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Piezohannas
85Khz-180KHz Širokopásmový přijímací a vysílací akustický převodník pro rychlost proudění
Technické parametry:
1. Obsah měření:
1.1. Křivky vodivosti a susceptance
Změřte parametry vodivosti a susceptance převodníku ve frekvenčním pásmu 80 kHz–220 kHz.
1.2. Odesílání odezvy
Změřte vysílací odezvu převodníku ve frekvenčním pásmu 80 kHz–220 kHz.
1.3. Citlivost příjmu
Změřte citlivost příjmu snímače ve frekvenčním pásmu 80 kHz–220 kHz.
1.4. Směrovost
Změřte směrovost při 125 kHz: horizontální všesměrovost a vertikální šířku paprsku ne menší než 60°.
1.5. Zkouška hydrostatického tlaku
Odolnost převodníku vůči hydrostatickému tlaku nesmí být menší než 1 MPa.
2. Údaje o měření
2.1. Parametry vodivosti a susceptance
25007 |
||||||||
f (kHz) |
G (ms) |
B (mS) |
f (kHz) |
G (ms) |
B (mS) |
f (kHz) |
G (ms) |
B (mS) |
80 |
0.0241 |
1.0562 |
127 |
0.5693 |
2.0962 |
174 |
0.2602 |
2.0194 |
81 |
0.0259 |
1.0721 |
128 |
0.6394 |
2.0996 |
175 |
0.258 |
2.0416 |
82 |
0.0254 |
1.0883 |
129 |
0.7118 |
2.0932 |
176 |
0.2556 |
2.0644 |
83 |
0.0271 |
1.1031 |
130 |
0.7895 |
2.072 |
177 |
0.2539 |
2.0878 |
84 |
0.028 |
1.1203 |
131 |
0.8657 |
2.0327 |
178 |
0.2532 |
2.11 |
85 |
0.029 |
1.1356 |
132 |
0.9289 |
1.971 |
179 |
0.2543 |
2.1336 |
86 |
0.0298 |
1.1525 |
133 |
0.9777 |
1.9005 |
180 |
0.2541 |
2.1566 |
87 |
0.0303 |
1.1686 |
134 |
1.0097 |
1.8184 |
181 |
0.2551 |
2.179 |
88 |
0.0341 |
1.1825 |
135 |
1.019 |
1.7322 |
182 |
0.2549 |
2.2026 |
89 |
0.0332 |
1.2 |
136 |
1.0075 |
1.6496 |
183 |
0.2559 |
2.2284 |
90 |
0.0343 |
1.2175 |
137 |
0.9776 |
1.5765 |
184 |
0.2573 |
2.2511 |
91 |
0.0353 |
1.2349 |
138 |
0.9267 |
1.5177 |
185 |
0.2581 |
2.2764 |
92 |
0.0377 |
1.2519 |
139 |
0.8661 |
1.4945 |
186 |
0.2611 |
2.302 |
93 |
0.0376 |
1.2694 |
140 |
0.8538 |
1.4783 |
187 |
0.2629 |
2.3282 |
94 |
0.0383 |
1.2872 |
141 |
0.8152 |
1.436 |
188 |
0.2675 |
2.354 |
95 |
0.0405 |
1.306 |
142 |
0.7633 |
1.4113 |
189 |
0.2709 |
2.3805 |
96 |
0.0428 |
1.3253 |
143 |
0.7118 |
1.4014 |
190 |
0.2756 |
2.4071 |
97 |
0.0459 |
1.3462 |
144 |
0.6637 |
1.4017 |
191 |
0.2805 |
2.4358 |
98 |
0.0472 |
1.3633 |
145 |
0.6207 |
1.4081 |
192 |
0.2856 |
2.4647 |
99 |
0.0503 |
1.383 |
146 |
0.581 |
1.4184 |
193 |
0.2934 |
2.4936 |
100 |
0.0529 |
1.4034 |
147 |
0.5454 |
1.4337 |
194 |
0.3011 |
2.524 |
101 |
0.0564 |
1.4246 |
148 |
0.5137 |
1.4514 |
195 |
0.3105 |
2.554 |
102 |
0.0604 |
1.447 |
149 |
0.4874 |
1.4713 |
196 |
0.3217 |
2.5878 |
103 |
0.069 |
1.4632 |
150 |
0.4624 |
1.4909 |
197 |
0.3373 |
2.6189 |
104 |
0.0678 |
1.4828 |
151 |
0.4396 |
1.5112 |
198 |
0.3536 |
2.6512 |
105 |
0.0715 |
1.5063 |
152 |
0.4184 |
1.5321 |
199 |
0.3717 |
2.6837 |
106 |
0.0758 |
1.5282 |
153 |
0.3993 |
1.5549 |
200 |
0.3926 |
2.7173 |
107 |
0.0792 |
1.5533 |
154 |
0.3832 |
1.5823 |
201 |
0.418 |
2.7499 |
108 |
0.0861 |
1.5777 |
155 |
0.3733 |
1.6028 |
202 |
0.4485 |
2.7835 |
109 |
0.094 |
1.6019 |
156 |
0.3628 |
1.6227 |
203 |
0.4852 |
2.8157 |
110 |
0.103 |
1.6235 |
157 |
0.3481 |
1.6426 |
204 |
0.5263 |
2.8431 |
111 |
0.1087 |
1.651 |
158 |
0.3374 |
1.6647 |
205 |
0.5757 |
2.8668 |
112 |
0.1152 |
1.6767 |
159 |
0.3267 |
1.6881 |
206 |
0.634 |
2.8805 |
113 |
0.1256 |
1.7062 |
160 |
0.3178 |
1.7108 |
207 |
0.6969 |
2.8818 |
114 |
0.1373 |
1.7353 |
161 |
0.3107 |
1.7336 |
208 |
0.7613 |
2.8648 |
115 |
0.1518 |
1.7657 |
162 |
0.3027 |
1.755 |
209 |
0.8218 |
2.8305 |
116 |
0.1682 |
1.7954 |
163 |
0.2972 |
1.7776 |
210 |
0.8672 |
2.7717 |
117 |
0.1844 |
1.8262 |
164 |
0.2901 |
1.7991 |
211 |
0.8892 |
2.7025 |
118 |
0.2057 |
1.8585 |
165 |
0.2845 |
1.8207 |
212 |
0.8807 |
2.6313 |
119 |
0.2323 |
1.8904 |
166 |
0.2796 |
1.8441 |
213 |
0.8477 |
2.5728 |
120 |
0.2566 |
1.9181 |
167 |
0.2755 |
1.8659 |
214 |
0.7992 |
2.5329 |
121 |
0.2878 |
1.9495 |
168 |
0.2723 |
1.8892 |
215 |
0.7424 |
2.5119 |
122 |
0.324 |
1.9785 |
169 |
0.2678 |
1.9105 |
216 |
0.6858 |
2.5123 |
123 |
0.3587 |
2.0009 |
170 |
0.2666 |
1.9327 |
217 |
0.6351 |
2.5246 |
124 |
0.3959 |
2.0334 |
171 |
0.2636 |
1.9564 |
218 |
0.5898 |
2.5491 |
125 |
0.4473 |
2.0639 |
172 |
0.2635 |
1.9768 |
219 |
0.5542 |
2.5819 |
126 |
0.5068 |
2.0843 |
173 |
0.2623 |
1.9985 |
220 |
0.5258 |
2.6154 |
f/kHz |
25007 |
25012 |
25013 |
25018 |
25019 |
25023 |
25027 |
80 |
-215.9 |
-215.9 |
-215.9 |
-215.9 |
-215.9 |
-215.9 |
-215.9 |
85 |
-215.5 |
-215.5 |
-215.5 |
-215.5 |
-215.5 |
-215.5 |
-215.5 |
90 |
-214.7 |
-214.7 |
-214.7 |
-214.7 |
-214.7 |
-214.7 |
-214.7 |
95 |
-214.7 |
-214.7 |
-214.7 |
-214.7 |
-214.7 |
-214.7 |
-214.7 |
100 |
-212.7 |
-212.7 |
-212.7 |
-212.7 |
-212.7 |
-212.7 |
-212.7 |
105 |
-212.6 |
-212.6 |
-212.6 |
-212.6 |
-212.6 |
-212.6 |
-212.6 |
110 |
-213.7 |
-213.7 |
-213.7 |
-213.7 |
-213.7 |
-213.7 |
-213.7 |
115 |
-212.1 |
-212.1 |
-212.1 |
-212.1 |
-212.1 |
-212.1 |
-212.1 |
120 |
-210.9 |
-210.9 |
-210.9 |
-210.9 |
-210.9 |
-210.9 |
-210.9 |
125 |
-210.4 |
-210.4 |
-210.4 |
-210.4 |
-210.4 |
-210.4 |
-210.4 |
130 |
-210.8 |
-210.8 |
-210.8 |
-210.8 |
-210.8 |
-210.8 |
-210.8 |
135 |
-208.2 |
-208.2 |
-208.2 |
-208.2 |
-208.2 |
-208.2 |
-208.2 |
140 |
-208.8 |
-208.8 |
-208.8 |
-208.8 |
-208.8 |
-208.8 |
-208.8 |
145 |
-206.2 |
-206.2 |
-206.2 |
-206.2 |
-206.2 |
-206.2 |
-206.2 |
150 |
-206.9 |
-206.9 |
-206.9 |
-206.9 |
-206.9 |
-206.9 |
-206.9 |
155 |
-207.4 |
-207.4 |
-207.4 |
-207.4 |
-207.4 |
-207.4 |
-207.4 |
160 |
-208.7 |
-208.7 |
-208.7 |
-208.7 |
-208.7 |
-208.7 |
-208.7 |
165 |
-209.2 |
-209.2 |
-209.2 |
-209.2 |
-209.2 |
-209.2 |
-209.2 |
170 |
-210.4 |
-210.4 |
-210.4 |
-210.4 |
-210.4 |
-210.4 |
-210.4 |
175 |
-211.5 |
-211.5 |
-211.5 |
-211.5 |
-211.5 |
-211.5 |
-211.5 |
180 |
-212.6 |
-212.6 |
-212.6 |
-212.6 |
-212.6 |
-212.6 |
-212.6 |
185 |
-213.7 |
-213.7 |
-213.7 |
-213.7 |
-213.7 |
-213.7 |
-213.7 |
190 |
-215.2 |
-215.2 |
-215.2 |
-215.2 |
-215.2 |
-215.2 |
-215.2 |
195 |
-213.6 |
-213.6 |
-213.6 |
-213.6 |
-213.6 |
-213.6 |
-213.6 |
200 |
-212.5 |
-212.5 |
-212.5 |
-212.5 |
-212.5 |
-212.5 |
-212.5 |
205 |
-211.0 |
-211.0 |
-211.0 |
-211.0 |
-211.0 |
-211.0 |
-211.0 |
210 |
-210.5 |
-210.5 |
-210.5 |
-210.5 |
-210.5 |
-210.5 |
-210.5 |
215 |
-209.0 |
-209.0 |
-209.0 |
-209.0 |
-209.0 |
-209.0 |
-209.0 |
220 |
-208.4 |
-208.4 |
-208.4 |
-208.4 |
-208.4 |
-208.4 |
-208.4 |
Horizontální směrovost
