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Summary of Contents for GRAS 43AG Series
- Page 1 Instruction Manual GRAS 43AG Ear and Cheek Simulator...
- Page 2 Any technical documentation that is made available by GRAS is the copyrighted work of GRAS and is owned by GRAS. The content in this document is subject to change without notice. GRAS Sound & Vibration A/S is not liable or responsible for any errors or inaccuracies that may appear in this document.
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Page 3: Table Of Contents
Contents Introduction ..............................4 The Scope of this Manual ............................. 4 Delivered Items ..............................5 43AG-1 Ear and Cheek Simulator LEMO ......................5 43AG-2 Ear and Cheek Simulator CCP ............................6 43AG-3 Ear and Cheek Simulator w. Anthropometric Pinna LEMO ............7 43AG-4 Ear and Cheek Simulator w. -
Page 4: Introduction
Introduction The GRAS 43AG Ear and Cheek Simulator is a unique multi-purpose tool that helps you accomplish the job in an eff ective and effi cient manner. We call it the table-top KEMAR as it off ers you much of the KEMAR capability in a convenient and portable packaging. -
Page 5: Delivered Items
Delivered Items 43AG-1 Ear and Cheek Simulator LEMO 43AG-1 Test Jig with mounting base and adjustable RA0052 force clamp Cheek Plate RA0314 Large Right Pinna 55 Shore OO KB0065 45EA 26AS GR1440B GR0917 KB0066 KB0065 Ear Canal Extension GR0917 GR0924 RA0045 40AG GS0158... -
Page 6: 43Ag-2 Ear And Cheek Simulator Ccp
Angled 1/2” to 1/4” Adapter RA0001 46BP 46BD 1/4" Preamplifi er 26CB 40AD 46BP-1 Microdot to BNC Cable, 3 m AA0070 Finger Simulator RA0199 External Ear Canal GR0408 Union Nut GR0409 6 | GRAS 43AG Ear and Cheek Simulator Instruction Manual... -
Page 7: 43Ag-3 Ear And Cheek Simulator W. Anthropometric Pinna Lemo
43AG-3 Ear and Cheek Simulator w. Anthropometric Pinna LEMO 43AG-3 Test Jig with mounting base and adjustable RA0052 force clamp Cheek Plate RA0314 Large Right Anthropometric Pinna KB5000 35 Shore OO G.R.A.S. G.R.A.S. 45EA GR1440B 26AS GR0917 KB5001 KB5000 Ear Simulator Holder GR1874 GR0924 Finger Screws for pinna... -
Page 8: 43Ag-4 Ear And Cheek Simulator W. Anthropometric Pinna Ccp
Angled 1/2” to 1/4” Adapter RA0001 46BP 46BD 1/4" Preamplifi er with Microdot Connector 26CB 40AD 46BP-1 Microdot to BNC able, 3 m AA0070 Finger Simulator RA0199 External Ear Canal GR0408 Union Nut GR0409 8 | GRAS 43AG Ear and Cheek Simulator Instruction Manual... -
Page 9: 43Ag-5 Ear And Cheek Simulator, Low-Noise
43AG-5 Ear and Cheek Simulator, Low-noise 43AG-5 Test Jig with mounting base and adjustable RA0052 force clamp Cheek Plate RA0314 Large Right Anthropometric Pinna KB5000 35 Shore OO G.R.A.S. G.R.A.S. KB5001 KB5000 Ear Simulator Holder GR1874 Finger Screws for pinna 2 x SK6012 Finger Simulator RA0199... -
Page 10: 43Ag-6 Ear And Cheek Simulator W. High-Frequency Ear Simulator Lemo
Angled 1/2” to 1/4” Adapter RA0001 46BP 46BD 1/4" Preamplifi er with 3 m integrated cable 26AC 40AD 46BP-1 Finger Simulator RA0199 External Ear Canal GR0408 Union Nut GR0409 1 0 | GRAS 43AG Ear and Cheek Simulator Instruction Manual... -
Page 11: 43Ag-7 Ear And Cheek Simulator W. High-Frequency Ear Simulator Ccp
43AG-7 Ear and Cheek Simulator w. High-Frequency Ear Simulator CCP 43AG-7 Test Jig with mounting base and adjustable RA0052 force clamp Cheek Plate RA0314 Large Right Anthropometric Pinna KB5000 35 Shore OO G.R.A.S. G.R.A.S. 45EA GR1440B 26AS GR0917 KB5000 KB5001 Ear Simulator Holder GR1874 GR0924... -
Page 12: 43Ag-8 Ear And Cheek Simulator W. Hi-Res Ear Simulator Lemo
Angled 1/2” to 1/4” Adapter RA0001 46BP 46BD 1/4" Preamplifi er with 3 m integrated cable 26AC 40AD 46BP-1 Finger Simulator RA0199 External Ear Canal GR0408 Union Nut GR0409 1 2 | GRAS 43AG Ear and Cheek Simulator Instruction Manual... -
Page 13: 43Ag-9 Ear And Cheek Simulator W. Hi-Res Ear Simulator Ccp
43AG-9 Ear and Cheek Simulator w. Hi-Res Ear Simulator CCP 43AG-9 Test Jig with mounting base and adjustable RA0052 force clamp Cheek Plate RA0314 Large Right Anthropometric Pinna KB5000 35 Shore OO G.R.A.S. G.R.A.S. 45EA GR1440B 26AS GR0917 KB5000 KB5001 Ear Simulator Holder GR1874 GR0924... -
Page 14: Assembly
1. Screw the GR0917 Ear Canal Extension (43AG-1 and 43AG-2) or the GR1874 Ear Simulator Holder (43AG-3 and 43AG-4) onto the ear simulator. 2. Screw the ear simulator into the test jig (onto the angled adapter already mounted by GRAS). Use only fi nger force when tightening. -
Page 15: 43Ag-5
Ear Canal GR0917 Ear simulator Extension or (with holder GR1874 or ear canal Simulator Holder extension) Ear Simulator Test Jig Fig. 3. Mounting the ear simulator in the test jig. 3. Push the Cheek plate down onto the test jig: While holding the jig with your hands, use your thumbs to force the cheek plate down onto and over the holder. - Page 16 (unintentionally) removing the microphone. Ear Simulator with Angled Adapter CAUTION Fig. 5. Mounting the angled adapter – use only gentle fi nger force. 1 6 | GRAS 43AG Ear and Cheek Simulator Instruction Manual...
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Page 17: Adjusting Clamp Height And Force
Adjusting Clamp Height and Force Adjusting the Clamp Height The distance of the spring-loaded clamp to the cheek plate can be adjusted continuously from 25 mm to 90 mm. Two pin lengths are supplied, one 40 mm and another 75 mm long. A distance between 25 to 55 mm can be achieved using the short pin, a distance of 55 mm to 90 mm can be achieved using the long pin. -
Page 18: Adjusting The Spring Tension And Measuring Its Force
The clamp can easily be removed with a small Phillips screwdriver and replaced with an RA0199 Finger Simulator, as shown in Fig. 9. Philips screw 90° Fig. 8. Measuring the force applied to the DUT. Fig. 9. Mounting the RA0199 Finger Simulator. 1 8 | GRAS 43AG Ear and Cheek Simulator Instruction Manual... -
Page 19: Mounting The Kemar Pinnae
Mounting the KEMAR Pinnae When mounting a pinna, ensure that the posterior part of the helix is positioned towards the arm. A standardized pinna as used with the 43AG-1 and 43AG-2 is mounted by simply pushing it into the recess. Ensure that the pinna is fl ush with the cheek plate. The anthropometric pinna used with 43AG-3 to 43AG-7 is mounted in the same way, but in addition to the push mounting, they must be secured by the two fi... -
Page 20: Test Setups
Input Output Signature Series 12HF Power Module Fig. 12. Test setup for 43AG-5 with 26HT Gain Unit and the 12HF Power Module. From 26AC Preamplifier From low-noise Ear Simulators 2 0 | GRAS 43AG Ear and Cheek Simulator Instruction Manual... -
Page 21: Calibration
Calibration Do not attempt to remove the microphone from the Ear Simulator – you must calibrate the ear simulator as a complete unit. The instructions below assume that the 43AG is connected to power module and analyzer. 43AG-1 and 43AG-2 43AG-1 and 43AG-2 can be calibrated in situ using an RA0157 Calibration Adapter. -
Page 22: 43Ag-1 To 43Ag-9
Refer to your Pistonphone’s manual for further information, including how to correct for baromet- ric pressure. The correction factor is - 1.03 dB. Ideally your analyzer should read 114 dB - 1.03 dB = 112.97 dB ± correction for ambient pressure. 2 2 | GRAS 43AG Ear and Cheek Simulator Instruction Manual... -
Page 23: 43Ag-5 Low-Noise
43AG-5 Low-noise The instructions below assume that 43AG-5 is connected to power module, fi lter and gain unit and analyzer. System Sensitivity Since the microphone signal is amplifi ed by 20 dB by the 26HT Gain and Filter Unit, the nominal system sensitivity corresponds to 0.8 V/Pa. -
Page 24: Correction Factors
GR0408 -0.2 dB 43AG-5 with Low-noise Ear Simulator 42AP and 42AA GR0408 -0.7 dB 42AG @250 Hz, 94 dB GR0408 -0.09 dB 42AG @1KHz, 94 dB GR0408 -0.2 dB 2 4 | GRAS 43AG Ear and Cheek Simulator Instruction Manual... -
Page 25: Technical Specifi Cations
Technical Specifi cations 43AG Ear and Cheek Simulator Weight 1.95 kg 43AG Dimensions Clamp force, adjustable: 2 springs: approx. 1-8 N 4 springs: approx. 6-12 N 102 (4.02 102 (4.02 136 (5.35) Pinna Base and Ear Canal Extension Dimensions 7.50 7.50 Ø... -
Page 26: Ra0045 Ear Simulator (43Ag-1 To 43Ag-4)
Dynamic Range RA0045 (LEMO) 25 dBA to 164 dB RA0045-S1 (CCP) 25 dBA to 153 dB Effective Volume at 500 Hz 1260 mm Dimensions Height 23.0 mm Diameter 23.75 mm 2 6 | GRAS 43AG Ear and Cheek Simulator Instruction Manual... -
Page 27: 43Bb Low-Noise Ear Simulator System (43Ag-5)
43BB Low-noise Ear Simulator System (43AG-5) Frequency Response Typical frequency response Typical Frequency Response for 43BB re 500 Hz Typical frequency response (dark blue) versus the IEC tolerances (dashed grey) and the ideal IEC 43BB Typical RA0045 60318-4 frequency response IEC tolerances (light blue) 1000... -
Page 28: Ra0401/0402 High-Frequency Ear Simulator (43Ag-6 And 43Ag-7)
Dynamic Range RA0401 (LEMO) 25 dBA to 164 dB RA0402 (CCP) 25 dBA to 153 dB Effective Volume at 500 Hz 1260 mm Dimensions Height 23.0 mm Diameter 23.75 mm 2 8 | GRAS 43AG Ear and Cheek Simulator Instruction Manual... -
Page 29: Ra0403/0404 Hi-Res Ear Simulator (43Ag-8 And 43Ag-9)
Series P: Telephone transmission quality, Objective measuring apparatus: Artifi cial ears ANSI S3.25/ASA-2009 American National Standard For an Occluded Ear Simulator Frequency Response Typical transfer impedance re 500 Hz Typical response RA0403 GRAS RA0403 Tolerance IEC Tolerance 1000 10000 100000 Frequency [Hz] Resonance frequency 13.5 kHz ±... -
Page 30: Accessories
10 m LEMO 7-pin - LEMO 7-pin Cable AA0009 Customized length LEMO 7-pin - LEMO 7-pin Cable (Specify length in cm) AA0020-CL CCP Cables 3 m Microdot - BNC Cable AA0070 3 0 | GRAS 43AG Ear and Cheek Simulator Instruction Manual... - Page 31 Cables for 43BB Low-noise Ear-simulator System 3 m LEMO 7-pin - LEMO 7-pin Cable for Low-noise measuring systems AA0046 10 m LEMO 7-pin - LEMO 7-pin Cable for Low-noise measuring systems AA0047 Customized length LEMO 7-pin - LEMO 7-pin Cable for Low-noise measuring systems. AA0053-CL CLXXXX= Cable length in centimeters to be specifi...
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Page 32: Warranty, Service And Repair
2002/96/EC RoHS directive: 2002/95/EC GRAS Sound & Vibration continually strives to improve the quality of our products for our custom- ers; therefore, the specifi cations and accessories are subject to change. 3 2 | GRAS 43AG Ear and Cheek Simulator...
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