CN107091677A - A kind of error compensating method and the belt conveyer scale based on error compensation - Google Patents
A kind of error compensating method and the belt conveyer scale based on error compensation Download PDFInfo
- Publication number
- CN107091677A CN107091677A CN201710234879.XA CN201710234879A CN107091677A CN 107091677 A CN107091677 A CN 107091677A CN 201710234879 A CN201710234879 A CN 201710234879A CN 107091677 A CN107091677 A CN 107091677A
- Authority
- CN
- China
- Prior art keywords
- weighing
- unit
- compensation
- signal
- time
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000005303 weighing Methods 0.000 claims abstract description 468
- 239000000463 material Substances 0.000 claims abstract description 94
- 230000001133 acceleration Effects 0.000 claims description 13
- 230000005484 gravity Effects 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 10
- 230000001186 cumulative effect Effects 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 13
- 238000010586 diagram Methods 0.000 description 6
- 239000000523 sample Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000109 continuous material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G11/00—Apparatus for weighing a continuous stream of material during flow; Conveyor belt weighers
- G01G11/006—Special taring or checking devices therefor
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Conveyors (AREA)
Abstract
本发明提供一种误差补偿方法：对获取的第一称重信号与第二称重信号进行补偿，得到补偿称重信号F3＝(F1×D2‑F2×D1)/(D2‑D1)。本发明还提供基于误差补偿的皮带秤包括：第一称重单元、第二称重单元、速度传感器、补偿单元、称重仪表；或，第一称重单元、第二称重单元、速度传感器、补偿称重单元；补偿单元或者补偿称重单元对第一称重信号与第二称重信号进行补偿。同时，补偿单元、称重仪表或者补偿称重单元还判定物料是否为同一批物料，称重仪表或者补偿称重单元对同一批物料瞬时称重进行累计求和，获得并显示输送物料总重量。本发明具有精确度高、重复性与耐久性较好、成本较低等特点，可广泛应用于计量等领域。
The present invention provides an error compensation method: Compensate the acquired first weighing signal and the second weighing signal to obtain the compensated weighing signal F 3 =(F 1 ×D 2 -F 2 ×D 1 )/(D 2 ‑ D1). The present invention also provides a belt scale based on error compensation comprising: a first weighing unit, a second weighing unit, a speed sensor, a compensation unit, a weighing instrument; or, a first weighing unit, a second weighing unit, a speed sensor . A compensation weighing unit; the compensation unit or the compensation weighing unit compensates the first weighing signal and the second weighing signal. At the same time, the compensation unit, weighing instrument or compensation weighing unit also determines whether the materials are the same batch of materials, and the weighing instrument or compensation weighing unit performs cumulative summation of the instantaneous weighing of the same batch of materials to obtain and display the total weight of the conveyed materials. The invention has the characteristics of high precision, good repeatability and durability, low cost and the like, and can be widely used in the fields of measurement and the like.
Description
技术领域technical field
本发明涉及一种自动称重技术，特别是涉及一种误差补偿方法与基于误差补偿的皮带秤。The invention relates to an automatic weighing technology, in particular to an error compensation method and a belt scale based on error compensation.
背景技术Background technique
在带式输送机连续输送物料过程中，输送带及其所承载物料需经过电子皮带秤进行称重：输送带及其所承载物料的总质量减去胶带质量得到物料质量；经过连续称量累计，即可得到所有被输送物料的总质量。在实际应用中，由于输送带是连续不断的，电子皮带秤所处称重区的输送带无法与非称重区输送带相分离，因而电子皮带秤的称重传感器所检测到的输送带及其所承载物料的总质量会受到相邻非称重区输送带与物料的影响，产生“皮带效应”。也就是说，皮带效应指的是输送带张力、输送带弹性模量、输送带截面惯性矩、称重托辊非准直度等参数的变化对称重准确度所造成的综合非线性影响。During the continuous material conveying process of the belt conveyor, the conveyor belt and the materials it carries need to be weighed by an electronic belt scale: the total mass of the conveyor belt and the materials it carries is subtracted from the mass of the belt to obtain the material quality; after continuous weighing, the accumulated , the total mass of all materials being conveyed can be obtained. In practical applications, since the conveyor belt is continuous, the conveyor belt in the weighing area where the electronic belt scale is located cannot be separated from the conveyor belt in the non-weighing area, so the conveyor belt detected by the load cell of the electronic belt scale and the The total mass of the material it carries will be affected by the adjacent non-weighing area conveyor belt and material, resulting in a "belt effect". That is to say, the belt effect refers to the comprehensive nonlinear influence caused by the change of parameters such as the tension of the conveyor belt, the elastic modulus of the conveyor belt, the moment of inertia of the conveyor belt section, and the misalignment of the weighing idler on the weighing accuracy.
业界公知的电子皮带秤称重力计算公式为：F＝nqLgcosθ+2TKD/L；其中，F为称重力，n为称重托辊组数，q为称重载荷线密度，L为托辊间距，g为重力加速度，θ为输送机倾角，T为输送带张力，K为输送带效应系数，D为称重托辊非准直度。该公式中，“2TKD/L”一项即为皮带效应引起的误差项。皮带效应引起的误差不仅具有非线性特征，而且与物料输送量之间的对应关系不确定。因此，在实际应用中，皮带效应导致皮带秤的称重准确度、重复性、耐久性等漂移不定，给生产厂家和用户都带来了一系列的麻烦。为解决这一系列的麻烦，一方面力求减小皮带效应的影响，对电子皮带秤进行精确的安装与调整，费时费力，效率低下；另一方面频繁地对电子皮带秤的进行实物校准，代价高昂。尽管如此，电子皮带秤的称重准确度和耐久性仍然不尽人意，阻碍了电子皮带秤的推广应用，尤其难以应用于贸易结算等重要场合。The well-known formula for calculating the weighing force of electronic belt scales in the industry is: F=nqLgcosθ+2TKD/L; among them, F is weighing force, n is the number of weighing idlers, q is the linear density of weighing load, L is the distance between idlers, g is the acceleration of gravity, θ is the inclination angle of the conveyor, T is the tension of the conveyor belt, K is the effect coefficient of the conveyor belt, and D is the misalignment of the weighing idler. In this formula, the term "2TKD/L" is the error term caused by the belt effect. The error caused by the belt effect not only has nonlinear characteristics, but also has an uncertain correspondence with the amount of material conveyed. Therefore, in practical applications, the belt effect causes the weighing accuracy, repeatability, and durability of the belt scale to drift, which brings a series of troubles to both the manufacturer and the user. In order to solve this series of troubles, on the one hand, strive to reduce the influence of the belt effect, and accurately install and adjust the electronic belt scale, which is time-consuming, laborious, and inefficient; on the other hand, frequent physical calibration of the electronic belt scale is expensive. high. Nevertheless, the weighing accuracy and durability of electronic belt scales are still unsatisfactory, which hinders the popularization and application of electronic belt scales, especially in important occasions such as trade settlement.
为进一步解决皮带效应问题，本领域研究人员开发了多种改善电子皮带秤称重准确度的方法和技术，总体上分为三类：第一类是尽量减小导致皮带效应的各因素绝对值，例如，规定电子皮带秤必须安装在输送带承载段张力最小的位置、减小称重托辊非准直度等；第二类是尽量使导致皮带效应的各因素值保持不变，通过在称重量程范围内多点校准来减轻其影响，例如，规定电子皮带秤必须安装在输送带承载段张力变化最小的位置、控制皮带张紧力使其保持恒定等；第三类是提高物料质量在称重信号中的占比，从而相对减小皮带效应的影响，例如，增加称重托辊数量、加长称重区长度等。实际上，这三类措施本质上是相同的，都是力求减小皮带效应引起的误差绝对值，无法从根本上彻底消除皮带效应。In order to further solve the belt effect problem, researchers in this field have developed a variety of methods and technologies to improve the weighing accuracy of electronic belt scales, which are generally divided into three categories: the first category is to minimize the absolute value of each factor that causes the belt effect , for example, it is stipulated that the electronic belt scale must be installed at the position where the tension of the load-bearing section of the conveyor belt is the smallest, reduce the misalignment of the weighing idler, etc.; Multi-point calibration within the weight range to reduce its impact, for example, it is stipulated that the electronic belt scale must be installed at the position where the tension change of the load-bearing section of the conveyor belt is the smallest, and the tension of the belt is controlled to keep it constant; the third category is to improve the quality of materials in The proportion in the weighing signal, so as to relatively reduce the influence of the belt effect, for example, increase the number of weighing idlers, lengthen the length of the weighing area, etc. In fact, these three types of measures are essentially the same, and they all strive to reduce the absolute value of the error caused by the belt effect, and cannot fundamentally eliminate the belt effect.
由此可见，在现有技术中，电子皮带秤存在着称重准确度、重复性、耐久性较低，安装、调整与校准成本高等问题。It can be seen that in the prior art, electronic belt scales have problems such as low weighing accuracy, repeatability, and durability, and high installation, adjustment, and calibration costs.
发明内容Contents of the invention
有鉴于此，本发明的主要目的在于提供一种准确度较高、重复性与耐久性较好、成本较低的误差补偿方法与基于误差补偿的皮带秤。In view of this, the main purpose of the present invention is to provide an error compensation method with high accuracy, good repeatability and durability, and low cost, and a belt scale based on error compensation.
为了达到上述目的，本发明提出的误差补偿方法为：In order to achieve the above object, the error compensation method proposed by the present invention is:
一种误差补偿方法，具体为：An error compensation method, specifically:
步骤1、获取第一称重单元发送的第一称重信号F1＝nqLgcosθ+2TKD1/L；其中，n为称重托辊组数，q为称重载荷线密度，L为托辊间距，g为重力加速度，θ为输送机倾角，T为皮带张力，K为皮带刚性系数，D1为第一称重单元的称重托辊非准直度。Step 1. Obtain the first weighing signal F 1 =nqLgcosθ+2TKD 1 /L sent by the first weighing unit; where, n is the number of sets of weighing idlers, q is the linear density of the weighing load, and L is the distance between idlers, g is the acceleration of gravity, θ is the inclination angle of the conveyor, T is the tension of the belt, K is the rigidity coefficient of the belt, and D 1 is the misalignment of the weighing idler of the first weighing unit.
步骤2、获取第二称重单元发送的第二称重信号F2＝nqLgcosθ+2TKD2/L；其中，D2为第二称重单元的称重托辊非准直度。Step 2. Obtain the second weighing signal F 2 =nqLgcosθ+2TKD 2 /L sent by the second weighing unit; wherein, D 2 is the misalignment degree of the weighing idler of the second weighing unit.
步骤3、获取补偿称重信号F3＝(F1×D2-F2×D1)/(D2-D1)；其中，D2≠D1。Step 3. Obtain the compensation weighing signal F 3 =(F 1 ×D 2 −F 2 ×D 1 )/(D 2 −D 1 ); wherein, D 2 ≠D 1 .
综上所述，本发明所述误差补偿方法对第一称重信号与第二称重信号进行补偿后，可以将称重计算公式F＝nqLgcosθ+2TKD/L中的误差项“2TKD/L”有效消除。这样，经过补偿后测量得到的称重不再因为外部飘忽不定的影响而存在准确度、重复性、耐久性低的问题。因此，本发明所述误差补偿方法具有准确度较高的特点。In summary, after the error compensation method of the present invention compensates the first weighing signal and the second weighing signal, the error term "2TKD/L" in the weighing calculation formula F=nqLgcosθ+2TKD/L can be Effectively eliminated. In this way, the measured weighing after compensation no longer has the problems of low accuracy, repeatability, and durability due to external erratic influences. Therefore, the error compensation method of the present invention has the characteristics of high accuracy.
为了达到上述目的，本发明提出的基于误差补偿的皮带秤的第一技术方案为：In order to achieve the above object, the first technical solution of the belt scale based on error compensation proposed by the present invention is:
一种基于误差补偿的皮带秤，包括第一称重单元、第二称重单元、速度传感器、补偿单元、称重仪表；其中，第一称重单元与第二称重单元沿皮带传送方向设置，且第一称重单元与第二称重单元之间的间距为s。A belt scale based on error compensation, comprising a first weighing unit, a second weighing unit, a speed sensor, a compensation unit, and a weighing instrument; wherein, the first weighing unit and the second weighing unit are arranged along the belt conveying direction , and the distance between the first weighing unit and the second weighing unit is s.
第一称重单元，用于将自身输出的第一称重信号F1＝nqLgcosθ+2TKD1/L发送至补偿单元；其中，n为称重托辊组数，q为称重载荷线密度，L为托辊间距，g为重力加速度，θ为输送机倾角，T为皮带张力，K为皮带刚性系数，D1为第一称重单元的称重托辊非准直度。The first weighing unit is used to send the first weighing signal F 1 =nqLgcosθ+2TKD 1 /L output by itself to the compensation unit; where n is the number of weighing idlers, q is the linear density of the weighing load, L is the idler spacing, g is the acceleration of gravity, θ is the inclination angle of the conveyor, T is the belt tension, K is the belt rigidity coefficient, and D 1 is the misalignment of the weighing idler of the first weighing unit.
第二称重单元，用于将自身输出的第二称重信号F2＝nqLgcosθ+2TKD2/L发送至补偿单元；其中，D2为第二称重单元的称重托辊非准直度。The second weighing unit is used to send the second weighing signal F 2 =nqLgcosθ+2TKD 2 /L output by itself to the compensation unit; wherein, D 2 is the misalignment degree of the weighing idler of the second weighing unit.
速度传感器，用于将检测得到的皮带传送速度v发送至补偿单元；a speed sensor, configured to send the detected belt transmission speed v to the compensation unit;
补偿单元，用于记录第一称重信号F1及收到第一称重信号F1的第一称重时间t1、第二称重信号F2及收到第二称重信号F2的第二称重时间t2；根据速度传感器发送的皮带传送速度v、第一称重单元与第二称重单元之间的间距s获取物料由第一称重单元位置运行至第二称重单元位置所需时间Δt，判断第一称重时间t1、第二称重时间t2之间的时差t1-t2与物料运行时间Δt是否相等：如果相等，则表明t1时刻经过第一称重单元的物料与t2时刻经过第二称重单元的物料为同一物料，之后，对第一称重信号F1、第二称重信号F2进行修正补偿，得到补偿称重信号F3＝(F1×D2-F2×D1)/(D2-D1)，将补偿称重信号F3发送至称重仪表；其中，D2≠D1。。Compensation unit for recording the first weighing signal F 1 and the first weighing time t 1 of receiving the first weighing signal F 1 , the second weighing signal F 2 and the time of receiving the second weighing signal F 2 The second weighing time t2 ; according to the belt transmission speed v sent by the speed sensor, the distance s between the first weighing unit and the second weighing unit, the material is obtained from the position of the first weighing unit to the second weighing unit The time required for the position Δt, judge whether the time difference t 1 -t 2 between the first weighing time t 1 and the second weighing time t 2 is equal to the material running time Δt: if they are equal, it means that the time t 1 has passed the first time The material in the weighing unit is the same material as the material passing through the second weighing unit at time t2 . Afterwards, the first weighing signal F 1 and the second weighing signal F 2 are corrected and compensated to obtain the compensated weighing signal F 3 =(F 1 ×D 2 −F 2 ×D 1 )/(D 2 −D 1 ), sending the compensation weighing signal F 3 to the weighing instrument; wherein, D 2 ≠D 1 . .
称重仪表，用于根据补偿单元发送的补偿称重信号F3获取物料瞬时重量，累计该物料的瞬时重量并显示累计得到的物料总重量。The weighing instrument is used to obtain the instantaneous weight of the material according to the compensation weighing signal F3 sent by the compensation unit, accumulate the instantaneous weight of the material and display the accumulated total weight of the material.
综上所述，本发明所述第一方案对应的基于误差补偿的皮带秤中，补偿单元对第一称重信号与第二称重信号进行补偿后，可以将称重计算公式F＝nqLgcosθ+2TKD/L中的误差项“2TKD/L”有效消除。这样，经过补偿后测量得到的称重不再因为外部飘忽不定的影响而存在准确度、重复性、耐久性低的问题。因此，本发明所述第一种组成结构对应的基于误差补偿的皮带秤具有准确度较高、重复性与耐久性较好、成本较低的特点。In summary, in the belt scale based on error compensation corresponding to the first scheme of the present invention, after the compensation unit compensates the first weighing signal and the second weighing signal, the weighing calculation formula F=nqLgcosθ+ The error term "2TKD/L" in 2TKD/L is effectively eliminated. In this way, the measured weighing after compensation no longer has the problems of low accuracy, repeatability, and durability due to external erratic influences. Therefore, the belt scale based on error compensation corresponding to the first composition structure of the present invention has the characteristics of high accuracy, good repeatability and durability, and low cost.
为了达到上述目的，本发明提出的基于误差补偿的皮带秤的第二技术方案为：In order to achieve the above object, the second technical solution of the belt scale based on error compensation proposed by the present invention is:
一种基于误差补偿的皮带秤，包括第一称重单元、第二称重单元、速度传感器、补偿单元、称重仪表；其中，第一称重单元与第二称重单元沿皮带传送方向设置，且第一称重单元与第二称重单元之间的间距为s。A belt scale based on error compensation, comprising a first weighing unit, a second weighing unit, a speed sensor, a compensation unit, and a weighing instrument; wherein, the first weighing unit and the second weighing unit are arranged along the belt conveying direction , and the distance between the first weighing unit and the second weighing unit is s.
第一称重单元，用于将自身输出的第一称重信号F1＝nqLgcosθ+2TKD1/L发送至补偿单元；其中，n为称重托辊组数，q为称重载荷线密度，L为托辊间距，g为重力加速度，θ为输送机倾角，T为皮带张力，K为皮带刚性系数，D1为第一称重单元的称重托辊非准直度。The first weighing unit is used to send the first weighing signal F 1 =nqLgcosθ+2TKD 1 /L output by itself to the compensation unit; where n is the number of weighing idlers, q is the linear density of the weighing load, L is the idler spacing, g is the acceleration of gravity, θ is the inclination angle of the conveyor, T is the belt tension, K is the belt rigidity coefficient, and D 1 is the misalignment of the weighing idler of the first weighing unit.
第二称重单元，用于将自身输出的第二称重信号F2＝nqLgcosθ+2TKD2/L发送至补偿单元；其中，D2为第二称重单元的称重托辊非准直度。The second weighing unit is used to send the second weighing signal F 2 =nqLgcosθ+2TKD 2 /L output by itself to the compensation unit; wherein, D 2 is the misalignment degree of the weighing idler of the second weighing unit.
速度传感器，用于将检测得到的皮带传送速度v发送至称重仪表。The speed sensor is used to send the detected belt conveying speed v to the weighing instrument.
补偿单元，用于按照称重仪表发送的补偿指令，对第一称重信号F1、第二称重信号F2进行修正补偿，得到补偿称重信号F3＝(F1×D2-F2×D1)/(D2-D1)，将补偿称重信号F3发送至称重仪表；其中，D2≠D1。The compensation unit is used to correct and compensate the first weighing signal F 1 and the second weighing signal F 2 according to the compensation instruction sent by the weighing instrument, so as to obtain the compensation weighing signal F 3 =(F 1 ×D 2 -F 2 ×D 1 )/(D 2 −D 1 ), sending the compensation weighing signal F 3 to the weighing instrument; wherein, D 2 ≠D 1 .
称重仪表，用于记录第一称重信号F1及收到第一称重信号F1的第一称重时间t1、第二称重信号F2及收到第二称重信号F2的第二称重时间t2；根据速度传感器发送的皮带传送速度v、第一称重单元与第二称重单元之间的间距s获取物料由第一称重单元位置运行至第二称重单元位置所需时间Δt，判断第一称重时间t1、第二称重时间t2之间的时差t1-t2与物料运行时间Δt是否相等：如果相等，则表明t1时刻经过第一称重单元的物料与t2时刻经过第二称重单元的物料为同一物料，并向补偿单元发送补偿指令；根据补偿单元发送的补偿称重信号F3获取物料瞬时重量，累计该物料的瞬时重量并显示累计得到的物料总重量。Weighing instrument, used to record the first weighing signal F 1 and the first weighing time t 1 when the first weighing signal F 1 is received, the second weighing signal F 2 and the second weighing signal F 2 received The second weighing time t 2 ; According to the belt transmission speed v sent by the speed sensor, the distance s between the first weighing unit and the second weighing unit, the material is obtained from the position of the first weighing unit to the second weighing unit The time required for the unit position Δt, judge whether the time difference t 1 -t 2 between the first weighing time t 1 and the second weighing time t 2 is equal to the material running time Δt: if they are equal, it means that the time t 1 has passed the first time The material in the first weighing unit is the same material as the material passing through the second weighing unit at time t2 , and a compensation command is sent to the compensation unit ; the instantaneous weight of the material is obtained according to the compensation weighing signal F3 sent by the compensation unit, and the total weight of the material is accumulated Instantaneous weight and display the accumulated total weight of the material.
综上所述，本发明所述第二方案对应的基于误差补偿的皮带秤中，补偿单元对第一称重信号与第二称重信号进行补偿后，可以将称重计算公式F＝nqLgcosθ+2TKD/L中的误差项“2TKD/L”有效消除。这样，经过补偿后测量得到的称重不再因为外部飘忽不定的影响而存在准确度、重复性、耐久性低的问题。因此，本发明所述第二方案对应的基于误差补偿的皮带秤具有准确度较高、重复性与耐久性较好、成本较低的特点。In summary, in the belt scale based on error compensation corresponding to the second scheme of the present invention, after the compensation unit compensates the first weighing signal and the second weighing signal, the weighing calculation formula F=nqLgcosθ+ The error term "2TKD/L" in 2TKD/L is effectively eliminated. In this way, the measured weighing after compensation no longer has the problems of low accuracy, repeatability, and durability due to external erratic influences. Therefore, the belt scale based on error compensation corresponding to the second solution of the present invention has the characteristics of high accuracy, good repeatability and durability, and low cost.
为了达到上述目的，本发明提出的基于误差补偿的皮带秤的第三技术方案为：In order to achieve the above object, the third technical solution of the belt scale based on error compensation proposed by the present invention is:
一种基于误差补偿的皮带秤，包括第一称重单元、第二称重单元、速度传感器、补偿称重单元；其中，第一称重单元与第二称重单元沿皮带传送方向设置，且第一称重单元与第二称重单元之间的间距为s。A belt scale based on error compensation, comprising a first weighing unit, a second weighing unit, a speed sensor, and a compensation weighing unit; wherein, the first weighing unit and the second weighing unit are arranged along the belt conveying direction, and The distance between the first weighing unit and the second weighing unit is s.
第一称重单元，用于将自身输出的第一称重信号F1＝nqLgcosθ+2TKD1/L发送至补偿称重单元；其中，n为称重托辊组数，q为称重载荷线密度，L为托辊间距，g为重力加速度，θ为输送机倾角，T为皮带张力，K为皮带刚性系数，D1为第一称重单元的称重托辊非准直度。The first weighing unit is used to send the first weighing signal F 1 =nqLgcosθ+2TKD 1 /L output by itself to the compensation weighing unit; wherein, n is the number of weighing idlers, and q is the linear density of the weighing load , L is the idler spacing, g is the acceleration of gravity, θ is the inclination angle of the conveyor, T is the belt tension, K is the belt rigidity coefficient, and D 1 is the misalignment of the weighing idler of the first weighing unit.
第二称重单元，用于将自身输出的第二称重信号F2＝nqLgcosθ+2TKD2/L发送至补偿称重单元；其中，D2为第二称重单元的称重托辊非准直度。The second weighing unit is used to send the second weighing signal F 2 =nqLgcosθ+2TKD 2 /L output by itself to the compensation weighing unit; wherein, D 2 is the non-alignment of the weighing idler of the second weighing unit Spend.
速度传感器，用于将检测得到的皮带传送速度v发送至补偿称重单元。The speed sensor is used to send the detected belt conveying speed v to the compensating weighing unit.
补偿称重单元，用于记录第一称重信号F1及收到第一称重信号F1的第一称重时间t1、第二称重信号F2及收到第二称重信号F2的第二称重时间t2；根据速度传感器发送的皮带传送速度v、第一称重单元与第二称重单元之间的间距s获取物料由第一称重单元位置运行至第二称重单元位置所需时间Δt，判断第一称重时间t1、第二称重时间t2之间的时差t1-t2与物料运行时间Δt是否相等：如果相等，则表明t1时刻经过第一称重单元的物料与t2时刻经过第二称重单元的物料为同一物料，之后，对第一称重信号F1、第二称重信号F2进行修正补偿，得到补偿称重信号F3＝(F1×D2-F2×D1)/(D2-D1)；根据补偿称重信号F3获取物料瞬时重量，累计该物料的瞬时重量并显示累计得到的物料总重量；其中，D2≠D1。Compensation weighing unit, used to record the first weighing signal F 1 and the first weighing time t 1 when the first weighing signal F 1 is received, the second weighing signal F 2 and the second weighing signal F received 2 ’s second weighing time t 2 ; according to the belt conveying speed v sent by the speed sensor and the distance s between the first weighing unit and the second weighing unit, the material is moved from the position of the first weighing unit to the second weighing unit. The time required for the position of the heavy unit Δt, judge whether the time difference t 1 -t 2 between the first weighing time t 1 and the second weighing time t 2 is equal to the material running time Δt: if they are equal, it means that time t 1 has passed The material in the first weighing unit and the material passing through the second weighing unit at time t2 are the same material. After that, the first weighing signal F 1 and the second weighing signal F 2 are corrected and compensated to obtain the compensated weighing signal F 3 ＝(F 1 ×D 2 -F 2 ×D 1 )/(D 2 -D 1 ); Acquire the instantaneous weight of the material according to the compensation weighing signal F 3 , accumulate the instantaneous weight of the material and display the accumulated total material Weight; where D 2 ≠D 1 .
综上所述，本发明所述第三方案对应的基于误差补偿的皮带秤中，补偿称重单元对第一称重信号与第二称重信号进行补偿后，可以将称重计算公式F＝nqLgcosθ+2TKD/L中的误差项“2TKD/L”有效消除。这样，经过补偿后测量得到的称重不再因为外部飘忽不定的影响而存在准确度、重复性、耐久性低的问题。因此，本发明所述第三方案对应的基于误差补偿的皮带秤具有准确度较高、重复性与耐久性较好、成本较低的特点。In summary, in the belt scale based on error compensation corresponding to the third solution of the present invention, after the compensation weighing unit compensates the first weighing signal and the second weighing signal, the weighing calculation formula F= The error term "2TKD/L" in nqLgcosθ+2TKD/L is effectively eliminated. In this way, the measured weighing after compensation no longer has the problems of low accuracy, repeatability, and durability due to external erratic influences. Therefore, the belt scale based on error compensation corresponding to the third solution of the present invention has the characteristics of high accuracy, good repeatability and durability, and low cost.
附图说明Description of drawings
图1是本发明所述误差补偿方法的流程示意图。Fig. 1 is a schematic flow chart of the error compensation method of the present invention.
图2本发明所述基于误差补偿的皮带秤的第一种组成结构示意图。Fig. 2 is a schematic diagram of the first composition and structure of the belt scale based on error compensation according to the present invention.
图3是本发明所述基于误差补偿的皮带秤的第二种组成结构示意图。Fig. 3 is a schematic diagram of the second structure of the belt scale based on error compensation according to the present invention.
图4是本发明所述基于误差补偿的皮带秤的第三种组成结构示意图。Fig. 4 is a schematic diagram of the third composition and structure of the belt scale based on error compensation according to the present invention.
具体实施方式detailed description
为使本发明的目的、技术方案和优点更加清楚，下面将结合附图及具体实施例对本发明作进一步地详细描述。In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
图1是本发明所述误差补偿方法的流程示意图。如图1所示，本发明所述误差补偿方法，具体为：Fig. 1 is a schematic flow chart of the error compensation method of the present invention. As shown in Figure 1, the error compensation method of the present invention is specifically:
步骤1、获取第一称重单元发送的第一称重信号F1＝nqLgcosθ+2TKD1/L；其中，n为称重托辊组数，q为称重载荷线密度，L为托辊间距，g为重力加速度，θ为输送机倾角，T为皮带张力，K为皮带刚性系数，D1为第一称重单元的称重托辊非准直度。Step 1. Obtain the first weighing signal F 1 =nqLgcosθ+2TKD 1 /L sent by the first weighing unit; where, n is the number of sets of weighing idlers, q is the linear density of the weighing load, and L is the distance between idlers, g is the acceleration of gravity, θ is the inclination angle of the conveyor, T is the tension of the belt, K is the rigidity coefficient of the belt, and D 1 is the misalignment of the weighing idler of the first weighing unit.
步骤2、获取第二称重单元发送的第二称重信号F2＝nqLgcosθ+2TKD2/L；其中，D2为第二称重单元的称重托辊非准直度。Step 2. Obtain the second weighing signal F 2 =nqLgcosθ+2TKD 2 /L sent by the second weighing unit; wherein, D 2 is the misalignment degree of the weighing idler of the second weighing unit.
步骤3、获取补偿称重信号F3＝(F1×D2-F2×D1)/(D2-D1)；其中，D2≠D1。Step 3. Obtain the compensation weighing signal F 3 =(F 1 ×D 2 −F 2 ×D 1 )/(D 2 −D 1 ); wherein, D 2 ≠D 1 .
总之，本发明所述误差补偿方法对第一称重信号与第二称重信号进行补偿后，可以将称重计算公式F＝nqLgcosθ+2TKD/L中的误差项“2TKD/L”有效消除。这样，经过补偿后测量得到的称重不再因为外部飘忽不定的影响而存在准确度、重复性、耐久性低的问题。因此，本发明所述误差补偿方法具有准确度较高的特点。In short, after the error compensation method of the present invention compensates the first weighing signal and the second weighing signal, the error term "2TKD/L" in the weighing calculation formula F=nqLgcosθ+2TKD/L can be effectively eliminated. In this way, the measured weighing after compensation no longer has the problems of low accuracy, repeatability, and durability due to external erratic influences. Therefore, the error compensation method of the present invention has the characteristics of high accuracy.
图2是本发明所述基于误差补偿的皮带秤的第一种组成结构示意图。如图2所示，本发明所述基于误差补偿的皮带秤包括：第一称重单元1、第二称重单元5、速度传感器2、补偿单元4、称重仪表3；其中，第一称重单元1与第二称重单元5沿皮带传送方向设置，且第一称重单元1与第二称重单元5之间的间距为s；Fig. 2 is a schematic diagram of the composition and structure of the first type of belt scale based on error compensation according to the present invention. As shown in Figure 2, the belt scale based on error compensation of the present invention includes: a first weighing unit 1, a second weighing unit 5, a speed sensor 2, a compensation unit 4, and a weighing instrument 3; wherein, the first weighing unit The weighing unit 1 and the second weighing unit 5 are arranged along the belt conveying direction, and the distance between the first weighing unit 1 and the second weighing unit 5 is s;
第一称重单元1，用于将自身输出的第一称重信号F1＝nqLgcosθ+2TKD1/L发送至补偿单元4；其中，n为称重托辊组数，q为称重载荷线密度，L为托辊间距，g为重力加速度，θ为输送机倾角，T为皮带张力，K为皮带刚性系数，D1为第一称重单元的称重托辊非准直度。The first weighing unit 1 is used to send the first weighing signal F 1 =nqLgcosθ+2TKD 1 /L output by itself to the compensation unit 4; wherein, n is the number of weighing idlers, and q is the linear density of the weighing load , L is the idler spacing, g is the acceleration of gravity, θ is the inclination angle of the conveyor, T is the belt tension, K is the belt rigidity coefficient, and D 1 is the misalignment of the weighing idler of the first weighing unit.
第二称重单元5，用于将自身输出的第二称重信号F2＝nqLgcosθ+2TKD2/L发送至补偿单元4；其中，D2为第二称重单元的称重托辊非准直度。The second weighing unit 5 is used to send the second weighing signal F 2 =nqLgcosθ+2TKD 2 /L output by itself to the compensation unit 4; wherein, D 2 is the non-alignment of the weighing roller of the second weighing unit Spend.
速度传感器2，用于将检测得到的皮带传送速度v发送至补偿单元4。The speed sensor 2 is used to send the detected belt conveying speed v to the compensation unit 4 .
补偿单元4，用于记录第一称重信号F1及收到第一称重信号F1的第一称重时间t1、第二称重信号F2及收到第二称重信号F2的第二称重时间t2；根据速度传感器发送的皮带传送速度v、第一称重单元与第二称重单元之间的间距s获取物料由第一称重单元位置运行至第二称重单元位置所需时间Δt，判断第一称重时间t1、第二称重时间t2之间的时差t1-t2与物料运行时间Δt是否相等：如果相等，则表明t1时刻经过第一称重单元的物料与t2时刻经过第二称重单元的物料为同一物料，之后，对第一称重信号F1、第二称重信号F2进行修正补偿，得到补偿称重信号F3＝(F1×D2-F2×D1)/(D2-D1)，将补偿称重信号F3发送至称重仪表3。这里，D2≠D1。The compensation unit 4 is used to record the first weighing signal F 1 and the first weighing time t 1 when the first weighing signal F 1 is received, the second weighing signal F 2 and the second weighing signal F 2 received The second weighing time t 2 ; According to the belt transmission speed v sent by the speed sensor, the distance s between the first weighing unit and the second weighing unit, the material is obtained from the position of the first weighing unit to the second weighing unit The time required for the unit position Δt, judge whether the time difference t 1 -t 2 between the first weighing time t 1 and the second weighing time t 2 is equal to the material running time Δt: if they are equal, it means that the time t 1 has passed the first time The material in the first weighing unit is the same material as the material passing through the second weighing unit at time t2 . After that, the first weighing signal F 1 and the second weighing signal F 2 are corrected and compensated to obtain the compensated weighing signal F 3 = (F 1 ×D 2 −F 2 ×D 1 )/(D 2 −D 1 ), sending the compensation weighing signal F 3 to the weighing instrument 3 . Here, D 2 ≠D 1 .
称重仪表3，用于按照补偿单元4发送的补偿称重信号F3获取物料瞬时重量，累计该物料的瞬时重量并显示累计得到的物料总重量。The weighing instrument 3 is used to obtain the instantaneous weight of the material according to the compensation weighing signal F3 sent by the compensation unit 4, accumulate the instantaneous weight of the material and display the accumulated total weight of the material.
本发明中，物料会经过皮带不断进行输送，称重仪表3会对皮带上的物料瞬时重量累计求和，最终累计得到物料的总重量。In the present invention, the material will be continuously conveyed by the belt, and the weighing instrument 3 will accumulate and sum the instantaneous weight of the material on the belt, and finally accumulate the total weight of the material.
本发明中，补偿单元4、称重仪表3均为单片机控制器或可编程控制器。In the present invention, both the compensation unit 4 and the weighing instrument 3 are single-chip controllers or programmable controllers.
总之，本发明所述第一种组成结构对应的基于误差补偿的皮带秤中，补偿单元4对第一称重信号与第二称重信号进行补偿后，可以将称重计算公式F＝nqLgcosθ+2TKD/L中的误差项“2TKD/L”有效消除。这样，经过补偿后测量得到的称重不再因为外部飘忽不定的影响而存在准确度、重复性、耐久性低的问题。因此，本发明所述第一种组成结构对应的基于误差补偿的皮带秤具有准确度较高、重复性与耐久性较好、成本较低的特点。In short, in the belt scale based on error compensation corresponding to the first composition structure of the present invention, after the compensation unit 4 compensates the first weighing signal and the second weighing signal, the weighing calculation formula F=nqLgcosθ+ The error term "2TKD/L" in 2TKD/L is effectively eliminated. In this way, the measured weighing after compensation no longer has the problems of low accuracy, repeatability, and durability due to external erratic influences. Therefore, the belt scale based on error compensation corresponding to the first composition structure of the present invention has the characteristics of high accuracy, good repeatability and durability, and low cost.
图3是本发明所述基于误差补偿的皮带秤的第二种组成结构示意图。如图3所示，本发明所述基于误差补偿的皮带秤包括：第一称重单元1、第二称重单元5、速度传感器2、补偿单元8、称重仪表7；其中，第一称重单元1与第二称重单元5沿皮带传送方向设置，且第一称重单元1与第二称重单元5之间的间距为s。Fig. 3 is a schematic diagram of the second structure of the belt scale based on error compensation according to the present invention. As shown in Figure 3, the belt scale based on error compensation of the present invention includes: a first weighing unit 1, a second weighing unit 5, a speed sensor 2, a compensation unit 8, and a weighing instrument 7; wherein, the first weighing unit The weighing unit 1 and the second weighing unit 5 are arranged along the conveying direction of the belt, and the distance between the first weighing unit 1 and the second weighing unit 5 is s.
第一称重单元1，用于将自身输出的第一称重信号F1＝nqLgcosθ+2TKD1/L发送至补偿单元8；其中，n为称重托辊组数，q为称重载荷线密度，L为托辊间距，g为重力加速度，θ为输送机倾角，T为皮带张力，K为皮带刚性系数，D1为第一称重单元的称重托辊非准直度。The first weighing unit 1 is used to send the first weighing signal F 1 =nqLgcosθ+2TKD 1 /L output by itself to the compensation unit 8; wherein, n is the number of weighing idlers, and q is the linear density of the weighing load , L is the idler spacing, g is the acceleration of gravity, θ is the inclination angle of the conveyor, T is the belt tension, K is the belt rigidity coefficient, and D 1 is the misalignment of the weighing idler of the first weighing unit.
第二称重单元5，用于将自身输出的第二称重信号F2＝nqLgcosθ+2TKD2/L发送至补偿单元8；其中，D2为第二称重单元的称重托辊非准直度。The second weighing unit 5 is used to send the second weighing signal F 2 =nqLgcosθ+2TKD 2 /L output by itself to the compensation unit 8; wherein, D2 is the misalignment degree of the weighing idler roller of the second weighing unit .
速度传感器2，用于将检测得到的皮带传送速度v发送至称重仪表3。The speed sensor 2 is used to send the detected belt transmission speed v to the weighing instrument 3 .
补偿单元8，用于按照称重仪表7发送的补偿指令，对第一称重信号F1、第二称重信号F2进行修正补偿，得到补偿称重信号F3＝(F1×D2-F2×D1)/(D2-D1)，将补偿称重信号F3发送至称重仪表7；其中，D2≠D1。The compensation unit 8 is used to correct and compensate the first weighing signal F 1 and the second weighing signal F 2 according to the compensation instruction sent by the weighing instrument 7, so as to obtain the compensation weighing signal F 3 =(F 1 ×D 2 -F 2 ×D 1 )/(D 2 −D 1 ), sending the compensation weighing signal F 3 to the weighing instrument 7; wherein, D 2 ≠D 1 .
称重仪表7，用于记录第一称重信号F1及收到第一称重信号F1的第一称重时间t1、第二称重信号F2及收到第二称重信号F2的第二称重时间t2；根据速度传感器发送的皮带传送速度v、第一称重单元与第二称重单元之间的间距s获取物料由第一称重单元位置运行至第二称重单元位置所需时间Δt，判断第一称重时间t1、第二称重时间t2之间的时差t1-t2与物料运行时间Δt是否相等：如果相等，则表明t1时刻经过第一称重单元的物料与t2时刻经过第二称重单元的物料为同一物料，并向补偿单元8发送补偿指令；根据补偿单元8发送的补偿称重信号F3获取物料瞬时重量，累计该物料的瞬时重量并显示累计得到的物料总重量。The weighing instrument 7 is used to record the first weighing signal F 1 and the first weighing time t 1 when the first weighing signal F 1 is received, the second weighing signal F 2 and the second weighing signal F received 2 ’s second weighing time t 2 ; according to the belt conveying speed v sent by the speed sensor and the distance s between the first weighing unit and the second weighing unit, the material is moved from the position of the first weighing unit to the second weighing unit. The time required for the position of the heavy unit Δt, judge whether the time difference t 1 -t 2 between the first weighing time t 1 and the second weighing time t 2 is equal to the material running time Δt: if they are equal, it means that time t 1 has passed The material of the first weighing unit is the same material as the material passing through the second weighing unit at time t2 , and a compensation command is sent to the compensation unit 8 ; the instantaneous weight of the material is obtained according to the compensation weighing signal F3 sent by the compensation unit 8, and the cumulative The instantaneous weight of the material and display the accumulated total weight of the material.
本发明中，物料会经过皮带不断进行输送，称重仪表7会对皮带上的物料瞬时重量累计求和，最终累计得到物料的总重量。In the present invention, the material will be continuously conveyed through the belt, and the weighing instrument 7 will accumulate and sum the instantaneous weight of the material on the belt, and finally accumulate the total weight of the material.
本发明中，补偿单元8、称重仪表7均为单片机控制器或可编程控制器。In the present invention, both the compensation unit 8 and the weighing instrument 7 are single-chip controllers or programmable controllers.
总之，本发明所述第二种组成结构对应的基于误差补偿的皮带秤中，补偿单元7对第一称重信号与第二称重信号进行补偿后，可以将称重计算公式F＝nqLgcosθ+2TKD/L中的误差项“2TKD/L”有效消除。这样，经过补偿后测量得到的称重不再因为外部飘忽不定的影响而存在准确度、重复性、耐久性低的问题。因此，本发明所述第二种组成结构对应的基于误差补偿的皮带秤具有准确度较高、重复性与耐久性较好、成本较低的特点。In short, in the belt scale based on error compensation corresponding to the second composition structure of the present invention, after the compensation unit 7 compensates the first weighing signal and the second weighing signal, the weighing calculation formula F=nqLgcosθ+ The error term "2TKD/L" in 2TKD/L is effectively eliminated. In this way, the measured weighing after compensation no longer has the problems of low accuracy, repeatability, and durability due to external erratic influences. Therefore, the belt scale based on error compensation corresponding to the second composition structure of the present invention has the characteristics of high accuracy, good repeatability and durability, and low cost.
图4是本发明所述基于误差补偿的皮带秤的第三种组成结构示意图。如图4所示，本发明所述一种基于误差补偿的皮带秤包括：第一称重单元1、第二称重单元5、速度传感器2、补偿称重单元6；其中，第一称重单元1与第二称重单元5沿皮带传送方向设置，且第一称重单元1与第二称重单元5之间的间距为s。Fig. 4 is a schematic diagram of the third composition and structure of the belt scale based on error compensation according to the present invention. As shown in Figure 4, a kind of belt scale based on error compensation of the present invention comprises: first weighing unit 1, second weighing unit 5, speed sensor 2, compensation weighing unit 6; Wherein, the first weighing The unit 1 and the second weighing unit 5 are arranged along the conveying direction of the belt, and the distance between the first weighing unit 1 and the second weighing unit 5 is s.
第一称重单元1，用于将自身输出的第一称重信号F1＝nqLgcosθ+2TKD1/L发送至补偿称重单元6；其中，n为称重托辊组数，q为称重载荷线密度，L为托辊间距，g为重力加速度，θ为输送机倾角，T为皮带张力，K为皮带刚性系数，D1为第一称重单元的称重托辊非准直度。The first weighing unit 1 is used to send the first weighing signal F 1 =nqLgcosθ+2TKD 1 /L output by itself to the compensation weighing unit 6; wherein, n is the number of weighing idler groups, and q is the weighing load Linear density, L is the idler spacing, g is the acceleration of gravity, θ is the inclination angle of the conveyor, T is the belt tension, K is the belt rigidity coefficient, and D1 is the misalignment of the weighing idler of the first weighing unit.
第二称重单元5，用于将自身输出的第二称重信号F2＝nqLgcosθ+2TKD2/L发送至补偿称重单元6；其中，D2为第二称重单元的称重托辊非准直度。The second weighing unit 5 is used to send the second weighing signal F 2 =nqLgcosθ+2TKD 2 /L output by itself to the compensation weighing unit 6; wherein, D 2 is the weighing idler of the second weighing unit. Collimation.
速度传感器2，用于将检测得到的皮带传送速度v发送至补偿称重单元6。The speed sensor 2 is used to send the detected belt conveying speed v to the compensation weighing unit 6 .
补偿称重单元6，用于记录第一称重信号F1及收到第一称重信号F1的第一称重时间t1、第二称重信号F2及收到第二称重信号F2的第二称重时间t2；根据速度传感器发送的皮带传送速度v、第一称重单元与第二称重单元之间的间距s获取物料由第一称重单元位置运行至第二称重单元位置所需时间Δt，判断第一称重时间t1、第二称重时间t2之间的时差t1-t2与物料运行时间Δt是否相等：如果相等，则表明t1时刻经过第一称重单元的物料与t2时刻经过第二称重单元的物料为同一物料；之后，对第一称重信号F1、第二称重信号F2进行修正补偿，得到补偿称重信号F3＝(F1×D2-F2×D1)/(D2-D1)；根据补偿称重信号F3获取物料瞬时重量，累计该物料的瞬时重量并显示累计得到的物料总重量；其中，D2≠D1。The compensation weighing unit 6 is used to record the first weighing signal F 1 and the first weighing time t 1 when the first weighing signal F 1 is received, the second weighing signal F 2 and the second weighing signal received The second weighing time t2 of F2; according to the belt transmission speed v sent by the speed sensor and the distance s between the first weighing unit and the second weighing unit, the material is moved from the position of the first weighing unit to the second The time required for the position of the weighing unit Δt, judge whether the time difference t 1 -t 2 between the first weighing time t 1 and the second weighing time t 2 is equal to the material running time Δt: if they are equal, it indicates the time t 1 The material passing through the first weighing unit and the material passing through the second weighing unit at time t2 are the same material; after that, the first weighing signal F 1 and the second weighing signal F 2 are corrected and compensated to obtain the compensation weighing Signal F 3 =(F 1 ×D 2 -F 2 ×D 1 )/(D 2 -D 1 ); obtain the instantaneous weight of the material according to the compensation weighing signal F 3 , accumulate the instantaneous weight of the material and display the accumulated material Total weight; where D 2 ≠D 1 .
本发明中，补偿称重单元6为单片机控制器或可编程控制器。In the present invention, the compensation weighing unit 6 is a single-chip controller or a programmable controller.
本发明中，物料会经过皮带不断进行输送，补偿称重单元6会对皮带上的物料瞬时重量累计求和，最终累计得到物料的总重量。In the present invention, the material will be continuously transported through the belt, and the compensation weighing unit 6 will accumulate and sum the instantaneous weight of the material on the belt, and finally accumulate the total weight of the material.
总之，本发明所述第三种组成结构对应的基于误差补偿的皮带秤中，补偿称重单元对第一称重信号与第二称重信号进行补偿后，可以将称重计算公式F＝nqLgcosθ+2TKD/L中的误差项“2TKD/L”有效消除。这样，经过补偿后测量得到的称重不再因为外部飘忽不定的影响而存在准确度、重复性、耐久性低的问题。因此，本发明所述第三种组成结构对应的基于误差补偿的皮带秤具有准确度较高、重复性与耐久性较好、成本较低的特点。In short, in the belt scale based on error compensation corresponding to the third composition structure of the present invention, after the compensation weighing unit compensates the first weighing signal and the second weighing signal, the weighing calculation formula F=nqLgcosθ The error term "2TKD/L" in +2TKD/L is effectively eliminated. In this way, the measured weighing after compensation no longer has the problems of low accuracy, repeatability, and durability due to external erratic influences. Therefore, the belt scale based on error compensation corresponding to the third composition structure of the present invention has the characteristics of high accuracy, good repeatability and durability, and low cost.
采用上述误差补偿方法或基于误差补偿的皮带秤对同批样品物料进行称重试验，不同皮带张力情况下的试验分别进行三次试验，试验情况如表1：Using the above-mentioned error compensation method or a belt scale based on error compensation to carry out weighing tests on the same batch of sample materials, the tests under different belt tension conditions were carried out three times, and the test conditions are shown in Table 1:
表1样品物料称重试验记录表Table 1 Sample Material Weighing Test Record Form
由表1可知，尽管皮带张力变化幅度较大，但采用本发明所述基于误差补偿方法对样品物料进行称重后，样品物料重量非常稳定，几乎不再受皮带张力的影响，本发明所述误差补偿方法与基于误差补偿的皮带秤能够有效消除皮带效应引起的飘忽不定的非线性影响，提高了称重准确性以及耐久性、重复性。It can be seen from Table 1 that although the belt tension varies greatly, after the sample material is weighed using the error compensation method of the present invention, the weight of the sample material is very stable and is almost no longer affected by the belt tension. The error compensation method and the belt scale based on error compensation can effectively eliminate the erratic nonlinear influence caused by the belt effect, and improve the weighing accuracy, durability and repeatability.
综上所述，以上仅为本发明的较佳实施例而已，并非用于限定本发明的保护范围。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。To sum up, the above are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710234879.XA CN107091677B (en) | 2017-04-03 | 2017-04-03 | An Error Compensation Method and Belt Scale Based on Error Compensation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710234879.XA CN107091677B (en) | 2017-04-03 | 2017-04-03 | An Error Compensation Method and Belt Scale Based on Error Compensation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107091677A true CN107091677A (en) | 2017-08-25 |
| CN107091677B CN107091677B (en) | 2020-08-04 |
Family
ID=59636960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710234879.XA Expired - Fee Related CN107091677B (en) | 2017-04-03 | 2017-04-03 | An Error Compensation Method and Belt Scale Based on Error Compensation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107091677B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108489591A (en) * | 2018-03-21 | 2018-09-04 | 郑州金恒电子技术有限公司 | A kind of reinspection method of weighing having error compensation |
| CN112050916A (en) * | 2020-06-22 | 2020-12-08 | 华东理工大学 | Method for measuring total mass of material based on vibration frequency of weighing carrier roller |
| CN114061727A (en) * | 2021-11-11 | 2022-02-18 | 吉林烟草工业有限责任公司 | Method for monitoring weighing abnormity of belt scale |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101435718A (en) * | 2008-12-22 | 2009-05-20 | 徐州市三原技术产业有限公司 | Multiple-sensor information fusion apperceive compensation method and system of electronic belt weigher |
| CN202048964U (en) * | 2010-12-29 | 2011-11-23 | 南京三埃工控股份有限公司 | Tilt angle compensation arrangement of belt scale |
| CN102706435A (en) * | 2012-06-27 | 2012-10-03 | 铜陵华飞电子科技有限公司 | Temperature compensation metering device for belt weigher display controller |
| US20130219985A1 (en) * | 2010-11-18 | 2013-08-29 | Saimo Electric Company Limited | High precision belt weighing device and method |
| CN104154974A (en) * | 2014-07-23 | 2014-11-19 | 赛摩电气股份有限公司 | High-stability electronic belt scale and stability compensating method thereof |
| CN104180889A (en) * | 2014-07-23 | 2014-12-03 | 赛摩电气股份有限公司 | Linear compensation method for electronic belt scale |
| JP5904715B2 (en) * | 2011-03-28 | 2016-04-20 | 大和製衡株式会社 | Conveyor scale |
-
2017
- 2017-04-03 CN CN201710234879.XA patent/CN107091677B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101435718A (en) * | 2008-12-22 | 2009-05-20 | 徐州市三原技术产业有限公司 | Multiple-sensor information fusion apperceive compensation method and system of electronic belt weigher |
| US20130219985A1 (en) * | 2010-11-18 | 2013-08-29 | Saimo Electric Company Limited | High precision belt weighing device and method |
| CN202048964U (en) * | 2010-12-29 | 2011-11-23 | 南京三埃工控股份有限公司 | Tilt angle compensation arrangement of belt scale |
| JP5904715B2 (en) * | 2011-03-28 | 2016-04-20 | 大和製衡株式会社 | Conveyor scale |
| CN102706435A (en) * | 2012-06-27 | 2012-10-03 | 铜陵华飞电子科技有限公司 | Temperature compensation metering device for belt weigher display controller |
| CN104154974A (en) * | 2014-07-23 | 2014-11-19 | 赛摩电气股份有限公司 | High-stability electronic belt scale and stability compensating method thereof |
| CN104180889A (en) * | 2014-07-23 | 2014-12-03 | 赛摩电气股份有限公司 | Linear compensation method for electronic belt scale |
Non-Patent Citations (1)
| Title |
|---|
| 杨晓光等: "YT8P系列电子皮带秤的皮带效应和准直性校准", 《衡器》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108489591A (en) * | 2018-03-21 | 2018-09-04 | 郑州金恒电子技术有限公司 | A kind of reinspection method of weighing having error compensation |
| CN112050916A (en) * | 2020-06-22 | 2020-12-08 | 华东理工大学 | Method for measuring total mass of material based on vibration frequency of weighing carrier roller |
| CN112050916B (en) * | 2020-06-22 | 2021-11-30 | 华东理工大学 | Method for measuring total mass of material based on vibration frequency of weighing carrier roller |
| CN114061727A (en) * | 2021-11-11 | 2022-02-18 | 吉林烟草工业有限责任公司 | Method for monitoring weighing abnormity of belt scale |
| CN114061727B (en) * | 2021-11-11 | 2024-06-04 | 吉林烟草工业有限责任公司 | Belt scale weighing abnormity monitoring method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107091677B (en) | 2020-08-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3431322B2 (en) | Conveyor friction scale | |
| RU2549208C2 (en) | High-precision belt weighing device | |
| CN105241537B (en) | A kind of method of adjustment of belted electronic balance weighing precision stability | |
| CN103900676A (en) | Method for monitoring durability of electronic belt scale | |
| CN107091677B (en) | An Error Compensation Method and Belt Scale Based on Error Compensation | |
| US5296654A (en) | Universal belt scale | |
| WO1990005285A1 (en) | A weighing system, particularly a maritime weighing system | |
| CN102288266B (en) | Electronic belt scale and metering precision compensating method | |
| CN104154974A (en) | High-stability electronic belt scale and stability compensating method thereof | |
| CN107543597A (en) | Punching belt conveyer scale and its weighing technique | |
| CN108151836A (en) | A kind of high-precision suspension array belt weigher | |
| CN202393486U (en) | Correcting device of electronic belt scale and correcting weight used for device | |
| CN102300787A (en) | Belt weighing system | |
| CN101666673A (en) | Flat plate bearing type electronic belt scale | |
| CN104180889A (en) | Linear compensation method for electronic belt scale | |
| CN209055194U (en) | A kind of double fulcrum high-precision electronic belt scales | |
| Aleksandrović et al. | Analysis of belt weigher accuracy limiting factors | |
| CN210268847U (en) | Electronic belt scale body with accurate measurement | |
| GB2270570A (en) | A weighing process and belt weigher for carrying out the process | |
| CN101865724B (en) | Metering calibration system and calibration method of adhesive tape machine | |
| CN215178064U (en) | Belt scale body capable of overcoming belt effect | |
| Živanić et al. | The analysis of influential parameters on calibration and feeding accuracy of belt feeders | |
| CN103900667A (en) | Electronic belt scale linear compensation method | |
| CN201561794U (en) | Flat plate bearing type electronic belt scale | |
| CN204373755U (en) | Streams electronic scales |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200804 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |