Circuit for testing tensile force of steel wire rope
A technology of stretching and testing circuits, applied in the direction of tension measurement, etc., can solve the problem that the sensor cannot be replaced, and achieve the effect of ensuring the accuracy requirements
Inactive Publication Date: 2012-02-08
湖南通源机电科技有限公司
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Problems solved by technology
However, the sensor cannot be replaced during the wire rope pull test
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[0012] refer to figure 1 , the present embodiment comprises a tension sensor 1, a first-stage signal amplifier 2, a second-stage signal amplifier 3, an intelligent data collector 4, a display 5, the output of the tension sensor 1 is connected to the input of the first-stage signal amplifier 2 The output of the first-stage signal amplifier 2 is divided into two routes, one of which is directly connected to an input terminal of the intelligent data collector 4, and the other is connected to the second-stage signal amplifier 3 and the intelligent data collector 4. The other input end is connected, and the output end of the intelligent data collector 4 is connected with the input end of the display 5 .
[0013] The first stage signal amplifier 2 of the present invention has the same function as the signal amplifier in the existing tension test circuit, for example, when working, output a 0-10V signal (or other standard signal); the input terminal of the second-stage signal amplif...
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The invention relates to a circuit for testing tensile force of a steel wire rope. The circuit comprises a tensile force sensor, a first-stage signal amplifier, a data acquisition device and a display device, wherein the output end of the tensile force sensor is connected with the input end of the first-stage signal amplifier; the circuit is further provided with a second-stage signal amplifier, the data acquisition device is an intelligent data acquisition device with two input ends, the output of the first-stage signal amplifier is divided into two ways, and one way is directly connected with one input end of the intelligent data acquisition device; and the other way is connected with the other input end of the intelligent data acquisition device through the second-stage signal amplifier, and the output end of the intelligent data acquisition device is connected with the input end of the display device. Two signal amplifiers and the two-way input intelligent data acquisition device are adopted in the circuit, in a tensile test of the steel wire rope, the requirements on precision of large tensile force measurement and small tensile force measurement can be simultaneously ensuredunder the situation of not replacing the sensor.
Description
technical field [0001] The invention relates to a tension test circuit, in particular to a tension test circuit for steel wire rope stretching. Background technique [0002] The existing wire rope tension test circuit is composed of a tension sensor, an amplifier, a collector and a display connected in sequence. Its working principle is: the tension sensor outputs a mV-level signal that is linearly related to the tension, the amplifier amplifies the small signal output by the tension sensor into a voltage signal of 0-10V (or other standard voltage or current signal), and the collector compares the signal Collect and send to the display to display the tensile test data. However, any sensor and amplifier has a certain amount of error. The closer the actual measured value is to the full scale of the sensor, the smaller the relative error; the smaller the actual measured value, the larger the relative error. For example, if the range of a tension sensor is 200 tons and the er...
Claims
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IPC IPC(8): G01L5/10
Inventor 罗光寿龙衡峰陈武
Owner 湖南通源机电科技有限公司