直线加速器控制网测量跟踪仪测角误差标定

张翼飞; 董晓浩; 陈家华; 孙小沛; 刘芳芳

doi:10.11884/HPLPB202436.230374

直线加速器控制网测量跟踪仪测角误差标定

doi: 10.11884/HPLPB202436.230374

中国科学院上海高等研究院，上海 201204

基金项目: 国家自然科学基金联合基金项目(U1832172)

详细信息

作者简介:
张翼飞，zhangyifei@sari.ac.cn

中图分类号: TL505
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- 文章访问数: 14
- HTML全文浏览量: 14
- PDF下载量: 1
- 被引次数: 0
出版历程
- 收稿日期: 2023-10-27
- 修回日期: 2024-03-06
- 录用日期: 2024-03-06
- 网络出版日期: 2024-04-26

Calibration of the tracker’s angle measurement error for linac control network

Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China

摘要

摘要: 根据关键设备在直线加速器隧道内的布局，控制网布设在隧道地面和墙面。跟踪仪是直线加速器控制网测量的主要仪器，跟踪仪的测角误差是影响设备精度的关键因素。根据隧道墙面和地面网点的布局以及跟踪仪测量方案，对跟踪仪所有测量状态下的水平角和垂直角进行分解；然后通过高精度三坐标测量仪和跟踪仪联动测试，对分解后的角度进行高精度求解，解算值用于修正跟踪仪的实测角度。结果表明，不管是哪种测量状态，跟踪仪实测角度值均大于解算值；地面网点垂直角和水平角的偏差与跟踪仪的标称精度基本相当；墙面点水平角超过15°时，测角误差随着角度的增加而增大，在隧道控制网测量时需要对墙面点水平角进行修正。
- 直线型粒子加速器 /
- 控制网 /
- 跟踪仪 /
- 三坐标测量仪 /
- 测角误差
Abstract: Linac control network is the reference for optical axis transmission. According to the layout of key equipment in linac tunnel, the control network is laid out on the ground and wall of the tunnel. Tracker is the main instrument for measuring linac control network, and the angle measurement error is a key factor affecting the accuracy of the tracker. Based on the layout of wall and ground network points and the measurement plan, laser tracker’s angles were decomposed as horizontal and vertical angles in all measurement states. Then, through the linkage testing of high-precision CMM and laser trackers, all the decomposed angles were calculated, and the calculated values are used to correct the tracker’s measurement angles. Based on the test results, regardless of the measurement state, measured angle of the tracker is larger than the calculated value. The ground network points’ vertical angle deviation and horizontal angle deviation almost equal to the nominal accuracy of the tracker. When the horizontal angle of wall points exceeds 15°, deviation increase significantly, and the deviation should be corrected while measuring the wall network points.
- linear particle accelerator /
- control network /
- tracker /
- coordinate measuring machine /
- angle measurement error

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图 1 光束线隧道横截面控制网点布局以及坐标系

Figure 1. Layout of control network in beamline tunnel cross-section and coordinate system

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图 2 光学隧道控制网测量方案

Figure 2. Control network measurement plan in optical tunnel

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图 3 跟踪仪角度测量分解

Figure 3. Decomposition of the tracker’s measurement angle

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图 4 棱镜球、三坐标测量仪以及坐标系

Figure 4. Target, CMM and coordinate system

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图 5 跟踪仪垂直角标定

Figure 5. Vertical angle calibration of tracker

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图 6 三角形解算示意图

Figure 6. Calculation based on relatiouship between sides in a triangle

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图 7 跟踪仪水平角标定

Figure 7. Horizontal angle calibration of tracker

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表 1 跟踪仪测量角度分解值

Table 1. Decomposition values of the tracker’s measurement angle

tunnel section	distance/m	ground network points		wall network points horizontal angle/(°)
tunnel section	distance/m	vertical angle/(°)	horizontal angle/(°)	wall network points horizontal angle/(°)
2	4.5	111.8	10.08	32.6
3	7.5	103.5	6.09	21.14
4	10.5	99.73	4.36	15.43
5	13.5	97.59	3.39	12.12
6	16.5	96.23	2.78	9.97
7	19.5	95.27	2.35	8.46
8	22.5	94.57	2.04	7.34
9	25.5	94.04	1.8	6.49
10	28.5	93.61	1.61	5.81

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表 2 垂直角前视数据

Table 2. Vertical angle forward looking data

tracker				CMM				error/(″)
D/mm	θ_H/(°)	θ_V/(°)	displayed angle/(°)	X/mm	Y/mm	Z/mm	calculated angle /(°)	error/(″)
1555.992	0.0006	90.0006	−	567.3841	486.9879	682.2063	−	−
1559.096	0.0009	93.6095	3.6089	567.384	486.9884	584.0774	3.6089	0
1559.885	0.0012	94.0399	4.0393	567.3842	486.9883	572.3393	4.0385	−2.88
1560.978	0.0013	94.5711	4.5705	567.3843	486.9884	557.8323	4.5698	−2.52
1562.621	0.0014	95.2702	5.2696	567.3843	486.9883	538.7067	5.2693	−1.08
1565.269	0.0018	96.231	6.2304	567.3845	486.9882	512.3521	6.2296	−2.88
1569.909	0.0016	97.5401	7.5395	567.3846	486.9878	474.88	7.5389	−2.16
1578.741	0.0016	99.7302	9.7296	567.3847	486.9873	415.4226	9.7287	−3.24
1600.258	0.0015	103.5003	13.4997	567.3843	486.9879	308.6595	13.499	−2.52

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表 3 垂直角后视前标定数据

Table 3. Vertical angle backward looking data

tracker				CMM				error/(″)
D/mm	θ_H/(°)	θ_V/(°)	displayed angle/(°)	X/mm	Y/mm	Z/mm	calculated angle /(°)	error/(″)
1605.503	179.9998	89.9997	−	436.3315	508.5864	577.4946	−	−
1608.703	179.9994	93.6099	3.6102	436.3322	508.586	476.2022	3.6098	−1.44
1609.519	179.9995	94.0398	4.0401	436.3322	508.5859	464.1014	4.0401	0
1610.635	179.9995	94.5701	4.5704	436.3323	508.5859	449.1584	4.5705	0.36
1612.333	179.9992	95.2704	5.2707	436.3325	508.5857	429.3875	5.2706	−0.36
1615.056	179.9993	96.2303	6.2306	436.3326	508.5855	402.2223	6.2301	−1.8
1619.718	179.999	97.5903	7.5906	436.3327	508.5856	363.5459	7.5903	−1.08
1628.969	179.9988	99.7306	9.7309	436.3325	508.5861	302.171	9.7307	−0.72
1651.164	179.9986	103.5005	13.5008	436.3323	508.5859	192.0205	13.5007	−0.36

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表 4 地面点水平角顺时针标定数据

Table 4. Horizontal angle clockwise data for ground control network

tracker				CMM				error/(″)
D/mm	θ_H/(°)	θ_V/(°)	displayed angle/(°)	X/mm	Y/mm	Z/mm	calculated angle /(°)	error/(″)
1561.288	0.0003	90.0004	−	567.3756	4.4533	680.3061	−	−
1561.992	1.6101	90.0002	1.6098	567.7426	48.3293	680.3059	1.6105	−0.76
1562.163	1.8008	90.0004	1.8005	567.5629	53.5393	680.3058	1.801	−0.36
1562.395	2.0406	90.0005	2.0403	567.5628	60.0795	680.3059	2.0404	−1.8
1562.737	2.3499	90.0005	2.3496	567.5451	68.5197	680.3059	2.35	−0.72
1563.244	2.7501	90.0004	2.7498	567.5451	79.4458	680.3059	2.7493	−3.96
1564.221	3.3899	90.0004	3.3896	567.5666	96.937	680.3061	3.3892	−3.6
1566.068	4.3605	90.0003	4.3602	567.459	123.5187	680.3063	4.3601	−2.52
1570.487	6.0891	90.0001	6.0888	567.4737	171.0359	680.3068	6.0886	−2.88
1586.344	10.0807	90	10.0804	567.459	282.1039	680.3078	10.0801	−3.24

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表 5 地面点水平角逆时针标定数据

Table 5. Horizontal angle anticlockwise data for ground control network

tracker				CMM				error/(″)
D/mm	θ_H/(°)	θ_V/(°)	displayed angle/(°)	X/mm	Y/mm	Z/mm	calculated angle /(°)	error/(″)
1569.297	−0.0002	90.0005	−	525.1197	989.4216	681.9518	−	−
1568.723	1.61	90.0008	1.6102	525.1194	945.3409	681.952	1.6096	−2.16
1568.735	1.7993	90.0008	1.7995	525.1193	940.1496	681.9519	1.7992	−1.08
1568.779	2.041	90.0008	2.0412	525.1193	933.5449	681.9518	2.0404	−2.88
1568.873	2.3492	90.0007	2.3494	525.1193	925.1026	681.952	2.3486	−2.88
1569.079	2.7792	90.0011	2.7794	525.1191	913.3313	681.952	2.779	−1.44
1569.525	3.3902	90.001	3.3904	525.1187	896.5895	681.9518	3.3892	−4.32
1570.601	4.3604	90.0011	4.3606	525.1183	869.9824	681.9518	4.3601	−1.8
1573.637	6.0905	90.001	6.0907	525.1182	822.4136	681.9513	6.0897	−3.6
1586.219	10.0796	90.0009	10.0798	525.1182	711.7248	681.9501	10.0788	−3.6

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表 6 墙面点水平角顺时针标定数据

Table 6. Horizontal angle clockwise data for wall control network

tracker				CMM				error/(″)
D/mm	θ_H/(°)	θ_V/(°)	displayed angle/(°)	X/mm	Y/mm	Z/mm	calculated angle /(°)	error/(″)
1561.288	0.0003	90.0004	−	567.3756	4.4533	680.3061	−	−
1569.678	5.8107	90.0003	5.8104	567.4584	163.361	680.3068	5.8106	0.72
1571.728	6.4904	90.0001	6.4901	567.5732	182.1064	680.3069	6.4898	−1.08
1574.603	7.3401	90.0001	7.3398	567.4812	205.6098	680.3071	7.3398	0
1578.941	8.4601	90	8.4598	567.4809	236.7345	680.3075	8.4595	−1.08
1585.798	9.9704	89.9999	9.9701	567.4807	278.994	680.3078	9.9695	−2.16
1597.976	12.1196	89.9999	12.1193	567.4584	339.8554	680.3083	12.1159	−12.24
1620.553	15.429	89.9996	15.4287	567.3514	435.5624	680.3085	15.4279	−2.88
1675.225	21.1393	89.9992	21.139	567.3539	608.5579	680.3097	21.1376	−5.04
1856.061	32.6204	89.9994	32.6201	567.3552	1004.9197	680.3116	32.6174	−9.72

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表 7 墙面点水平角逆时针标定数据

Table 7. Horizontal angle anticlockwise data for wall control network

tracker				CMM				error/(″)
D/mm	θ_H/(°)	θ_V/(°)	displayed angle/(°)	X/mm	Y/mm	Z/mm	calculated angle/(°)	error/(″)
1569.297	−0.0002	90.0005	−	525.1197	989.4216	681.9518	−	−
1573.046	5.8106	90.0009	5.8108	525.1181	830.1243	681.9516	5.81	−2.88
1574.544	6.4897	90.001	6.4899	525.1182	811.4113	681.9511	6.4893	−2.16
1576.74	7.3407	90.0009	7.3409	525.1182	787.9031	681.951	7.3402	−2.52
1580.165	8.4607	90.001	8.4609	525.1182	756.8625	681.9505	8.4599	−3.6
1585.767	9.9699	90.0009	9.9701	525.1183	714.7948	681.9502	9.9692	−3.24
1595.745	12.1209	90.0009	12.1211	525.1184	654.2506	681.95	12.1203	−2.88
1615.814	15.4296	90.0011	15.4298	525.1178	559.3949	681.9498	15.4285	−4.68
1664.965	21.1394	90.0009	21.1396	525.1165	388.7797	681.9485	21.1382	−5.04
1831.187	32.6191	90.0011	32.6193	525.1191	1.993	681.9465	32.6174	−6.84

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