高达1000 MHz的高分辨率探头

PVA TePla为声学绘图和分析提供了出色的探头应用频率，超声波频率高达1000 MHz。这意味着在合适的样品上可以实现低至0,8 µm的分辨率。PVA TePla所生产的高频超声波探头是以蓝宝石透镜技术和ZnO压电材料的活性元件为基础，频率范围为100-1000 MHz，可完美满足最多样化的高分辨率应用。

这些特殊的透镜是专门为分析薄层而开发的，但它们也可以用于定量声学显微镜。在该情况下，瑞利波被诱导到材料表面以下，并使用v（z）和f（v）曲线进行分析。通过正确的傅里叶分析，表面波速度（瑞利波）可以以超过0.1%的精度进行测量，从而可以局部测定弹性模量或剪切模量。

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PVA TePla 探头

PVA TePla 超声波系统探头

探头 / 范围

下方表格展示了常用的探头列表。

如需其他版本，可根据具体要求提供。

同时，我司也支持为特定的应用生产探头

No.	Frequency [MHz]	Axial resolution [µm]	Detection limit [µm]	Focal length in water [mm]	Additionally available focal lengths (in water) [mm]	Aperture diameter [mm]
1	Transducer 5 MHz	257.18	85.73	37.00	20 mm – 60 mm (customer-specific), or non-focused	3.5–6.36
2	Transducer 10 MHz	160.74	53.58	19.00	20–50 mm (customer-specific), or non-focused	3.5–6.36
3	Transducer 15 MHz	98.91	32.97	37.00	20–50 mm (customer-specific), or non-focused	3.5–6.36
4	Transducer 20 MHz	75.64	25.21	10.00	20–50 mm (customer-specific), or non-focused	2.5–5
5	Transducer 25 MHz	58.45	19.48	25.00	25 mm (customer-specific), or non-focused	2.5–5
6	Transducer 30 MHz	49.46	16.49	13.00	12.7 mm	4
7	Transducer 35 MHz	42.86	14.29	30.00	30 mm	4
8	Transducer 35 MHz	42.86	14.29	35.00	40 mm	4
9	Transducer 50 MHz	29.90	9.97	12.00	10–12 mm	3.0–4.0
10	Transducer 75 MHz	20.09	6.70	12.70	8–12.7 mm	3
11	Transducer 80 MHz	19.78	6.59	10.00	8–12 mm	3
12	Transducer 100 MHz	14.95	4.98	8.00	8 mm or 10 mm	2
13	Transducer 110 MHz	13.68	4.56	8.00	8 mm	2
14	Transducer 125 MHz	11.91	3.97	9.00	7–9 mm	2
15	Transducer 150 MHz	9.97	3.32	5.90	5.9 mm	1.85–2.2
16	Transducer 150 MHz	9.97	3.32	8.00	8 mm	1.85–2.2
17	Transducer 150 MHz	9.97	3.32	4.00	4 mm	1.85–2.2
18	Transducer 150 MHz	9.97	3.32	3.20	3.2 mm	1.85–2.2
19	Transducer 150 MHz	9.97	3.32	8.0	8 mm	1.85–2.2
20	Transducer 175 MHz	8.57	2.86	4.00	4 mm	1.85–2.2
21	Transducer 175 MHz	8.57	2.86	3.20	3.2 mm	1.85–2.2
22	Transducer 175 MHz	8.57	2.86	8.00	8 mm	1.85–2.2
23	Transducer 200 MHz	7.52	2.51	8.00	8 mm	1.85–2.2
24	Transducer 200 MHz	7.52	2.51	4.00	4 mm	1.85–2.2
25	Transducer 200 MHz	7.52	2.51	8.00	8 mm	1.85–2.2
26	Transducer 200–250 MHz	6.01	2.00	5.00	5 mm	1.85–2.2
27	Transducer 200–250 MHz	6.01	2.00	4.00	4 mm	1.85–2.2
28	Transducer 200–250 MHz	6.01	2.00	3.20	3.2 mm	1.85–2.2
29	Transducer 200–250 MHz	6.01	2.00	8.00	8 mm	1.85–2.2
30	Transducer 300 MHz	5.02	1.67	3.20	3.2 mm	1.85–2.2
31	Rayleigh wave lens 100 MHz	7.56	2.52	1.80	1.8 mm	1.8
32	Rayleigh wave lens 200 MHz	3.76	1.25	0.60	0.6 mm	0.6
32	Rayleigh wave lens 400 MHz	1.88	0.63	0.30	0.3 mm	0.3
33	Rayleigh wave lens 1,000 MHz	0.60	2.52	0.08	0.08 mm	0.08
34	Rayleigh wave lens 800–1,300 MHz	0.60	1.25	0.06	0.06 mm	0.06
35	Rayleigh wave lens 1,300–2,000 MHz	0.60	0.63	0.06	0.06 mm	0.06