Small-stroke proportional output LVDT compensation coil process

A compensation coil and proportional output technology, which is applied in coil manufacturing, transformer/inductor coil/winding/connection, etc., can solve the problems of large sum voltage and non-adjustable, etc., and achieve the effect of improving performance and meeting technical index requirements

Inactive Publication Date: 2019-04-12
安徽感航电子科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the designed coil differential voltage VA-VB=1.45V, and the value voltage VA+VB=5.0616V, far greater than the 3V requirement; (VA-VB) / (VA+VB)=0.286, which is worse than the requirement of ±0.5 get a lot
[0020] Therefore, there is a new shortcoming in the prior art: the sum voltage is too large and cannot be adjusted

Method used

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  • Small-stroke proportional output LVDT compensation coil process
  • Small-stroke proportional output LVDT compensation coil process
  • Small-stroke proportional output LVDT compensation coil process

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Embodiment Construction

[0040] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further elaborated below.

[0041] like Figure 1 to Figure 2 As shown, the small stroke ratio output LVDT compensation coil process includes the following steps:

[0042] Step 1: Design the number of turns and layers of the primary coil 1 according to the technical indicators for flat winding;

[0043] Step 2: Wind the compensation coil WE2 horizontally from left to right on the primary coil 1;

[0044] The output voltage of the compensation coil WE2 is VE, and the value does not change when the iron core moves, where:

[0045]

[0046] In the formula, (VA+VB) is the measured secondary coil and value voltage, and VF is the required voltage in the technical index;

[0047] The number of turns NE of the compensation coil WE2 is:

[0048] NE=(VE÷V1)×N1 (2)

[0049] In the formula, N1 is the number of turns o...

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Abstract

The invention relates to a small-stroke proportional output LVDT compensation coil process. The process comprises the following steps that step 1, the number of turns and the number of layer of primary coils are designed according to technical indexes for performing horizontal winding; step 2, a compensation coil WE is horizontally wound from left to right on the primary coils; and step 3, a secondary coil WA and a secondary coil WB are horizontally wound on the compensation coil WE according to a layer winding process. After the compensation coil is added, the wire winding length L and the length of an iron core can be increased, so that the performance of the LVDT can be improved; and the voltage value can be regulated, so that the requirements of technical indexes can be met.

Description

technical field [0001] The invention relates to the technical field of small-stroke LVDT, in particular to a small-stroke proportional output LVDT compensation coil technology. Background technique [0002] The modern aviation industry has more and more requirements for the small-stroke LVDT proportional output LVDT. Among them, the proportional output LVDT has certain requirements for the winding distance L and the stroke 2X, among which: [0003] 1. Integrate in the area corresponding to the iron core length lc: [0004] [0005] 2. The output voltage is proportional to the number of turns of the secondary coil covered by the iron core, and its coefficient is A 1 : [0006] In the formula (a), z is the stroke 2X, then the output of Va-Vb is 2CA 1 XL C [0007] 3. When the iron core is at zero position, the number of turns of the secondary coil covered by the iron core is: [0008] [0009] Among them, Va+Vb is twice the zero voltage, which is CL C LA 1 ; [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F41/06H01F27/28
CPCH01F27/28H01F41/06
Inventor 张冰张裕悝卫海燕
Owner 安徽感航电子科技有限公司
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