方法 |
| CN110057659A (zh) * | 2019-05-07 | 2019-07-26 | 大连理工大学 | 一种测量爆轰驱动下飞片姿态的阶梯支架型探针元件及其测试方法 |
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1990
- 1990-03-09 CN CN 90202359 patent/CN2062450U/zh not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103630704A (zh) * | 2013-11-27 | 2014-03-12 | 大连理工大学 | 一种连续电阻丝探针及其制造方法 |
| CN110057659A (zh) * | 2019-05-07 | 2019-07-26 | 大连理工大学 | 一种测量爆轰驱动下飞片姿态的阶梯支架型探针元件及其测试方法 |
| CN110057659B (zh) * | 2019-05-07 | 2021-08-10 | 大连理工大学 | 一种测量爆轰驱动下飞片姿态的阶梯支架型探针元件及其测试方法 |
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